Cleaning pad for wet, damp or dry cleaning

Information

  • Patent Grant
  • 7891898
  • Patent Number
    7,891,898
  • Date Filed
    Friday, May 6, 2005
    19 years ago
  • Date Issued
    Tuesday, February 22, 2011
    13 years ago
Abstract
A cleaning pad (28) is disclosed. The cleaning pad (28) includes a base sheet (202) bonded to a fiber mat (203) and exhibits improved debris retention when a liquid is applied to the pad (28) or the surface to be cleaned. The pad (28) is preferably used with a cleaning system that includes a fluid source (30) in communication with a cleaning tool (22) such that fluid may be selectively applied to a surface to be cleaned or directly to the fiber mat (203) of the cleaning pad (28).
Description
BACKGROUND OF THE INVENTION

1. Field of the Invention


The present invention relates to the field of cleaning devices such as hand held dusters and dust mops. More particularly, the present invention relates to a cleaning pad that exhibits improved debris adhesion in wet, damp, and dry dusting.


2. Discussion of the Related Art


For decades, hand held feather dusters, dust rags and other cleaning implements have been used as cleaning tools for the removal of dust adhering to furniture such as dressers and coffee tables, electrical appliances such as computers, lights, interior walls, lintels and the like. Thus, it is generally well known to remove dust or dirt from floors, furniture, and other household surfaces by rubbing a dust rag, cloth or other cleaning implement against the surface such that the dust or dirt adheres to the cleaning implement.


Throughout the last half-century, new cleaning implements have been developed to assist the individual in dusting and similar cleaning chores. While hand held dusters and other cleaning implements are generally well known in the art, numerous drawbacks exist with the current commercially available designs. For example, US Application Pub. No. US 2004/0034956 A1, U.S. Pat. No. 6,813,801, U.S. Pat. No. 5,953,784 and U.S. Pat. No. 6,550,092, hereby expressly incorporated by reference, disclose variations of hand held cleaning devices incorporating a disposable cleaning pad. These devices, while somewhat suitable for the desired application, exhibit notable limitations. For example, none of the above-cited references provide a convenient storage configuration. Rather, in order to store most prior art hand held cleaning implements, the handle must be physically disassembled from its cleaning pad support member. Additionally, the attachment portions of these known devices often comprise a press fitted member that may weaken over time resulting in the support member disengaging from the handle portion during cleaning.


In addition, a suitable retention means has not been developed to adequately maintain the cleaning pad on the support member, during dusting or other cleaning. For example, the handy mop disclosed in US Application Pub. No. US 2004/0034956 A1, discloses arcuate protrusions along the lateral sides of the parallel attachment plates. The arched surfaces and spacing of these protrusions does not always adequately maintain the dust pad on the plates during cleaning. As one performs the normal dusting or cleaning motion, the pad often slides off the plates.


In general, the majority of improvements to hand held dusters and mops have been directed at improving the basic mechanical components of the cleaning device. These improvements have been directed at providing an inexpensive yet robust implement for dry dusting or cleaning. However, notably absent in the prior art is any attempt to provide a hand held cleaning implement that allows for selective wet, damp or dry dusting.


The addition of water or other cleaning solution to some cleaning pads or systems has been shown to increase the efficiency of the cleaning device in absorbing dust and other debris. Despite this knowledge, there are presently no hand held cleaning systems that include an attached water or cleaning fluid reservoir accessible on the cleaning implement to allow a user to single handedly alternate between wet, damp or dry dusting. To date, prior art dusting and cleaning devices require a user to obtain a separate spray bottle or other liquid application means if one desires wet dusting or cleaning. In light of the need for a wet or damp dusting or cleaning system, there is an additional need for improvements in the cleaning solution associated with such systems.


In light of the need for a wet or damp dusting or cleaning system, there is an additional need for improvements in the cloth or cleaning pad associated with such systems. Many of the known disposable dusting or cleaning cloths include fabrics that do not adequately absorb both water and dust. Some improvements to cleaning cloths have been disclosed in, for example in Japanese PCT RO-101, the entirety of which is incorporated by reference. While some improvements to dusting cloths are disclosed in the art, there remains a need for an improved cleaning fiber and orientation that maximizes the wet and dry absorbency of the dusting pad, while at the same time fully facilitating the advantages of the liquid in the cleaning system.


SUMMARY AND OBJECTS OF THE INVENTION

Consistent with the foregoing, and in accordance with the invention as embodied and broadly described herein, a cleaning pad, a dusting pad and a method of using a dusting pad are disclosed in suitable detail to enable one of ordinary skill in the art to make and use the invention.


In one preferred embodiment, a cleaning pad capable of use in wet, damp or dry cleaning includes a combination of fibers and at least one nonwoven sheet. The cleaning pad exhibits improved debris retention when a liquid is applied. In another embodiment, the cleaning pad includes a fluid source operatively coupled to the cleaning tool and the fluid source may selectively apply cleaning fluid to a surface to be cleaned or directly to the fibers of the cleaning pad. In yet another embodiment, the combination of fibers are in the form of a cleaning fiber mat, the sheet is in the form of a base sheet. The fiber mat is layered on one surface of the base sheet and bonded to the base sheet along a central bonding line. The fiber mat may also be bonded to the base sheet at spot bonding regions that define discontinuous lines that running parallel to the central bonding line.


In yet another preferred embodiment, the nonwoven sheet, weighs between 10 to 200 g/m2 and has a thickness of between 0.01-0.1 mm. The fibers and the sheet may be formed from a material conducive to thermal welding the fiber mat and sheet together. The fiber mat may include cotton, wool, polyethylene, polypropylene, polyethylene terephthalate, nylon, or polyacrylic. In one embodiment, the fibers of the fiber mat are formed from a crimped material. The thickness of the fibers that constitutes the fiber mat is preferably between 1-18 denier.


In still another alternative embodiment, the combination of fibers comprise a cleaning fiber mat formed by bonding two or more fiber mats. The two or more fiber mats may be made from different fibers. In one embodiment, a first fiber mat is formed from polypropylene and a second fiber mat is formed from a bi-component tow fiber consisting of a polypropylene core and a polyethylene outer surface. In another embodiment, the cleaning pad includes indicia indicating the orientation of the cleaning pad in relation to the cleaning tool.


In one embodiment, 0.1 to 0.3 g/sq.ft of a cleaning fluid is applied to a surface to be cleaned or to the cleaning pad. In other embodiments, the fibers on the cleaning pad are tapered, helical, comprised of a polymer that allows for the spontaneous transport of aqueous fluids, lobed, include a super absorbent polymer, or include a hydrophilic additive to improve the absorbency of water. In another embodiment, the cleaning tool includes a handle defining an interior recess for receiving a fluid source and a cleaning pad support movably attached to the handle.


In still another embodiment, a dusting pad includes a fiber mat bonded onto one surface of a base sheet along a central bonding line and a plurality spot bonding regions. The cleaning pad is operatively coupled to a fluid source for selective discharge of a cleaning solution onto the fiber mat or the surface to be cleaned. The dusting pad exhibits improved dust retention when a liquid is applied to the dusting pad.


In another embodiment, the cleaning solution is comprised of a mixture of at least water, isoparaffinic hydrocarbon, silicone fluid, sorbatan laurate, polyoxyethylene sorbitan monolaurate, myristalkonium chloride and quaternarium. In yet another embodiment, 0.1 to 0.3 g/sq.ft of a cleaning fluid is applied to a surface to be cleaned or to the dusting pad.


In another embodiment, the cleaning fiber mat is formed by bonding two or more fiber mats. The two or more fiber mats are comprised of different fibers. In one embodiment, a first fiber mat is formed from polypropylene and a second fiber mat is comprised of a bi-component tow fiber consisting of a polypropylene core and a polyethylene outer surface.


In yet another preferred embodiment, a method of using a dusting pad comprising a plurality of fibers and at least one nonwoven sheet includes selectively applying a cleaning solution to a dusting pad or a surface to be cleaned to increase dust adhesion to the dusting pad and moving the dusting pad across the surface to be cleaned. The combination of fibers may include a cleaning fiber mat and the sheet may be a base sheet. The fiber mat may be layered on one surface of the base sheet and bonded to the base sheet along a central bonding line. In one embodiment, the fiber mat is comprised of a first fiber mat formed from polypropylene and a second fiber mat comprised of a bi-component tow fiber consisting of a polypropylene core and a polyethylene outer surface. In one embodiment, the cleaning solution is water and in another embodiment the cleaning solution is comprised of a mixture of at least water, isoparaffinic hydrocarbon, silicone fluid, sorbatan laurate, polyoxyethylene sorbitan monolaurate, myristalkonium chloride and quaternarium. In a final embodiment, 0.1 to 0.3 g/sq.ft of a cleaning solution is applied to a surface to be dusted or to the cleaning pad.


These, and other, aspects and objects of the present invention will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. It should be understood, however, that the following description, while indicating preferred embodiments of the present invention, is given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the present invention without departing from the spirit thereof, and the invention includes all such modifications.





BRIEF DESCRIPTION OF THE DRAWINGS

A clear conception of the advantages and features constituting the present invention, and of the construction and operation of typical mechanisms provided with the present invention, will become more readily apparent by referring to the exemplary, and therefore non-limiting, embodiments illustrated in the drawings accompanying and forming a part of this specification, wherein like reference numerals designate the same elements in the several views, and in which:



FIG. 1 is a perspective view of a first embodiment of an assembled cleaning system capable of wet or dry cleaning, the cleaning system shown in a first cleaning position or 9 o'clock position;



FIG. 2 is an exploded perspective view of the component parts of the cleaning system illustrated in FIG. 1;



FIG. 3 is a side view of the cleaning system in the storage position or 3 o'clock position;



FIG. 4 is a side view of the cleaning system in the liquid application position or 5 o'clock position with the cleaning pad support and a human finger shown in phantom;



FIG. 5 is a perspective view of the underside of the cleaning system illustrating a preferred construction of the fluid-receiving cradle;



FIG. 6 is a vertical cross-sectional view of the cleaning system taken along the longitudinal axis of the device illustrated FIGS. 1-5;



FIG. 7 is a sectional view taken along line 5-5 of FIG. 6;



FIG. 8 is a sectional view taken along line 6-6 of FIG. 6;



FIG. 9 is a sectional view taken along line 7-7 of FIG. 6;



FIG. 10 is side view of a cleaning system in the liquid application position further illustrating an alternative embodiment of the cleaning pad attached to the cleaning system;



FIG. 11 is an exploded partial perspective view of the pivot assembly of the inventive cleaning system illustrated in FIGS. 1-5;



FIG. 12 is an exploded perspective view of the component parts of an alternative embodiment of the cleaning system;



FIG. 13 is a vertical cross-sectional view of the alternative cleaning system illustrated in FIG. 12 taken along the longitudinal axis of the system;



FIG. 14 is a bottom plan view of one preferred embodiment of the cleaning pad of the cleaning system;



FIG. 15 is a plan view of the base sheet of the cleaning pad illustrating the preferred bonding regions;



FIG. 16 is a cross-sectional view of the cleaning pad of FIG. 14 taken along line A-A;



FIG. 17 is a cross-sectional view of the cleaning pad of FIG. 14 taken along line B-B;



FIG. 18 is a top plan view of another preferred cleaning pad;



FIG. 19 is a cross sectional view of FIG. 18 taken along line C-C;



FIG. 20 is a bottom plan view of the cleaning pad illustrated in FIG. 18;



FIG. 21 is a cross-sectional end view of the cleaning pad illustrated in FIG. 18 taken along line D-D;



FIG. 22 is a top plan view of one embodiment of a retaining sheet for use with the cleaning pad;



FIG. 23 is a cross sectional end view of the retaining sheet taken along line G-G of FIG. 22; and



FIG. 24 is a perspective view of the placement of the retaining sheet onto the base sheet of the cleaning pad.





In describing the preferred embodiment of the invention, which is illustrated in the drawings, specific terminology will be resorted to for the sake of clarity. However, it is not intended that the invention be limited to the specific terms so selected and it is to be understood that each specific term includes all technical equivalents, which operate in a similar manner to accomplish a similar purpose. For example, the word connected or terms similar thereto are often used. They are not limited to direct connection but include connection through other elements where such connection is recognized as being equivalent by those skilled in the art.


DESCRIPTION OF PREFERRED EMBODIMENTS

The present invention and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments described in detail in the following description.


1. System Overview

In a basic form, the invention is a cleaning pad that exhibits improved dust retention in wet, damp or dry cleaning. The pad generally includes a combination of fibers and at least one nonwoven sheet and exhibits improved debris retention when a liquid is applied to the pad. The pad is preferably used with a cleaning system that includes a fluid source operatively coupled to a cleaning tool such that fluid may be selectively applied to a surface to be cleaned or directly to the fibers of the cleaning pad.


2. Detailed Description of Preferred Embodiments

Specific embodiments of the present invention will now be further described by the following, non-limiting examples which will serve to illustrate various features of significance. The examples are intended merely to facilitate an understanding of ways in which the present invention may be practiced and to further enable those of skill in the art to practice the present invention. Accordingly, the below examples should not be construed as limiting the scope of the present invention.


Turning initially to FIGS. 1 and 2, the inventive cleaning system 20 is illustrated according to one preferred embodiment of the present invention. Cleaning system 20 is generally comprised of a cleaning tool 22, including a handle portion or handle 24 and pivotally attached cleaning pad support member, cleaning implement support member or cleaning media support 26, a liquid delivery system, cleaning fluid dispenser or reservoir 30 and a cleaning pad or cleaning media 28 attached to the cleaning tool 22 via the cleaning pad support member 26.


Handle portion 24 is preferably a curved ergonomically designed member configured to comfortably fit within the palm of a hand of a user. Handle portion 24 includes an integral top 29, first sidewall 21a, second sidewall 21b, rear wall 23 and bottom 31. Handle portion 24 may be constructed from a variety of synthetic resins, plastics or other suitable materials. In the preferred embodiment, handle portion 24 is constructed from polypropylene. Although the handle portion 24 may be constructed in a wide variety of sizes depending on the intended use, in the preferred embodiment, handle portion 24 is approximately 8.5 inches long, 1.3 inches wide and 1.7 inches high. The preferred dimensions allows for ease of use, manipulation, packaging, shipping and storage of the cleaning system 20 as well as increasing the overall ergonomics of the design. Handle portion 24 may be constructed in a variety of colors for increased aesthetic appeal. It may additionally be constructed from a translucent material.


As will be described in greater detail below, handle portion 24 defines a fluid reservoir-receiving cradle, recess or bay 36. In the preferred embodiment, the insertion of the fluid dispenser or reservoir 30 into the cradle 36 finishes the ergonomic design or form of the handle portion 24. Thus, the palm of a user's hand extends over the top 29 handle portion 24 and the user's fingers extend at least partially around the fluid reservoir 30. Additionally, the preferred curved ergonomic design of the of the handle portion 24 is constructed in a manner such that the pivot point defined by the pivot member receiving cavity 50 is located below the horizontal plane defined by the fluid reservoir 30 within the cradle 36. Such an orientation is advantageous in maximizing fluid application as discussed in greater detail below.


Near the center of the handle portion 24 is an opening or hole 32 extending through handle portion 24 into the bottom 31 of the handle portion. In the illustrated embodiment, opening 32 is approximately 2.5 inches from a pivot member receiving cavity 50 located at the forward end 25 of the handle portion 24. As illustrated in FIG. 4, opening 32 provides a user single-handed access into a fluid reservoir-receiving cradle, recess or bay 36 defined in the bottom 31 of the handle portion 24. Near the forward end 25 of the handle portion 24, above the pivot member receiving cavity 50 is a cantilevered pivot engagement tab 38, extending downwardly into the pivot member receiving cavity 50 described in greater detail below.



FIG. 2 illustrates one preferred embodiment of a fluid reservoir 30 of the cleaning system 20. In the illustrated embodiment, fluid reservoir 30 is in the form of a fluid dispenser or a pump-activated spray bottle configured to retain water or a specialized fluid. The fluid may be comprised of a variety of known products. Preferably the fluid is selected from the commercially available Pledge® Multi-Surface Cleaner, Pledge® Wood and Glass Cleaner, End Dust®, Fantastic® all purpose cleaner, Windex® glass cleaner, anti-bacterials such as Oust® or Lysol®, fragrances such as Glade®, leather or vinyl treatment such as Armor All®, fabric protectors such as Scotch Guard®, or fabric fresheners such as those manufactured by S.C. Johnson & Son, Inc. of Racine, Wis., or Fabreze®. The fluid may alternatively generally comprise, without limitation: any all-purpose cleaner, oil or water based dust inhibitor, anti-static, anti-microbial, antibacterial, sanitizing and de-odorizing agent, dusting agent, glass cleaner, furniture polish, leather or vinyl treatment, other cleaning agent, wax, polish or shining agent, softening agent, friction-enhancing compound, perfumes, dish cleaner, soap, insect repellent or insect barrier, exfoliator or other personal care product, paint for sponge painting or other application, water out emulsions, oil out emulsions, dust mite killer or repellant, abrasive cleaner, shoe polish, pet sanitation products, etc.


As illustrated in FIG. 2, the preferred spray bottle is a generally cylindrical bottle having an integral bottom 51, sidewall 53, second 55 and third 59 sections. A spray cap or nozzle 61 is screwed or press fitted onto the top of the spray bottle. The spray cap 61 includes a pair of opposed flats 63a, 63b configured to selectively engage flanges 71a, 71b of the fluid reservoir-receiving cradle 36. Alternatively, a system of tabs and grooves could be used to form a similar locking mechanism. The spray cap 61 could alternatively include a one sided flat button or a tapered button. In addition to the illustrated spray bottle, the fluid reservoir 30 could take a variety of forms including but not limited to an aerosol package, a deformable handle or reservoir that dispenses fluid by squeezing, a squirt gun or a flexible pouch with an attachable spray nozzle. While the fluid reservoir 30 is illustrated as fitting within the cradle 36 of the handle portion 24, the fluid reservoir may alternatively completely form the handle of the system, having only the upper portion of the cleaning system attached (i.e. the pivot member and the attachment members).


It should be recognized that opposed, flats 63a, 63b of the spray cap 61 provide for a tight fit within the handle portion 24, and further serve to properly orientate the fluid reservoir 30 within the cleaning system 20. Alternatively, it is understood that the fluid reservoir 30 could include other uniquely designed contours that allow for a mating tight fit within the fluid reservoir-receiving cradle 36.



FIG. 5 better illustrates the bottom 31 of the handle portion 24 defining the fluid reservoir-receiving cradle 36. Cradle 36 is generally defined by a lower support 37, handle portion sidewalls 21a, 21b and two U-shaped supports or rails 44 and 46 configured to receive the fluid reservoir 30 of the preferred embodiment. In the preferred embodiment, lower support 37 is comprised of a plurality of ribs 39 extending from the inner side of rear wall 23 of handle portion 24. The forward ends 43 of ribs 39 define the lower support 37 configured to support the bottom 51 of the fluid reservoir 30. In the preferred embodiment, ribs 39 include a central rib 45 having a length roughly equal to diameter of the bottom of the fluid reservoir 30. The remaining ribs 39 define progressively shorter lengths, thereby tapering off from the central rib 45 and supporting the remainder of the circular bottom of the fluid reservoir 30. As best shown in FIG. 9, a pair of triangular retention tabs 42a, 42b extend along opposed sides of the cradle 36 near the lower support 37. Retention tabs 42a, 42b are configured to frictionally engage and retain the lower sidewall 53 of the fluid reservoir 30. Extending forwardly from the retention tabs 42a, 42b, sidewalls 21a, 21b further define the sides of the fluid reservoir-receiving cradle 36 and are spaced in a manner to tightly fit around the sidewall 53 of the fluid reservoir 30.


While in the illustrated preferred embodiment, the fluid reservoir 30 is press fit or friction fit within the cradle 36 of the handle portion 24, it is recognized that alternative configurations could be utilized to retain the fluid reservoir 30 within the handle portion 24. For example, Velcro® or rubber bands could be included on a segment of the handle portion 24 in order to retain the fluid reservoir 30 within the handle portion 24. Other support structures or retaining features could be hingedly or otherwise attached to the handle portion to retain the fluid reservoir with in the handle portion.


Near the forward end of the fluid reservoir-receiving cradle 36 is a first U-shaped bottleneck receiving support 44. First bottleneck receiving support 44 is configured to press fit around, receive and retain the fluid reservoir 30 of the preferred embodiment. As illustrated in FIGS. 6 and 8, first bottleneck receiving support 44 is configured to press fit around the fluid reservoir 30 near the junction 59 of the second 55 and third 57 sections of the reservoir 30.


Slightly forward of the first bottleneck receiving support 44 is a second U-shaped spray cap receiving support 46. Spray cap receiving support 46 is configured to press fit around, retain and orientate the spray cap 61 of the fluid reservoir 30. As best illustrated in FIG. 7, spray cap receiving support 46 is defined by a pair of flanges 71a, 71b extending from the inner side of opposed sidewalls 21a, 21b. Flanges 71a, 71b are configured to press fit around flats 63a, 63b of fluid reservoir spray cap 61 when the reservoir is placed within the cradle 36. The tight fit defined by flanges 71a, 71b and flats 63a, 63b serves to properly orientate spray cap 61 within the fluid reservoir-receiving cradle 36 such that spray cap 61 faces in a direction away from the cradle 36. Forward of the opening 32, are a plurality of structural support ribs 48 extending forwardly towards the pivot member receiving cavity 50.


Turning now to FIGS. 6 and 11, at the forward end 25 of the bottom 31 of the handle portion 24 is a pivot member receiving cavity 50. Pivot member receiving cavity 50 is defined between integral opposed ears 49a, 49b located at the forward end 25 of the handle portion 24. Ears 49a, 49b include opposed grooves 52a, 52b on their inner cavity surface configured to slidably engage the axles 80a, 80b of a circular pivot member 82 during assembly. Grooves 52a, 52b have a width that is equal to or slightly wider than the diameter of the axles 80a, 80b of the circular pivot member 82. It is understood that grooves 52a, 52b and the pivot member receiving cavity 50 are configured to accommodate a variety of alternative cleaning pad support members 26 or other cleaning implements having pivot members 82 attached at their proximal ends.


At the terminal end of the grooves 52a, 52b, are pivot holes 54 configured to receive the axles 80a, 80b of the circular pivot member 82 and allow pivotable motion therein. A curved slot 83 extends laterally from grooves 52a, 52b and defines a passage configured to allow the movement of circular pivot retention tabs 85 extending from the pivot member 82. On opposed sides of the forward end of the pivot member receiving cavity 50 are circular pivot retention tab holes 87 configured to engage and receive the circular pivot retention tabs 85 located on the pivot member 82.


Projecting downwardly from the top 29 of the handle portion 24 into the pivot member receiving cavity 50 is a resiliently biased semi-flexible pivot engagement tab 38. Engagement tab 38 is comprised of a first end 39 attached to the handle portion 24 and a second free end 91 configured to engage notches 102, 104, 106 on the outer surface of the pivot member 82 as will be described in greater detail below.


Attached within the pivot member receiving cavity 50 of the handle portion 24 is the cleaning pad support member 26. Cleaning pad support member 26 is comprised of an integral circular pivot member 82, linking section 93 and support head generally designated 92. Circular pivot member 82 includes integral axles 80a, 80b on its opposed lateral sides. As best shown in FIG. 11, axles 80a, 80b are configured to fit within pivot holes 54 and rotatably pivot therein. Pivot member 82 also includes a circular pivot retention tab 95. Circular retention tab 95 is configured to fit within retention tab holes 87 and support the system is in the cleaning position. Pivot member 82 defines three notches or indentations 102, 104, 106 corresponding to alternative positions of the cleaning pad support member 26. A cleaning position notch 102, liquid application notch 104 and storage position notch 106 are defined on the external surface of the pivot member 82. In general, the preferred pivot assembly requires about between 2-3 lbs of pivot force in order to rotate it.


Integral with and extending from the pivot member 82 is the linking section 93 and support head 92. In the preferred embodiment, support head 92 of cleaning pad support member 26 includes a pair of parallel attachment members or attachment prongs 108a, 108b configured to engage the pockets or sleeves 110a, 110b of a cleaning pad 28 as is generally known in the art. Attachment members 108a, 108b may be spaced apart in a variety of configurations, however, in the preferred embodiment, attachment members 108a, 108b have a total width of about 1.25 inches from opposed outside lateral edges. The preferred attachment members 108a, 108b are about 6.75 inches long, about 0.75 inches thick, and about 0.80 inches wide. Attachment members 108a, 108b define a rounded leading edge 107 configured for ease of insertion into the sleeves 110a, 110b of cleaning pad 28. It is recognized that although the preferred embodiment illustrates a pair of attachment members 108a, 108b multiple configurations may be utilized. For example, a single, wider attachment member could be utilized. Alternatively, three or more attachment members could be utilized.


Attachment members 108a, 108b include a plurality of spaced cleaning pad retaining tabs, barbs or projections 112 projecting from their upper surface 105. In the illustrated embodiment, retaining tabs 112 are triangular-shaped tabs having a first wall 114 extending in a generally vertical direction from the upper surface of the attachment members 108a, 108b and a second angled wall 116 sloping from the upper edge of the first wall 114 towards the distal end of the attachment members 108a 108b. Tabs 112 are preferably raised about 0.050 inches from the attachment members 108a, 108b. The unique triangular configuration of the retaining tabs 112 serves a dual function. The angled wall 116 allows for ease of placement of the cleaning pad 28 on the attachment members 108a, 108b during assembly, while the vertical first wall 114 retains the cleaning pad 28 on the attachment members 108a, 108b during the cleaning motion.


In addition to the unique configuration of the retaining tabs 112, their orientation on the attachment members 108a, 108b also serves to maintain the cleaning pad 28 on the attachment members 108a, 108b. In the illustrated embodiment, the retaining tabs 112 are staggered and include a leading tab 115, three intermediary tabs 117 and a trailing tab 119. In the illustrated embodiment, each attachment member 108a, 108b includes five retaining tabs 112. Testing has illustrated that when the retaining tabs 112 are spaced an equal distance from one another, their retention function is not as great as when the tabs are placed in the staggered configuration illustrated in the preferred embodiment. In the preferred embodiment, the first tab is spaced 1.0 inch, the second is spaced 2.0 inches, the third 2.5 inches, the fourth 3.0 inches and the fifth 4.0 inches from the rounded leading edge 107.


In one embodiment, the attachment members 108a, 108b may be expandable, inflatable, partially inflatable, or include an inflatable portion. The inflatability provides for an improved fit of the cleaning pad 28 on the attachment members 108a, 108b as well as facilitating hands free removal of the cleaning pad 28 from the attachment members 108a, 108b.


Cleaning pad 28 is generally known in the art and comprised of a combination of fibers defining a cleaning surface 111 and attachment portion 113. The cleaning pad 28 may, for example, include a plurality of fluffed nonwoven fabrics made of synthetic resins, which may be welded to one another. The pad may include fibers constructed from PP, PE, PET fibers in a variety of alternative percentages by weight. In the illustrated embodiment, attachment portion 113 defines a pair of pockets or sleeves 110a, 110b configured to receive the attachment members 108a, 108b of the cleaning pad support member 26. Cleaning pad 28 is preferably, a 20 g/sqm spun lace cloth with between 1-4% mineral oil manufactured by Haso Corporation of Japan. Such cleaning or dusting pads are described in PCT/JP2004/10507 the entirety of which is expressly incorporated by reference.


When the cleaning system 20 is used, the sleeve-like cleaning pad 28 is mounted over the attachment members 108a, 108b so that all of the retaining tabs 112 are within the sleeves 110a, 110b. The retaining tabs 112 are, in this configuration, thus capable of being fully enclosed by the cleaning pad 28, avoiding the possibility of the attachment members 108a, 108b scratching delicate furniture or other items being contacted.


The cleaning surface 111 of cleaning pad 28 may be comprised of a polymer that allows for the spontaneous transport of aqueous fluids. Such polymers are described in, for example, U.S. Pat. Nos. 5,723,159, 5,972,505 and 5,200,248 the disclosures of which are expressly incorporated by reference.


It should be recognized that the polymer fibers of the cleaning pad can take a variety of forms to increase various performance characteristics of the cleaning system 20. Standard circular fibers may be used, as is generally known in the art. Alternatively, the individual fibers on the cleaning pad may be lobed in the form of loose “tow” fibers. The unique lobed configuration creates channels within the individual fibers enabling improved capillary action on each individual fiber and increasing the overall cleaning or dusting surface area thereby increasing the overall efficiency of both wet and dry dusting. The higher surface area results in an increase in the proportion of particles adhering in the grooves or channels and results in dust particles being “trapped” within the grooves of the lobed fiber. The lobed fibers generally exhibit improved dust retention, more efficient wet wiping and longer life than standard circular fibers. Furthermore, the lobed fibers can be made stiffer thereby generating a higher wiping pressure in a smaller contact area. It is understood that the inventive lobed fibers could be comprised of a multitude of polymers with PP, PE or PET being recognized as the most cost effective alternatives. Alternatively acrylic or biodegradable polymers could be utilized.


In another alternative embodiment, the cleaning pad 28 may include stiffer or strut fibers attached to mass of tow fibers. In this arrangement, the stiffer fibers (usually in the range of about 0.3 mm) carry the majority of the stress applied to the cleaning pad 28. The tow may be linked to the stronger fibers by entanglement at the outer ends of the fiber. The stiffer fibers result in a cleaning pad 28 that is springy resulting in a more desirable feel of applied force for users. The stiffer fibers can further be utilized to clean difficult areas such as crevices, blinds or screens. The stiffer fibers have the further advantage in that they keep the tow volume expanded, thereby increasing dust migration into the tow fibers.


In yet another alternative embodiment, the cleaning pad 28 could include absorbent materials in particulate form fixed onto the remaining fibers of the cleaning pad 28. The absorbent materials may take the form of known super absorbent polymers SAP. The SAPs may be, for example, acrylic based polymers applied as a coating or turned into fibers directly. Such commercially available SAPs generally include X-linked polyacrylic acids or X-linked starch-acrylic-acid-graft-polymers, the carboxyl groups of which are partially neutralized with sodium hydroxide or caustic potash. The SAPs may be made by such processes as a solvent or solution polymerization method or the inverse suspension or emulsion polymerization method. Such SAPs are disclosed in, for example, U.S. Pat. No. 6,124,391 the disclosure of which is hereby expressly incorporated by reference.


The absorbent materials increase the overall absorbency of the fibers, prevent the fibers from packing close together into a fiber mass, and enhance the friction of the fibers. The “string of pearls” arrangement also allows for strategically placed high absorbency regions on the cleaning pad. For example, if it is desirable to have the forward end of the cleaning pad 28 be more absorbent than the remainder of the cleaning pad 28, the forward end could include a higher percentage of the particulate absorbent materials.


The cleaning pad 28 could also include fibers that are formed into helices. Such fibers can be formed by drawing fiber bundles over a blade or heating coaxial bicomponent fibers. The resulting helical fibers exhibit a fluffier texture and more attractive appearance while at the same time increasing the volume (while using less fiber) and dust retention of the duster. The helical nature of the fibers is also advantageous in that they allow coarse fibers to feel softer due to the spring effect. Furthermore, the fibers gradual loss of the helical nature, can serve as an indication of the effective life of the cleaning pad.


It should be recognized that none of the aforementioned fiber materials or configurations are exclusive. The cleaning pad could include strategic combinations of the various fibers and other known fibers. In one example, the cleaning pad may be comprised of between 25-100% of the lobed fibers by weight.


Similarly, although the preferred embodiment discloses a single cleaning surface 111, the invention is in no way limited to such a single cleaning surface. To the contrary, numerous alternative configurations are within the scope of the present invention. For example, the inventive pad could include multiple cleaning surfaces, with alternate or similar fiber configurations to accommodate various cleaning functions. In one embodiment, a cleaning pad 28 could be two sided with one side of the cloth for dusting and the alternate side of the cleaning pad 28 for cleaning. This could also be accomplished by turning the pad “inside out” to expose a new clean surface. Alternatively, a triangular or other multi-sided cleaning pad 28 could be utilized. Circular cleaning pads are also envisioned and within the scope of the present invention. In general, a variety of cleaning pad 28 shapes or configuration could be utilized to maximize the various properties of the cleaning pad 28 and selected fibers.


As noted above, the orientation and type of fibers utilized on the cleaning pad 28 could include a wide variety of alternatives. For example and in no way limiting, the cleaning pad 28 could include a generally fluffy pad including a flat center strip around the area defined by the pockets or sleeves 110a, 110b. Such an orientation may increase the surface area and exhibit a better efficacy. Additionally, the center strip could include an absorbent pillow or tube extending down the center of the cleaning pad 28. Such an absorbent pillow could provide an area of high absorbency on the cleaning pad 28. Various alternative combinations are envisioned including, for example, cleaning pads consisting of alternating sections of sponges, feather-like structures, micro-fibers or cellulose foam. Wood pulp is preferred.


The cleaning pad 28 could also include a fluffy cloth with a hydrophilic additive to improve the absorbency of water. Such hydrophilic additives include but are not limited to glycerin and glycols. The cleaning pad 28 could also be comprised entirely of an absorbent material such as rayon. The cleaning pad 28 could also have a fragrance added to improve the smell of the cleaning pad 28.


The cleaning pad 28 or cleaning pad support member 26 could also include a piezoelectric crystal to impart an electrostatic charge on the cleaning pad during use to increase dust retention. Such crystals are generally known and typically generate a charge when subjected to mechanical stress. Examples of materials that can be used include but are not limited to quartz analogue crystals like berlinite (AlPO4) and gallium orthophosphate (GaPO4), ceramics with perovskite or tungsten-bronze structures (BaTiO3, KNbO3, LiNbO3, LiTaO3, BiFeO3, NaxWO3, Ba2NaNb5O5, Pb2KNb5O15). Additionally some Polymer materials like rubber, wool, hair, wood fiber, and silk exhibit piezoelectricity to some extent and may be utilized. Additionally, the polymer polyvinylidene fluoride, (—CH2—CF2—), which exhibits piezoelectricity several times larger than quartz may be used.


The cleaning pad 28 may also include a portion of an unbonded web material, as described in U.S. Pat. No. 5,858,112, issued Jan. 12, 1999 to Stokes et al. and U.S. Pat. No. 5,962,112, issued Oct. 5, 1999 to Haynes et al. or other material such as described by U.S. Pat. No. 4,720,415, issued Jan. 19, 1988 to Vander Wielan et al. or any super absorbent material such as described in U.S. Pat. No. 4,995,133, issued February 1991 and U.S. Pat. No. 5,638,569 both issued to Newell, U.S. Pat. No. 5,960,508, issued Oct. 5, 1999 to Holt et al., and U.S. Pat. No. 6,003,191, issued Dec. 21, 1999 to Sherry et al., all of which are hereby expressly incorporated by reference herein, in their entirety.


In one embodiment, the cleaning pad 28 may comprises a spunbond fiber nonwoven web having a basis weight of approximately 68 grams per square meter. The spunbond fibers may comprise bicomponent fibers having a side-by-side configuration where each component comprises about 50%, by volume, of the fiber. The spunbond fibers will comprise first and second polypropylene components and/or a first component comprising polypropylene and a second component comprising propylene-ethylene copolymer or a polyester. About 1% or more or less of titanium oxide or dioxide is added to the fiber(s) in order to improve fiber opacity. The spunbond fiber nonwoven webs are thermally bonded with a point unbonded pattern. The nonwoven web is bonded using both heat and compacting pressure by feeding the nonwoven web through a nip formed by a pair of counter-rotating bonding rolls; the bonding rolls comprise one flat roll and one engraved roll. The bonded region of the nonwoven web comprises a continuous pattern that corresponds to the pattern imparted to the engraved roll. Further, the bonded region is applied to the web when it passes through the nip. The bonded region will range between approximately about 27% to about 35% of the area of the nonwoven web and forms a repeating, non-random pattern of circular unbonded regions. Absorbency enhancing or superabsorbent materials, including superabsorbent polymers, powders, fibers and the like may be combined with the cleaning pad 28.


Alternatively, the pad 28 comprises a laminate of an air-laid composite and a spunbond fiber nonwoven web. The nonwoven web may comprise monocomponent spunbond fibers of polypropylene having a basis weight of approximately 14 grams per square meter. The air-laid composite may comprises from about 85% to about 90% kraft pulp fluff and from about 10% to about 15% bicomponent staple fibers. The bicomponent staple fibers may have a sheath-core configuration; the core component comprising polyethylene terephthalate and the sheath component comprising polyethylene. The air-laid composite has a basis weight between about 200 and about 350 grams per square meter and an absorbency of between about 8 and about 11 grams per gram.


The cleaning pad 28 may also include a portion or side of hydrophilic fibers useful for scrubbing. Additionally, nylon fibers may be used to increase the coefficient of friction when they become wet. Portions of the cleaning pad 28 may be composed of microfibers and ultra-microfibers having a denier per filament (dpf) less than or equal to about 1.0.


As described, the cleaning pad 28 can be formed by any material or material-forming process known, including woven and non-woven materials, polymers, gels, extruded materials, laminates, layered materials which are bonded together integrally and thus form a co-material, fused materials, extruded materials, air laying, etc.


The cleaning pad 28 can alternatively be optimized for providing a cleaning fluid to the surface, such as with micro capsules or encapsulated fluids or agents. The enhanced surface of the cleaning pad 28 can have scrubbing or abrasive qualities. The enhanced surface can also be formed by a mechanical stamping, bonding, pressing, compression, extrusion, sprayed, sputtered, laminated or other surface forming or affecting process. The various alternative cleaning solutions discussed above could be microencapsulated into the cleaning pad such that they are selectively released by some additional stimulus. It is understood that various cleaning solutions microencapsulated into the cleaning pad could be activated by water, another chemical in the fluid reservoir or pressure. The solutions could be dry impregnated. Alternatively, the chemical solutions could be encapsulated in pockets or bubbles on or within the pad 28 or on the cleaning media support 26. The pockets could be designed to burst and release the cleaning solution upon the application of moderate pressure.


It should be understood that the cleaning system 20 may be presented with its component parts partially preassembled or unassembled. During assembly or manufacture of the cleaning system 20, the ears 49a, 49b of the preformed handle portion 24 described above can be forced to flex outward from each other as the pivot member 82 is inserted therebetween in the orientation described above. The axles 80a, 80b slide along the path defined by the grooves 52a, 52b until they reach the pivot hole 54 defined at the terminal end. Axles 80a, 80b fit within holes 54 thereby defining a pivot joint. The sleeves 110a, 110b of the cleaning pad 28 are then placed over the attachment members 108a, 108b securing the cleaning pad to the system.


The circular pivot member 82 accommodates rotational movement of the cleaning pad support member 26 in a range of about 55 to 65 degrees relative to the longitudinal axis of the handle portion 24. The preferred range is ideal for accommodating the alternate fiber lengths and cloth geometries of the inventive system. Particularly preferred is a range of about 61 degrees. When the cleaning pad support member 26 is fully extended in its cleaning position (FIG. 1), circular retention tabs 95 fit within retention tab holes 87 and maintain the cleaning pad support member 26 in its cleaning position.



FIGS. 1, 3, 4, and 10 illustrate the inventive cleaning system in its alternating positions. FIG. 1 illustrates the cleaning system 20 in its cleaning position. As described above, in the cleaning position the cleaning pad support member 26 extends forwardly, pivot engagement tab 38 engages the cleaning position notch 102 of pivot member 82, and retention tabs 95 fit within the retention tab holes 87. These engagement or retaining features create at least 2.5 lbf of pivot force. This amount of force is sufficient to maintain the cleaning pad support member 26 in its fully extending cleaning position despite any torque experienced during normal dusting, drying, or cleaning motions. Thus, in the cleaning position, a user may manipulate the cleaning system 20 via the handle portion 24. Additionally, the user may apply the water or other liquid housed within the fluid reservoir 30 directly onto the surface to be cleaned. The user may insert a finger through the opening 32 and depress the spray cap 61 thereby causing the discharge of the fluid housed within the reservoir 30. Due to the orientation of the cleaning system 20 in the cleaning position, the liquid will typically be applied directly to the surface to be cleaned in an area behind the cleaning pad 28 when the system is in a horizontal orientation such as when dusting a coffee table. Alternatively, a cleaning solution can be sprayed onto a vertical surface to be cleaned, such as a window or door molding.



FIGS. 4 and 10 illustrate the cleaning system 20 in a second liquid application position. In order to move the cleaning pad support member 26 into the liquid application position a user must hold the handle portion 24 and apply torque to the cleaning pad support member 26 to move it from the cleaning position illustrated in FIG. 1. As sufficient torque is applied to overcome the forces of the inventive engagement features, the circular pivot member 82 rotates downwardly into the liquid application position. In the liquid application position, pivot engagement tab 38 engages the liquid application notch 104 of the pivot member 82 thereby holding the cleaning pad support member 26 is its angled liquid application state. In the illustrated embodiment, the angle Ø between the cleaning pad support member 26 and the handle portion 24 in the liquid application position may be between 45° and 68°. Preferably, the angle Ø between the cleaning pad support member 26 and the handle portion 24 is between 55° and 68° with 63° being particularly preferred. This preferred angle takes into consideration the spray pattern of the fluid reservoir (shown in phantom) in order to achieve liquid application onto the greatest surface area of the cleaning surface 111 of the cleaning pad 28.


During dusting or cleaning a user may repeatedly rotate the cleaning pad support member 26 from its cleaning position to its liquid application position as needed. Alternatively, as noted above, a user may simply apply liquid directly to the surface to be cleaned while using the cleaning system 20 in the cleaning position.



FIG. 3 illustrates the storage position of the cleaning system. As illustrated in FIG. 3, in the storage position the cleaning pad support member 26 is rotated backwards such that it is generally parallel to the plane defined by the longitudinal axis of the handle portion 24. In the storage position, engagement tab 38 engages the storage position notch 106 thereby maintaining cleaning pad support member 26 in its folded position. In the storage position, the cleaning system 20 may be easily stored into a variety of spaces such as kitchen drawers or cabinets. Alternatively, the system can be hung on a wall using the opening 32 in the handle portion 24.


As it can be appreciated from the description above the invention includes a novel method of adjusting the cleaning pad support member 26. One first obtains the cleaning system 20. While holding the handle portion (and preferably no other portion of the device), one presses the cleaning pad support member 26 against an object (e.g. a wall or a floor) to cause rotation of the cleaning support member 26 relative to the handle portion 24. In an alternative embodiment, the pivot member may include a torsion spring or other biasing means to return the cleaning support member 26 to its cleaning position without effort on behalf of the user.



FIG. 10 illustrates an alternative embodiment of the cleaning pad 128 of the present invention. Cleaning pad 128 is similar to the pad previously described, however, pad 128 includes tapered fibers 129 on its cleaning surface 111. As illustrated in FIG. 10, fibers 129 are tapered in a manner such that those fibers 129 closest to the handle portion 24 are shortest. As one moves away from the handle portion 24, the fibers 129 become progressively longer in length. The tapered fiber length further accommodates the cleaning system 20 in achieving a maximum cleaning fluid application surface area on the cleaning surface 111, in the fluid application position.



FIGS. 12 and 13 illustrate an additional alternative embodiment of the cleaning system. As illustrated by FIGS. 12 and 13, the cleaning fluid reservoir 30 of the previous embodiment has been replaced with a flexible pouch 130. In the alternative embodiment, spray nozzle or cap 134, with an angled dip tube 140 may be retained in the handle portion 24 as previously described. A user may puncture the seal at a preformed location 138 on the pouch with the pump dip tube 140. Alternatively, a user may screw the spray cap 134 onto a threaded pouch fitment 151 or the spray cap 134 may be directly staked to the pouch 130 during the filling operation. As illustrated in FIGS. 12 and 13, the cradle of the previous embodiment has been replaced with a snap-fitting cover 142 attached via a living hinge 141 to the handle portion 24. Cover 142 secures the pouch 130 within the cleaning system 20.


b. Preferred Embodiments of the Cleaning Pad for Use in Wet Damp or Dry Dusting


FIGS. 14-24 illustrate preferred embodiments of the cleaning pad 28 that may be used with the inventive cleaning system 22. In the illustrated preferred embodiments, the cleaning pad 28 is generally comprised of a cleaning fiber mat 203 layered on one surface of a base sheet 202. The fiber mat 203 is preferably bonded to the base sheet 202 in the lengthwise direction of the fiber mat 203 along a central bonding line 204 extending continuously along the center of the base sheet 202. In addition, the fiber mat 203 is bonded to the base sheet 202 at spot bonding regions 207 defining discontinuous lines that run parallel with the central bonding line 204. As described in greater detail below, although the size of the fibers defining the fiber mat 203 of the cleaning pad 28 may vary depending on the application, it is preferable that the size of the fibers be between 1-18 denier.


Turning initially to FIGS. 14-16, a first preferred embodiment of the cleaning pad 28 of the present invention is illustrated. The cleaning pad 28 is formed by layering a fiber mat 203 on one surface of a base sheet 202. The base sheet 202 is preferably constructed from a nonwoven sheet or other equivalent as is known in the art. The base sheet 202 and fibers 203 are preferably bonded together along a central bonding line 204. In the illustrated embodiment, the central bonding line 204 extends from a first base sheet edge 212c to an opposed second base sheet edge 212d.


As illustrated in FIG. 15, in addition to the central bonding region 204, the fiber mat 203 and the base sheet 202 are bonded at a plurality of spot bonded regions 207. The spot bonded regions 207 generally define discontinuous parallel broken lines 205a, 205b, 206a and 206b. In the illustrated embodiment, the broken lines 205a, 205b, 206a and 206b are parallel to the central bonding line 204.


The cross sectional views illustrated in FIGS. 16 and 17, better illustrate the bonding regions of fiber mat 203. The fibers of the fiber mat 203 generally extend freely between the central bonding line 204 and the edges 212a, 212b of the base sheet 202. However, portions of the fiber mat 203 are intermittently bonded to the base sheet 202 at the above described spot bonding regions 207 (FIG. 16). Alternatively, FIG. 17 illustrates a section of the fiber mat 203 that is not bonded at a spot bonding region 207 and extends freely from the central bonding line 204 to the end of the fiber 231a. Regardless of the orientation of the spot bonding regions 207, in the illustrated embodiments, the ends 231a and 231b of the fiber mat 203 are not bonded to the base sheet 202 and freely extend. The cleaning pad 28 is thus designed so fibers of the fiber mat 203 are free to move along lengths ranging from either the central bonding line 204 or the spot-bonded regions 207 to the ends 331a and 331b. Due to this unique bonding pattern between the fiber mat 203 and base sheet 202 (characterized by discontinuous spot-bonded regions 207 between the central bonding region 204) entanglements of the individual fibers is lessened and the cloth exhibits an overall fluffier appearance.


As best illustrated in FIG. 15, the spot bonded regions 207 generally define lines 205a, 205b, 206a and 206b that are parallel to the central bonding line 204. The individual spot bonded regions 207 are formed intermittently in a non-continuous linear fashion. The respective individual spot bonded regions 207 may be formed in a variety of shapes including circles, ellipses, ovals, straight lines, or the like. The spot bonded regions 207 may be formed such that the shapes of the spot bonded regions 207 are uniform, or, alternatively, the above shapes may be formed by a variety of combinations of the above shapes.


The width of the individual spot bonded regions 207 (along the lengths of the fibers) is preferably between 0.5-5 mm, and the length (in the lengthwise direction of the center bonding region) is preferably 2-15 mm. Each of the spot-bonded regions 207 is preferably spaced between 5-50 mm apart. It is understood that the spacing between the individual spot bonded regions 207 may be uniform throughout the entire range of the spot-bonded regions 207, or the spacing may vary in a variety of patterns.


In addition to the described orientation of the spot bonded regions 207, the spot-bonded regions 207 may be situated such that each of the spots alternates slightly to the left and right in the width-wise direction of the base sheet 202 (lengthwise direction of the fibers) with the parallel line as the center, so that the spot bonded regions 207 are positioned in zigzag patterns to the left and right with the parallel lines defining central lines. Thus, the spot-bonded regions 7 need not necessarily be lined up linearly above the parallel lines 205a, 205b, 206a, 206b.


It should be understood, that the spot-bonded regions 207 can be produced in other configurations, and are not limited to the above noted configuration. For example, the spot bonded regions 207 may define one parallel line between the central bonding line 204 and the edge 212a and one parallel line between the central bonding line 204 and the opposed edge 212b, so that they define only two parallel lines (e.g., 205a and 205b).


Alternatively, the spot bonded regions 207, could also define three parallel lines between the central bonding line 204 and edges 212a, 212b, such that they form a total of six parallel lines over the entire cleaning pad 28. Any number of lines could be formed, depending on the application.


The various spot bonded regions 207 do not overlap in the lengthwise direction of the fibers of the fiber mat 203, and thus bonding at multiple sites along the length of a single fiber does not occur. As a result, the majority of the length of the fiber on the fiber mat 203 is free. Because the fiber mat 203 is strategically unimpeded, this effectively prevents entanglement of the fibers of the fiber mat 203, while also allowing increased foreign matter trapping and retaining capacity to be maintained over a longer period of time.


Although the fibers of the fiber mat 203 can take a variety of lengths, in the preferred embodiment, the lengths of the fibers from the central bonding region 204 to the ends of the fibers in the lengthwise direction of the fibers is preferably 50-100% of the length from the central bonding region 204 to the edges (212a or 212b) of the base sheet 202. In one preferred embodiment, a cleaning pad includes a base sheet 202 with a width of 300 mm and a length of 200 mm. Preferably, the length from the central bonding region 204 to the edge of the base sheet 202 is 100 mm, and the length of the fibers of the fiber mat 203 is preferably between 50-100 mm.


As illustrated in FIGS. 16 and 17, the fiber ends 231a and 231b in the lengthwise direction of the fibers of the fiber mat 203 are not bonded to the base sheet 202, and the length of the fiber that is allowed free movement from the ends 231a or 231b of the fibers of the fiber mat 203 to the bonded regions varies from about 10-40 mm from the spot bonded regions to about 50-100 mm from those fibers that are only bonded along the central bonding line. Preferably, the lines defined by the spot-bonded regions 207 are in the range of 10-40 mm from the edges (202a or 202b) of the base sheet 202.


As noted above, the material of the base sheet 202 may be a non-woven cloth sheet, paper, synthetic resin sheet, or other known material. In the illustrated embodiment, the base sheet 202 is preferably a non-woven cloth sheet capable of trapping various types of foreign matter. Preferably, the nonwoven cloth used for the base sheet 202, weighs between 10 to 200 g/m2 and has a thickness of between 0.01-0.1 mm.


In the preferred embodiment, when a thermal-welded fiber is used for the fiber mat 203, it is preferable for the base sheet 202 to have thermal welding capacity conducive to bonding with the fiber mat 203. Likewise, when a nonwoven cloth sheet is used it is preferable that it be thermally weldable to the fiber mat 203. As noted above, examples of such thermally weldable short fibers include polypropylene, polyethylene, polyethylene terephthalate, polyester, rayon and other fibers or materials in which the fibers are present in a core-sheath structure or in a side-by-side structure, thus forming composite fibers.


The nonwoven cloth sheet that is used as the base sheet 202, may be a spunless nonwoven cloth, spunbonded nonwoven cloth, thermally bonded nonwoven cloth, air-through bonded nonwoven cloth, spot-bonded nonwoven cloth, or others. In the preferred embodiment, a spunless nonwoven cloth or thermally bonded nonwoven cloth is utilized. The nonwoven cloth sheet may be formed from a single sheet, or may be formed by the lamination of multiple sheets of the same or different types.


The fiber mat 203 used in the cleaning pad 28 may be produced by overlaying multiple fibers so that they run in the same direction, or may be formed from a fiber aggregate. The fiber mat 203 is preferably in a sheet-form. In addition, the fiber mat 203 can be partially bonded by means of welding or the likes between the various fibers. The fiber mat 203 may include uniform fibers throughout, or may be constituted from multiple types of fiber.


The fiber mat 203 may also be manufactured from fibers having the same, or multiple thicknesses. Likewise, the fiber mat 203 can be formed from an aggregate in which fibers of different color are used, regardless of whether the thicknesses and types of the constituent fibers are the same or different.


As noted above, a wide variety of fibers may be used in the fiber mat 203 including cotton, wool and other natural fibers, polyethylene, polypropylene, polyethylene terephthalate, nylon, polyacrylic, polyesters, rayon and other synthetic fibers, core/sheath fibers, sea-island type fibers, side-by-side fibers and other composite fibers. Synthetic fibers and composite fibers are preferred due to their thermal welding properties. In one preferred embodiment, the tow is a bi-component fiber consisting of a core that has a higher melting point than the sheath. For example, in one embodiment the tow is a bi-component fiber consisting of a polypropylene core and a polyethylene outer surface or sheath. This is particularly preferred, because both materials have superior thermal welding properties. In addition, the fibers used for the fiber mat 203 may be formed from a crimped material produced by mechanical crimping or thermal crimping.


In one preferred embodiment, the fiber mat 203 may be a long fiber mat generally referred to as “tow,” which is manufactured from polyethylene, polypropylene, nylon, polyester, rayon, or similar materials. The thickness of the fibers that constitutes the fiber mat 203 is preferably between 1-18 denier. In addition, the weight of the fiber mat 203 is preferably between 5-30 g/m2 when the thickness of the fibers is about 2 denier.


The cleaning pad 28 of the present invention can be obtained by layering the fiber mat 203 on the surface of the base sheet 202, and then bonding the two along the central bonding line 204 and spot-bonded regions 207 as previously described. This can be accomplished by thermal welding, ultrasonic welding, bonding, contact, or other known method.


In the preferred embodiments, the base sheet 202 and fiber mat 203 are formed from thermally weldable materials, and the laminate of the base sheet 202 and fiber mat 203 are heated and compressed with a hot roll to bond the two surfaces together. Alternatively, if the base sheet 202 or fiber mat 203 are not weldable, a thermally bondable material such as hot melt adhesive can be laminated between them, or bonding can be carried out by directly applying an adhesive between the two layers.


As discussed above, the fiber mat 203 or base sheet 202 may be coated with a chemical agent for improving foreign matter trapping performance. Examples of such chemical agents include liquid paraffin and other mineral oils, silicone oils and nonionic surfactants.


When the preferred cleaning pad is incorporated into the preferred cleaning system 22, the fiber mat 203 is laminated onto one side of the base sheet 202 and bonded at a central bonding region 204. In addition, bonding is carried out at spot-bonded regions 207 formed discontinuously along parallel lines between the two edges 212a and 212b parallel to the center bonding region 4. Thus, a cleaning pad 28 is formed in which the two ends in the lengthwise direction of the fibers of the fiber mat 203 are not bonded to the base sheet 202.


As illustrated in FIGS. 18, 19 and 21 pockets or sleeves 110 of the cleaning pad 28 are formed by laminating and bonding a retaining sheet 221 on the back surface of base sheet 202 (opposite the fiber mat 203), thereby forming a retaining opening 223 consisting of space whereby the arm of the attachment members 108a, 108b of the cleaning tool 22 can be inserted and retained. In one embodiment, the retaining sheet 221 is bonded to the base sheet along the central bonding line 204 and spot bonding regions 207 used to bond the fiber mat 203 to the base sheet 202 thereby defining two sleeves 110a, 110b. The retaining sheet 221, need not be bonded along the same lines as the fiber mat, and may take a variety of configurations so long as it defines a retaining opening 223.


As best illustrated in FIG. 18, base sheet 202 of the cleaning pad 28 may also be provided with numerous cuts or fringes 225 that are cut in the same direction as the lengthwise direction of the fibers of the fiber mat 203. The fringes 225 increase the surface area of the cleaning pad 28 and improve dust adhesion.



FIGS. 19-21 illustrate another preferred embodiment of the cleaning pad 28 wherein the fiber mat 203 is formed by superimposing two or more fiber mats 203a 203b constructed from different types of constituent fibers, different fiber sizes or different colors. Superimposing the various fiber mats provides for a cleaning pad 28 having different properties. In one preferred embodiment, a fiber mat 203a with thicker fibers alternates with a fiber mat 203b of thinner fibers. For example a fiber mat with a size of 0.01-0.05 mm is preferred in the thin mat 203a and a fiber mat with a size of 0.06 mm-0.3 mm is preferred for the thick mat 203b. In addition, it is preferable to use a fiber with high stem strength such as polypropylene or nylon for the thick fiber mat 203b. The thick fiber mat 203b is preferably constructed from bunched fibers formed by splitting drawn polypropylene tape in the direction of drawing. The thick polypropylene fiber mat 203b is preferably only bonded only at the central bonding line 204 to the preferred thin mat 203b formed from bi-component tow fiber consisting of a polypropylene core and a polyethylene outer surface. Thus, as illustrated in FIG. 21, the thick fiber mat 203b hangs freely from the cleaning pad 28. As a result, the fiber pad appears bulkier or fluffier.


The dual fiber mat 203 may be produced by laminating the thin sheet 203a to the base sheet 202 as described in reference to FIGS. 14-17. The thick fiber mat 203b is then layered over the thin fiber mat 203a and bonded along the center bonding line 204.


Although the layering of alternative fibers in the fiber mat can be carried out in a variety of ways, in the illustrated embodiment the thick fibers 203b are on the exterior (on the side of the surface to be cleaned). This arrangement works particularly well for cleaning surfaces or appliances that include fine gaps such as a computer keyboard. The thin fibers 203a do not have body, and so they tend not to enter into the gaps. In contrast, however, the thick fibers 203b exhibit greater stem strength, and as a result they more easily enter into the gaps, allowing dust, dirt and other foreign matter to be lifted off the surface to be cleaned. In addition, thick fibers 203b serve to prevent entanglement of the narrow fibers and as well as provide a rougher surface to remove debris stuck to a surface.


In the illustrated embodiment, the length of the thick fiber mat 203b in the lengthwise direction of the fibers is preferably somewhat shorter than the length of the thin fiber mat 203a, but the lengths may vary depending on the application.



FIGS. 22-24 illustrate another preferred embodiment of the cleaning pad 28, or more particularly the retaining sheet. The retaining sheet 221 of cleaning pad 28 is produced by laminating two sheets of non-woven cloth 221a and 221b, heat-sealing and bonding the center and three sides, to define an insertion opening 223. A sack-form retaining part 222 consisting of a space for inserting and retaining the attachment members 108a, 108b is formed between the two non-woven cloths 221a and 221b.


As illustrated in FIG. 23, the insertion opening 223 of the retaining sheet 221 is formed. The retaining sheet 221 shown in FIG. 25 may alternatively be produced by folding a single non-woven cloth in two, and heat sealing prescribed locations thereof, to create an insertion opening 223. The upper nonwoven cloth 221a is formed so that it can curve freely upwards at the edge of the sealed region 228 and thus functions as a border 229 that is not bonded to the nonwoven cloth 221b underneath.


In one preferred embodiment, a colored region or other indicia 224 may be provided at the end of the border 229 indicating the orientation of the insertion region 223. Thus, when the upper nonwoven cloth 221a is made longer than the lower nonwoven cloth 221b and the border 29 is provided, insertion of the attachment members 108a, 108b can be carried out easily and smoothly.


As an alternative to providing a colored part as the indicia 224 on the border 229 of the retaining sheet 221, an embossing process can be carried out in order to provide a raised pattern at the same location. By providing indicia or on the insertion opening side 223 of the retaining sheet 221 the area where the attachment members 108 are to be inserted can be readily identified.


As illustrated in FIG. 24, the retaining sheet 221 is attached to the base sheet by 202 by applying hot-melt adhesive 227 in the center of the base sheet, and then laminating and heating the above retaining sheet 221 and base sheet by a means such as heating or compression welding. Affixing of the retaining sheet 221 to the cleaning pad 28 can be carried out using adhesive or pressure-sensitive adhesive, as well as hot melt adhesive.


Attachment of the cleaning pad to the attachment members 110 is carried out by inserting the attachment members 110a, 110b into the insertion opening 223 of the retaining sheet 221 so that it is retained in the retaining part 222. When the cleaning pad 28 becomes soiled, the arm attachment members 110 are pulled out of the insertion opening 223, a fresh cleaning pad 28 is put in place.


Due to the combination of the bonding of the fiber mat 203 at a central bonding region 204 as well as spot-bonded regions 207, and because the ends of the fibers of the fiber mat 203 in the lengthwise direction are not bonded to the base sheet 202, the fibers of the disclosed fiber mat 203 are highly napped in comparison to prior art cleaning pads, allowing the formation of a voluminous region of the fibers. This provides a significant advantage over the less voluminous cloths of the prior art. Both ends in the lengthwise direction of the fiber mat 203 of the sheet hang downwards, so that the tips of the fibers at both fiber ends are released from the base sheet and are free to move. As a result, the disclosed fiber mat 203 has superior trapping performance and retention capacity with respect to dust, dirt and various types of foreign matter relative to conventional sheets for cleaning implements in which long fiber filaments are cut and then napped at the surface or sandwiched between two carrier sheets.


The above described preferred embodiments of the cleaning pads 28 are particularly well suited for the inventive system 20 that is capable of either wet, damp or dry cleaning or dusting. Known prior art cleaning pads and more particularly dusting pads have been hydrophobic. As a result, the prior art cleaning pads are not capable of using the inventive advantages of the use of low levels of a liquid product.


The present cleaning pad allows for an inventive wet damp or dry dusting method. In particular, the inventive system 20 uses a low level of liquid product combined with a dry dusting or cleaning pad 28 to increase dust removal. In the preferred embodiment the liquid level used is between 0.01 to 0.3 g/sq.ft. Alternatively, the preferred liquid level applied to the cleaning pad is between 80 and 500 microliters. Particularly prefered is a range of between 120 to 130 microliters. As described throughout the application the liquid could be water, solvent or emulsion based intermediates.


c. Methods of Use and Methods of Cleaning

It should be appreciated from the above disclosure that the preferred cleaning tool 22, can be utilized to clean or dust a variety of surfaces. Due to the unique configuration of the tool 22, a user can conveniently alternate between wet, damp or dry cleaning or dusting. It is recognized that the component parts of the invention may be conveniently interchanged depending on the particular cleaning task at hand. For example, some of the disclosed cleaning pads 28 may be more suitable for use with some of the disclosed cleaning solutions or for dry dusting. Likewise, some cleaning pads 28 may include alternate surfaces configured for alternative cleaning tasks. Similarly, the particular cleaning solution utilized can be changed depending on the desired application.


In order to perform dry dusting, a user may obtain the above mentioned cleaning system 20 that includes the preferred cleaning tool 22. A user holds the cleaning tool 22 such that the palm of the user's hand surrounds the handle portion 24. In the preferred embodiment, the palm of a user's hand extends over the top 29 of the handle portion 24 and the user's fingers extend at least partially around the fluid reservoir 30. However, it is recognized that in performing dry dusting tasks, the fluid reservoir 30 need not be present. In the illustrated embodiment, a user's hand is typically orientated in a manner such that a user may insert his or her index finger through the hole 32 extending through handle portion 24.


Once the user obtains the tool 22, a user then places the cleaning pad 28 onto the cleaning pad support member 26. As noted above, the cleaning tool may be used with a variety of alternative cleaning pads 28. In the preferred embodiment, the sleeve-like cleaning pad 28 is mounted over the attachment members 108a, 108b so that all of the retaining tabs 112 are within the sleeves 110a, 110b. Once secured, the user then positions the cleaning pad 28 onto a surface to be cleaned and moves the cleaning pad 28 on the surface to be cleaned. The movement of the cleaning pad 28 across the surface to be cleaned causes dust or other debris to be collected by the cleaning pad 28. In the illustrated embodiment, dust or other debris is collected by the cleaning surface 111 of the cleaning pad 28. The user may, depending on the surface to be cleaned, pivot the cleaning pad support member 28 to accommodate hard to reach places. For example, if a user desires to dust an overhead lintel, the user may pivot the cleaning pad support member 26 to an angle of about 90° in relation to the handle portion 24.


A preferred dusting or cleaning pattern consists of a side to side overlapping motion starting in the upper left hand (or right hand) side of the section to be cleaned, and progressing the wiping pattern across the surface to be cleaned while continuing to use side to side wiping motions. Another preferred wipe pattern consists of an up-and-down wiping motion. The preferred wiping patterns allow the cleaning pad 28 to loosen dirt and dust, and provide a better end result. Another benefit of the above wiping patterns is minimization of streaks as a result of improved spreading of solution (in wet dusting).


It is recognized that wet dusting or cleaning can be done separately from, in conduction with or in addition to dry dusting. For example, a user may perform an initial dry dusting run and then proceed with wet dusting or cleaning. In the context of wet cleaning or dusting, similar steps are performed to those described above in the context of dry dusting. However, if necessary, the cleaning fluid reservoir 30 is initially inserted into the fluid reservoir-receiving cradle 36. The fluid reservoir 30 in inserted between the handle portion sidewalls 21a, 21b and within the two U-shaped supports or rails 44 and 46. The fluid reservoir 30 is press fit into the cradle such that the triangular retention tabs 42a, 42b frictionally engage and retain the lower sidewall 53 of the fluid reservoir 30. The reservoir should be press fit such that the first bottleneck receiving support 44 fits around the fluid reservoir 30 near the junction 59 of the second 55 and third 57 sections of the reservoir 30. The second U-shaped spray cap receiving support 46 fits around, retains and orientates the spray cap 61 of the fluid reservoir 30. The spray cap receiving support flanges 71a, 71b press fit around flats 63a, 63b of fluid reservoir spray cap 61 when the reservoir is placed within the cradle 36. The tight fit defined by flanges 71a, 71b and flats 63a, 63b serves to properly orientate spray cap 61 within the fluid reservoir-receiving cradle 36 such that spray cap 61 faces in a direction away from the cradle 36.


During wet dusting or cleaning a variety of techniques may be employed consisting of combinations of wetting the surface and moving the cleaning pad 28 across the surface to be cleaned, wetting the cleaning pad 28 and moving the cleaning pad 28 across the surface to be cleaned, or a combination of the two.



FIG. 1 illustrates the cleaning system 20 in its cleaning position that is configured for wet cleaning wherein the cleaning solution is applied diretly to the surface. As described above, in the cleaning position the cleaning pad support member 26 extends forwardly, pivot engagement tab 38 engages the cleaning position notch 102 of pivot member 82, and retention tabs 95 fit within the retention tab holes 87. In this position, the user may apply the water or other liquid housed within the fluid reservoir 30 directly onto the surface to be cleaned. The user may insert a finger through the opening 32 and depress the spray cap 61 thereby causing the discharge of the fluid housed within the reservoir 30.



FIG. 4 illustrates the cleaning system 20 in a second liquid application position. In order to move the cleaning pad support member 26 into the second liquid application position a user holds the handle portion 24 and applies torque to the cleaning pad support member 26 to move it from the cleaning position illustrated in FIG. 1. As sufficient torque is applied to overcome the forces of the inventive engagement features, the circular pivot member 82 rotates downwardly into the liquid application position. In the second liquid application position, pivot engagement tab 38 engages the liquid application notch 104 of the pivot member 82 thereby holding the cleaning pad support member 26 is its angled liquid application state. In this position, the user may apply the water or other liquid housed within the fluid reservoir 30 directly onto the cleaning surface 111 of the cleaning pad 28. As noted above, the various cleaning positions may be used interchangeably. During dusting or cleaning a user may repeatedly rotate the cleaning pad support member 26 from its cleaning position to its liquid application position as needed. During wet dusting or cleaning, the user may use the above noted cleaning pattern.


Once the cleaning or dusting has been finished, the user may remove and dispose of the cleaning pad 28 and place the cleaning system 22 into its storage position (FIG. 3). To place the cleaning system 22 into the storage position the cleaning pad support member 26 is rotated backwards such that it is generally parallel to the plane defined by the longitudinal axis of the handle portion 24.


As noted above, a variety of cleaning solutions can be used with the inventive cleaning system. In one preferred method of light cleaning or dusting a solution comprising 96.30% by weight tap water, 1% isoparaffinic hydrocarbon, 1% silicone fluid, 0.5% sorbatan laurate, 0.5% polyoxyethylene sorbitan monolaurate, 0.155 myristalkonium chloride and quaternarium 14, 0.30% takasago TN-7962 and 0.25% formaldehyde is utilized. This composition is ideally suited for dusting jobs. Use of the preferred solution with the inventive cleaning solution provides an increase in dust and allergen retention as well as providing an improved shine to the surface to be cleaned. Fingerprints, smudges and other blemishes are also easily removed.


In another preferred embodiment a cleaning solution includes 96.5125% by weight deionized water, 1.75% propan-2-ol anhydrous, 0.40% ethylene glycol monobutyl ether, 0.40% ethylene glycol n-hexyl ether, 0.125% propylene glycol, 0.10% monoethanolamine, 0.30% vinegar (white distilled 300 grain), and small amounts surfactants and other ingredients.


In another preferred embodiment, the cleaning solution includes 97% de-ionized water, 1.50% anhydrous propan-2-ol, 0.30% ethylene glycol N-hexyl ether, 0.13% industrial grade propylene glycol, 0.08% of a surfactant, 0.30% Mackam, 0.10% monoethanolamine, and small amounts surfactants and other ingredients.


In still another preferred embodiment, the cleaning solution includes 91.8% de-ionized water, 5.0% isoparaffinic hydrocarbon, 0.25% elfugin AKT, 0.15% sodium n-cocoyl sarcosinate, 2.0% silicone fluid, 0.15% sorbiatnmono oleate, 0.15% polyoxyethylene sorbitan monolaurate, 0.15% low freeze grade triethanolamine, 0.15% formeldahyde and small amounts of other ingredients.


In another embodiment, the cleaning solution includes 92.32% de-ionized water, 5% isoparafinnic hydrocarbon, 2% silicone fluid, 0.15% sorbian mono oleate, 0.15% polyoxyethylene sorbitan monolaurate, 0.03% triethanolamine, 0.15% formaldehyde and small amounts of other ingredients.


It can be important to control dosing and coverage of the cleaning solution. In one preferred embodiment, the liquid level that should be used with the preferred cleaning pad via application to the cleaning surface is between 0.01 to 0.3 g/sq.ft. Alternatively, the preferred liquid level applied directly to the cleaning pad is between 80 and 500 microliters. Particularly prefered is a range of between 120 to 130 microliters. For best results, the product is applied at the above-recommended doses, onto the surface to be treated or onto the cleaning pad 28 and the cleaning pad 28 is then moved across the surface collecting dust and absorbing the cleaning solution if applied directly to the cleaning surface. Instructions for use of the cleaning system may include pictures and/or words detailing preferred application pattern and dosing. As noted above, the preferred composition of this invention is mild and minimizes harm to most surfaces.


As noted above, in the context of wet dusting, the cleaning solution can be distributed using the fluid reservoir 30. Optionally, for increased convenience, additional compositions can be delivered in the form of a pre-moistened cleaning pad 28.


Optionally, and most preferably, convenience and performance can be maximized by using a system composed of a disposable cleaning pad 28 as described hereinbefore. The pad can be composed of any one of the alternative cleaning pads 28 described above.


This cleaning system 22 and method of use provides multiple benefits versus conventional cleaning modes. It reduces time to clean or dust, because the cleaning pad retains a greater amount of dust and the preferred cleaning solution removes fingerprints smudges and other surface marks. It eliminates the need to carry a separate dusting or cleaning solution. Due to the high absorbency of the pad, especially when used in conjunction with the preferred cleaning solution, the pad absorbs and locks away dirt and dust, such that a single pad 28 can clean large surface areas.


Additionally, since a fresh pad 28 may be used every time, germs and dirt are trapped, removed and thrown away, promoting better hygiene. Conventional dusting tools, which are re-usable, can harbor dirt and germs, which can be spread throughout the household. Through operator-controlled dosing and more efficient removal of dirt and dust, a better end result is also achieved.


Additionally, because the cleaning process involves use of low levels of solution in contact with the surface to be cleaned for much shorter periods of time relative to conventional cleaning systems, (e.g. the multiple steps of applying a separate cleaning solution and grabbing a cleaning tool are combined in the present invention), the system and method provide improved surface safety on delicate surfaces.


The cleaning pads 28 are versatile in that they can be used for multiple cleanings and multiple surfaces. Each pad is designed to clean at least one average size surface with an average debris or dust load. Pads can be changed sooner if surfaces are larger than average, or especially dirty. To determine if the pad needs changing, look at the back of the cleaning surface of the cleaning pad and ascertain if the cleaning surface is saturated with dust and/or dirt.


To maximize the synergy between the various cleaning, and dusting tasks, the present methods can be carried out using several varying executions and instructions for use. In one embodiment, a kit can be provided that has multiple cleaning pads and solutions for different cleaning tasks. One solution and cleaning pad could be used for surface cleaning and another solution and pad for dusting. The kit may be sold separately with advertising and instructions in each kit being used to explain the benefits of using the various products together.


It is understood that the component parts of the inventive system 20 described above may be manufactured and sold separately or together in the form of a cleaning system or kit. It should be further understood the present invention contemplates a variety of additional alternative configurations and component parts which may be attached within the pivot member receiving cavity 50 of the handle portion 24. A wide variety of alternative interchangeable cleaning implements may be substituted for the cleaning pad support member 26 described above. The alternative cleaning implements would preferably include a support member with a modular design which includes a universal pivot member or other attachment member similar to that described in the preferred embodiment such that the alternative implements could be used interchangeably with the preferred handle portion 24. For example, alternative cleaning implements include but are not limited to a squeegee for cleaning windows, mirrors or other glass structures, a soft surface cleaner such as a lint roller, a glass cleaner including an indexing refill roll, an insect swatter, a dog brush or other grooming implement, a scrub brush or other cleaning implement etc. Numerous other pivotally or movably attached cleaning implements are also within the scope of the present invention.


Furthermore, although the preferred embodiment illustrates a handle portion 24 pivotally attached to a cleaning pad support 26, it is recognized that the present invention is in no way limited to such a construction. For example, the inventive cleaning system 20 could be constructed as a single non-movable piece allowing only surface spraying of the cleaning fluid. Likewise, the cleaning pad support need not be pivotally attached to the handle portion as described in the preferred embodiment. Numerous alternative embodiments that allow for movement of the cleaning pad support 26 in relation to the handle portion are within the scope of the invention. The cleaning pad support member 26 and handle portion 24 may alternatively be slidably connected, hingedly connected, bendable or otherwise movable into its various desired orientations. A spring loaded lock switch could be used to allow 180° rotation of the cleaning pad support member 26. The cleaning pad support member 26 could include a centrally located pivot member to allow for 360° rotation. Alternatively, the handle portion could be rotatable 360° in relation to the cleaning pad support member 26. Additionally, the handle portion 24 could include an integral or attachable telescoping extension to allow for dusting or cleaning areas outside of a normal user's reach.


Additionally, the handle portion as described could be eliminated completely and the fluid reservoir could be arranged to form the handle of the cleaning system. The pivotable attachment member could be attached to the upper end of the fluid reservoir. Further, although the spray bottle described herein is a physically separate module, it will be manifest that the spray bottle may be directly integrated into, or form the handle portion with which it is associated. The reservoir could have a plug that could be removed when filling with fluid.


The cleaning pad support could alternatively be connected to the handle portion via a threaded connection. Such an orientation would allow for the ease of attachment and removal of the numerous alternative cleaning implements that are within the scope of the present invention. The cleaning pad support could also be alternatively arranged to rotate in either a vertical or horizontal direction to accommodate various cleaning functions. The cleaning system could further include a motorized spinning head for additional efficacy and less effort on behalf of the consumer.


Although the cleaning fluid delivery system has been described in reference to the fluid reservoir, it is recognized that alternative configurations for delivering cleaning fluid to a surface to be cleaned or to a cleaning media are also within the scope of the present invention. For example, the fluid reservoir could be arranged in a manner such the cleaning fluid is sprayed or applied on the back surface of a cleaning pad or cloth and allowed to move through the cloth via a wicking action. Alternatively, the attachment members or tines 108a, 108b of the cleaning system could be in fluid communication with the cleaning fluid reservoir such that cleaning fluid may be discharged on a cleaning pad 28 via the attachment members 108a, 108b. Such a delivery system could deliver cleaning fluid through the tip, bottom, top or lateral sides of the attachment members. Alternatively, the liquid delivery system could include a flip out nozzle or reservoir configured for spraying cleaning fluid onto the cleaning media. Such a configuration would eliminate the need for a pivoting support member.


Although the best mode contemplated by the inventors of carrying out the present invention is disclosed above, practice of the present invention is not limited thereto. It will be manifest that various additions, modifications and rearrangements of the features of the present invention may be made without deviating from the spirit and scope of the underlying inventive concept.


Moreover, as noted throughout the application the individual components need not be formed in the disclosed shapes, or assembled in the disclosed configuration, but could be provided in virtually any shape, and assembled in virtually any configuration, so as to provide for a cleaning system that includes a cleaning fluid reservoir attached to cleaning implement support. Furthermore, all the disclosed features of each disclosed embodiment can be combined with, or substituted for, the disclosed features of every other disclosed embodiment except where such features are mutually exclusive.


It is intended that the appended claims cover all such additions, modifications and rearrangements. Expedient embodiments of the present invention are differentiated by the appended claims.

Claims
  • 1. A cleaning device comprising: a curved handle having an interior space;a cleaning implement support member attachable to the handle; anda cleaning implement releasably attachable to the cleaning implement support member;wherein the cleaning implement comprises:a base sheet;a retaining sheet bonded to one side of the base sheet; anda fiber mat bonded to a side of the base sheet opposite the retaining sheet, the fiber mat comprising a first set of fibers bonded to the base sheet only by a central bonding line and a second set of fibers bonded to the base sheet by the central bonding line and at least one of a plurality of spot bonds that are arranged intermittently in a non-continuous fashion.
  • 2. The cleaning device of claim 1, wherein for the second set of fibers, the distance between the at least one spot bond and an end of the second set of fibers is between about 10 mm and about 40 mm.
  • 3. The cleaning device of claim 2, wherein the spots are spaced apart by a distance of between about 5 mm and about 50 mm.
  • 4. The cleaning device of claim 3, wherein the plurality of spot bonds defines a discontinuous line that is substantially parallel to the central bonding line.
  • 5. The cleaning device of claim 1, wherein each of the spot bonds has a width of between about 0.5 mm and about 5 mm, and a length of between about 2 mm and about 15 mm and wherein the spot bonds form a discontinuous line that is between about 10-40 mm from the nearest edge of the base sheet.
  • 6. The cleaning device of claim 1, wherein the handle is constructed from a translucent material.
  • 7. The cleaning device of claim 1, wherein the handle is ergonomically configured to fit within the hand of a user.
  • 8. The cleaning device of claim 1, wherein the handle further comprises a rounded bottom surface.
  • 9. The cleaning device of claim 1, wherein the interior space may receive a fluid source to selectively apply cleaning fluid to at least one of: a surface to be cleaned and directly to the fibers of the cleaning implement.
  • 10. The cleaning device of claim 1, wherein a portion of a cross section of the handle is rounded.
  • 11. The cleaning device of claim 1, wherein the cleaning support member is rotatably attached to the handle.
  • 12. The cleaning device of claim 1, wherein the cleaning support member is rotatably attached to the handle,wherein the handle is constructed of translucent material,wherein the handle has a hole therein and has a rounded bottom surface, andwherein the interior space may receive a fluid source to selectively apply cleaning fluid to at least one of: a surface to be cleaned and the fibers of the cleaning implement.
  • 13. The cleaning device of claim 1, wherein a fragrance is added to the cleaning implement.
  • 14. A cleaning implement comprising: a base sheet;a retaining sheet bonded to one side of the base sheet; anda fiber mat bonded to a side of the base sheet opposite the retaining sheet, the fiber mat comprising a first set of fibers bonded to the base sheet only by a central bonding line and second set of fibers bonded to the base sheet by the central bonding line and by a bond positioned between the central bonding line and an edge of the base sheet, wherein the first set of fibers and second set of fibers are adjacent the base sheet.
  • 15. A cleaning implement comprising: a base sheet;a retaining sheet bonded to one side of the base sheet by a central bonding line and by a bond positioned between the central bonding line and an edge of the base sheet;a sleeve between the base sheet and retaining sheet; anda fiber mat bonded to a side of the base sheet opposite the retaining sheet, the fiber mat comprising a first set of fibers bonded to the base sheet only by the central bonding line and a second set of fibers bonded to the base sheet by the central bonding line and by the bond positioned between the central bonding line and an edge of the base sheet, wherein the first set of fibers and second set of fibers are adjacent the base sheet.
  • 16. The cleaning implement of claim 15, wherein the plurality of spot bonds is arranged in a line substantially parallel to the central bonding line.
  • 17. The cleaning implement of claim 16, wherein the retaining sheet is bonded to the base sheet by the central bonding line and by the plurality of spot bonds to form a sleeve between the retaining sheet and the base sheet.
  • 18. The cleaning implement of claim 14, wherein the central bonding line and the bond define a sleeve formed between the retaining sheet and the base sheet.
  • 19. The cleaning implement of claim 14, wherein a surface of the fiber mat adjacent the base sheet is comprised of fibers in the first set and fibers in the second set.
  • 20. The cleaning implement of claim 19, wherein a surface of the fiber mat opposite the surface of the fiber mat adjacent the base sheet is comprised only of fibers in the first set.
  • 21. The cleaning implement of claim 1, wherein the central bonding line and the spot bonds bond the retaining sheet to the base sheet to define two sleeves for receiving the cleaning implement support member.
  • 22. The cleaning device of claim 15, wherein a fragrance is added to the cleaning implement.
  • 23. A cleaning implement comprising: a base sheet;a retaining sheet bonded to one side of the base sheet by a central bonding line and a plurality of spot bonds to form a sleeve between the retaining sheet and the base sheet;a fiber mat bonded to a side of the base sheet opposite the retaining sheet by the central bonding line and by the plurality of spot bonds;wherein the fiber mat comprises: a first set of fibers that is bonded to the base sheet only by the central bonding line, anda second set of fibers that is bonded to the base sheet by the central bonding line and by the plurality of spot bonds,wherein the first set of fibers is interspersed with the second set of fibers along the length of the base sheet.
  • 24. The cleaning device of claim 23, wherein a fragrance is added to the cleaning implement.
CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation-in-part of U.S. patent application Ser. No. 11/045,204, filed Jan. 28, 2005, now abandoned the entirety of which is incorporated by reference herein.

US Referenced Citations (218)
Number Name Date Kind
781814 D'Ossone Feb 1905 A
782669 Lea Feb 1905 A
823725 Hayden Jun 1906 A
1250150 DuBois Dec 1917 A
1313184 Hayden Aug 1919 A
1437145 Johnson Nov 1922 A
1542108 Taylor Jun 1925 A
1637595 Sturgis Aug 1927 A
1722162 Teetsell Jul 1929 A
1804415 Hales May 1931 A
1978748 Gregory Oct 1934 A
2037135 Johnson et al. Apr 1936 A
2047199 Gewalt Jul 1936 A
2068162 Borchers Jan 1937 A
2147769 Epstein Feb 1939 A
2151425 Gregory Mar 1939 A
2185873 Underhill Jan 1940 A
2262888 Dodge Nov 1941 A
2679064 Palma, Jr. et al. May 1954 A
2755498 Park Jul 1956 A
2877482 Roy Jul 1957 A
2808605 Licata Oct 1957 A
2816313 Beck et al. Dec 1957 A
2862217 Small et al. Dec 1958 A
2935754 Abdo May 1960 A
3066344 Borras et al. Dec 1962 A
3196475 Brown Jul 1965 A
3221356 Schirmer Dec 1965 A
3406694 Odence Oct 1968 A
3505155 Balch et al. Apr 1970 A
3525113 Leland Aug 1970 A
3528076 Anderson Sep 1970 A
3605882 Thomas Mar 1972 A
3655501 Tesch Apr 1972 A
3687797 Wideman Aug 1972 A
3760450 Griffin et al. Sep 1973 A
3822435 Moss Jul 1974 A
3965518 Muoio Jun 1976 A
3979163 Beard Sep 1976 A
4010511 Komatsu Mar 1977 A
4018646 Ruffo et al. Apr 1977 A
4041203 Brock et al. Aug 1977 A
4114224 Disko Sep 1978 A
4196245 Kitson et al. Apr 1980 A
4254738 Stanley Mar 1981 A
4298649 Meitner Nov 1981 A
4309469 Varona Jan 1982 A
4313774 Arthur Feb 1982 A
4376147 Byrne et al. Mar 1983 A
4377615 Suzuki et al. Mar 1983 A
D268967 Sami May 1983 S
D268968 Sami May 1983 S
4426417 Meitner et al. Jan 1984 A
4432472 Lamm Feb 1984 A
4436780 Hotchkiss et al. Mar 1984 A
4469734 Minto et al. Sep 1984 A
4469735 Trokhan Sep 1984 A
4473918 Moss et al. Oct 1984 A
4487795 Yasuda et al. Dec 1984 A
4510640 Omori Apr 1985 A
4546029 Cancio et al. Oct 1985 A
4601938 Deacon et al. Jul 1986 A
4609518 Curro et al. Sep 1986 A
4623575 Brooks et al. Nov 1986 A
4685167 Murray Aug 1987 A
4705420 Bokmiller et al. Nov 1987 A
4710185 Sneyd, Jr. et al. Dec 1987 A
4713274 Minor Dec 1987 A
4776716 Huang Oct 1988 A
4788735 Fuk Fan Dec 1988 A
4802782 Scalf Feb 1989 A
4806037 Berglund Feb 1989 A
4829622 O'Sullivan May 1989 A
4859519 Cabe, Jr. et al. Aug 1989 A
4906513 Kebbell et al. Mar 1990 A
4926515 Lynn et al. May 1990 A
4954001 Billat Sep 1990 A
4983060 Steinbach Jan 1991 A
4991362 Heyer et al. Feb 1991 A
4995133 Newell Feb 1991 A
5039431 Johnson et al. Aug 1991 A
5062729 Yamamoto Nov 1991 A
5071489 Silvenis et al. Dec 1991 A
5141348 'tartt Aug 1992 A
5143774 Cancio et al. Sep 1992 A
5229191 Austin Jul 1993 A
5427838 Yamamoto et al. Jun 1995 A
5429854 Currie et al. Jul 1995 A
5452491 Thompson Sep 1995 A
5466318 Bjork Nov 1995 A
5477582 Yamashita Dec 1995 A
5525397 Shizuno et al. Jun 1996 A
5572763 Eguchi Nov 1996 A
5573719 Fitting Nov 1996 A
5603139 Alazet Feb 1997 A
5613263 Nolte Mar 1997 A
5715560 Banicki Feb 1998 A
D391711 Hanaoka et al. Mar 1998 S
5722966 Christon et al. Mar 1998 A
5735620 Ford Apr 1998 A
5769324 Lenhart Jun 1998 A
5779155 Schennum et al. Jul 1998 A
5815878 Murakami et al. Oct 1998 A
5839150 Miyaoka Nov 1998 A
5842488 Belleau et al. Dec 1998 A
5845361 Murakami et al. Dec 1998 A
5865551 Lalli et al. Feb 1999 A
5888006 Ping et al. Mar 1999 A
5895504 Sramek et al. Apr 1999 A
5908255 Branch Jun 1999 A
5953784 Suzuki et al. Sep 1999 A
5958555 Takeuchi et al. Sep 1999 A
5960508 Holt et al. Oct 1999 A
5962112 Haynes et al. Oct 1999 A
5980673 Takeuchi et al. Nov 1999 A
6013349 Takeuchi et al. Jan 2000 A
6047435 Suzuki et al. Apr 2000 A
6054202 Takeuchi et al. Apr 2000 A
6119298 Kenmochi Sep 2000 A
6142750 Benecke Nov 2000 A
6143393 Abe et al. Nov 2000 A
6202246 Boucher Mar 2001 B1
6202250 Kenmochi et al. Mar 2001 B1
6206058 Nagel et al. Mar 2001 B1
6241835 Abe et al. Jun 2001 B1
6245413 Kenmochi et al. Jun 2001 B1
6298517 McKay Oct 2001 B1
6305046 Kingry et al. Oct 2001 B1
6309731 Takeuchi et al. Oct 2001 B1
6315478 Atkins Nov 2001 B1
6329308 Kenmochi et al. Dec 2001 B1
6361638 Takai et al. Mar 2002 B2
6405403 McKay Jun 2002 B1
6406206 Girardot et al. Jun 2002 B1
6506472 Tanaka et al. Jan 2003 B1
6513184 Brown et al. Feb 2003 B1
6540424 Hall et al. Apr 2003 B1
6551001 Aberegg et al. Apr 2003 B2
6554937 Kenmochi et al. Apr 2003 B1
6557178 Hoover May 2003 B1
6572602 Furuya et al. Jun 2003 B2
6651290 Kingry et al. Nov 2003 B2
6669391 Policicchio et al. Dec 2003 B2
6672313 Battaglia et al. Jan 2004 B2
6681434 Smith Jan 2004 B2
6687942 Pember Feb 2004 B1
6687944 Young Feb 2004 B2
6716514 Nissing Apr 2004 B2
6722806 Kunkler et al. Apr 2004 B2
6742717 Aberegg et al. Jun 2004 B2
6742951 Schultz et al. Jun 2004 B2
6750187 Alam et al. Jun 2004 B2
6758412 Aberegg et al. Jul 2004 B2
6777064 Brown et al. Aug 2004 B1
6794351 Shick et al. Sep 2004 B2
6807702 Keck et al. Oct 2004 B2
6810554 McKay Nov 2004 B2
6813801 Tanaka et al. Nov 2004 B2
6815502 Lang et al. Nov 2004 B1
6828014 Branham et al. Dec 2004 B2
6828290 Evers et al. Dec 2004 B1
6835678 Jackson et al. Dec 2004 B2
6851881 Slaboden Feb 2005 B2
6855790 Chang et al. Feb 2005 B2
6887807 Matsushita et al. May 2005 B1
6953299 Wang et al. Oct 2005 B2
6960042 Hsiao Nov 2005 B1
6968591 Tanaka Nov 2005 B2
6978509 Lin Dec 2005 B2
7241413 Pfenniger et al. Jul 2007 B2
7427434 Busam et al. Sep 2008 B2
20020132098 Miyazawa et al. Sep 2002 A1
20020147122 Shick et al. Oct 2002 A1
20020148061 Tanaka et al. Oct 2002 A1
20030000039 Borcherds Jan 2003 A1
20030074756 Policicchio et al. Apr 2003 A1
20030106568 Keck et al. Jun 2003 A1
20030126710 Policicchio et al. Jul 2003 A1
20030159223 Plankenhorn Aug 2003 A1
20030180083 Hall et al. Sep 2003 A1
20030182751 White Oct 2003 A1
20030194259 Kunkler et al. Oct 2003 A1
20030200991 Keck et al. Oct 2003 A1
20030211802 Keck et al. Nov 2003 A1
20030233718 Heathcock et al. Dec 2003 A1
20030235463 Neumann et al. Dec 2003 A1
20040016074 Tanaka Jan 2004 A1
20040022575 Hall et al. Feb 2004 A1
20040034956 Tanaka et al. Feb 2004 A1
20040086320 Policicchio et al. May 2004 A1
20040141797 Garabedian et al. Jul 2004 A1
20040141798 Garabedian, Jr. et al. Jul 2004 A1
20040144406 Garabedian et al. Jul 2004 A1
20040178224 Fahy et al. Sep 2004 A1
20040184867 Wang et al. Sep 2004 A1
20040216771 Hall et al. Nov 2004 A1
20040226123 Policicchio et al. Nov 2004 A1
20050000050 Galvin et al. Jan 2005 A1
20050004546 Mizutani et al. Jan 2005 A1
20050016035 Kobayashi et al. Jan 2005 A1
20050039285 Tanaka et al. Feb 2005 A1
20050085407 Oldenhove et al. Apr 2005 A1
20050097691 Tsuchiya et al. May 2005 A1
20050097695 Tanaka et al. May 2005 A1
20050097696 Tanaka et al. May 2005 A1
20050102781 Tsuchiya et al. May 2005 A1
20050132521 Tanaka et al. Jun 2005 A1
20050136775 Tanaka Jun 2005 A1
20050137555 Mizutani et al. Jun 2005 A1
20050144747 Juan Jul 2005 A1
20050177967 Tanaka et al. Aug 2005 A1
20050188490 Tanaka et al. Sep 2005 A1
20050193513 Tanaka et al. Sep 2005 A1
20050193514 Tanaka et al. Sep 2005 A1
20050198760 Tanaka et al. Sep 2005 A1
20050202190 Ledger et al. Sep 2005 A1
20050221070 Bando et al. Oct 2005 A1
20060171767 Hoadley et al. Aug 2006 A1
Foreign Referenced Citations (296)
Number Date Country
2 384 357 Mar 2002 CA
2492582 Jan 2004 CA
152201 Apr 1932 CH
279 352 Oct 1913 DE
827344 Jan 1952 DE
1 771 672 Aug 1958 DE
43 30 357 Oct 1995 DE
295 16 181 Oct 1995 DE
297 01 349 Jan 1997 DE
196 30 522 Feb 1998 DE
0 097 036 Dec 1983 EP
0 399 495 Nov 1990 EP
0 468 301 Jan 1992 EP
0 739 600 Oct 1996 EP
0 774 229 May 1997 EP
0 777 997 Jun 1997 EP
0 848 927 Jun 1998 EP
0 863 240 Sep 1998 EP
0 864 289 Sep 1998 EP
0 943 425 Sep 1999 EP
0 945 251 Sep 1999 EP
0 959 164 Nov 1999 EP
0 968 677 Jan 2000 EP
0 968 677 Jan 2000 EP
0 872 206 Jul 2000 EP
1 095 763 May 2001 EP
1 147 734 Oct 2001 EP
0 986 322 Dec 2001 EP
0 841 879 Mar 2002 EP
1 021 121 Jun 2002 EP
1 211 342 Jun 2002 EP
1 212 972 Jun 2002 EP
1 222 915 Jul 2002 EP
0 865 755 May 2003 EP
1 314 390 May 2003 EP
0 923 902 Jul 2003 EP
0 983 014 Dec 2003 EP
1 213 230 Jan 2005 EP
1 498 028 Jan 2005 EP
1 250 220 Apr 2005 EP
1 523 919 Apr 2005 EP
1 523 920 Apr 2005 EP
1 523 921 Apr 2005 EP
1 523 922 Apr 2005 EP
1 523 923 Apr 2005 EP
1 523 924 Apr 2005 EP
1 523 925 Apr 2005 EP
1 537 819 Jun 2005 EP
1 547 513 Jun 2005 EP
1 302 146 Jul 2005 EP
1 550 395 Jul 2005 EP
1 552 890 Jul 2005 EP
1 554 967 Jul 2005 EP
1 566 135 Aug 2005 EP
1 591 053 Nov 2005 EP
1 591 575 Nov 2005 EP
2 369 560 Jun 2002 GB
2 395 680 Jun 2004 GB
2414654 Dec 2005 GB
39-6833 Mar 1939 JP
60-63157 May 1985 JP
04250130 Sep 1992 JP
04288113 Oct 1992 JP
04312430 Nov 1992 JP
05025763 Feb 1993 JP
05056902 Mar 1993 JP
05115403 May 1993 JP
05192285 Aug 1993 JP
05245090 Sep 1993 JP
05285435 Nov 1993 JP
06014858 Jan 1994 JP
06014859 Jan 1994 JP
06017356 Jan 1994 JP
06162712 Jun 1994 JP
06182310 Jul 1994 JP
07011269 Jan 1995 JP
07169098 Jul 1995 JP
07184815 Jul 1995 JP
07254169 Oct 1995 JP
08043272 Feb 1996 JP
08092530 Apr 1996 JP
08133290 May 1996 JP
08187210 Jul 1996 JP
08243065 Sep 1996 JP
08291456 Nov 1996 JP
08293180 Nov 1996 JP
08297949 Nov 1996 JP
08302314 Nov 1996 JP
08302550 Nov 1996 JP
09038009 Feb 1997 JP
09055055 Feb 1997 JP
09055056 Feb 1997 JP
09098920 Apr 1997 JP
09131288 May 1997 JP
09135798 May 1997 JP
09140650 Jun 1997 JP
09154519 Jun 1997 JP
09154791 Jun 1997 JP
09188950 Jul 1997 JP
09224895 Sep 1997 JP
09253017 Sep 1997 JP
09255679 Sep 1997 JP
09273061 Oct 1997 JP
09276193 Oct 1997 JP
09319305 Dec 1997 JP
09322876 Dec 1997 JP
09322877 Dec 1997 JP
09324354 Dec 1997 JP
10005159 Jan 1998 JP
10005164 Jan 1998 JP
10033170 Feb 1998 JP
10033343 Feb 1998 JP
10033443 Feb 1998 JP
10043115 Feb 1998 JP
10099246 Apr 1998 JP
10127547 May 1998 JP
10137168 May 1998 JP
10146306 Jun 1998 JP
10203542 Aug 1998 JP
10216060 Aug 1998 JP
10-235574 Sep 1998 JP
10237235 Sep 1998 JP
10245756 Sep 1998 JP
10262888 Oct 1998 JP
10276953 Oct 1998 JP
10286206 Oct 1998 JP
10286209 Oct 1998 JP
10328107 Dec 1998 JP
11000295 Jan 1999 JP
11019015 Jan 1999 JP
11089776 Apr 1999 JP
11156979 Jun 1999 JP
11156980 Jun 1999 JP
11156981 Jun 1999 JP
11241099 Sep 1999 JP
11269750 Oct 1999 JP
11276401 Oct 1999 JP
11276402 Oct 1999 JP
11302688 Nov 1999 JP
11318789 Nov 1999 JP
11332777 Dec 1999 JP
11332778 Dec 1999 JP
2000034663 Feb 2000 JP
2000083883 Mar 2000 JP
20000166841 Jun 2000 JP
2000210238 Aug 2000 JP
20000212879 Aug 2000 JP
2000254088 Sep 2000 JP
2000254089 Sep 2000 JP
20000245670 Sep 2000 JP
2000296084 Oct 2000 JP
2001003094 Jan 2001 JP
2001059098 Mar 2001 JP
2001190487 Jul 2001 JP
2001198065 Jul 2001 JP
2001198066 Jul 2001 JP
2001269300 Oct 2001 JP
2001275875 Oct 2001 JP
2001299658 Oct 2001 JP
2001299659 Oct 2001 JP
2001310168 Nov 2001 JP
2001354238 Dec 2001 JP
2002000645 Jan 2002 JP
2002119451 Apr 2002 JP
2002119929 Apr 2002 JP
2002145367 May 2002 JP
2002165742 Jun 2002 JP
2002191536 Jul 2002 JP
2002233486 Aug 2002 JP
2002240179 Aug 2002 JP
2002253459 Sep 2002 JP
2002306389 Oct 2002 JP
2002315704 Oct 2002 JP
2002363509 Dec 2002 JP
2002369783 Dec 2002 JP
2003000234 Jan 2003 JP
2003024254 Jan 2003 JP
2003111701 Apr 2003 JP
2003111703 Apr 2003 JP
2003111704 Apr 2003 JP
2003164402 Jun 2003 JP
2003164407 Jun 2003 JP
2003164408 Jun 2003 JP
2003190074 Jul 2003 JP
2003199698 Jul 2003 JP
2003204911 Jul 2003 JP
2003238394 Aug 2003 JP
2003261899 Sep 2003 JP
2003265387 Sep 2003 JP
2003265391 Sep 2003 JP
2003284660 Oct 2003 JP
2003319898 Nov 2003 JP
2004033237 Feb 2004 JP
2004033238 Feb 2004 JP
2004049605 Feb 2004 JP
2004057242 Feb 2004 JP
2004057244 Feb 2004 JP
2004065387 Mar 2004 JP
2004089288 Mar 2004 JP
2004141369 May 2004 JP
2004167274 Jun 2004 JP
2004208917 Jul 2004 JP
2004208939 Jul 2004 JP
2004208941 Jul 2004 JP
2004223022 Aug 2004 JP
2004223692 Aug 2004 JP
2004237023 Aug 2004 JP
2004275605 Oct 2004 JP
2004298650 Oct 2004 JP
2004351070 Dec 2004 JP
2005006778 Jan 2005 JP
2005007094 Jan 2005 JP
2005021709 Jan 2005 JP
2005040641 Feb 2005 JP
2005046645 Feb 2005 JP
2005087506 Apr 2005 JP
2005095643 Apr 2005 JP
2005095665 Apr 2005 JP
2005111284 Apr 2005 JP
2005118392 May 2005 JP
2005124857 May 2005 JP
2005131422 May 2005 JP
2005137603 Jun 2005 JP
2005137929 Jun 2005 JP
2005137930 Jun 2005 JP
2005137931 Jun 2005 JP
2005143523 Jun 2005 JP
2005144111 Jun 2005 JP
2005144198 Jun 2005 JP
2005144199 Jun 2005 JP
2005160721 Jun 2005 JP
2005168711 Jun 2005 JP
2005169096 Jun 2005 JP
2005169148 Jun 2005 JP
2005199077 Jul 2005 JP
200615164 Jan 2006 JP
WO 9749326 Dec 1997 WO
WO 9852458 Nov 1998 WO
WO 9907272 Feb 1999 WO
WO 9907273 Feb 1999 WO
WO 9923291 May 1999 WO
WO 9937842 Jul 1999 WO
WO 0008998 Feb 2000 WO
WO 0053407 Sep 2000 WO
WO 0122861 Apr 2001 WO
WO 0140558 Jun 2001 WO
WO 0141622 Jun 2001 WO
WO 0145616 Jun 2001 WO
WO 0152713 Jul 2001 WO
WO 0171081 Sep 2001 WO
WO 0180705 Nov 2001 WO
WO 0185452 Nov 2001 WO
WO 0192622 Dec 2001 WO
WO 0200819 Jan 2002 WO
WO 0203847 Jan 2002 WO
WO 0234101 May 2002 WO
WO 0238027 May 2002 WO
WO 0238846 May 2002 WO
WO 0241745 May 2002 WO
WO 0243536 Jun 2002 WO
WO 0245564 Jun 2002 WO
WO 02053694 Jul 2002 WO
WO 02065887 Aug 2002 WO
WO 02091900 Nov 2002 WO
WO02102221 Dec 2002 WO
WO 03000165 Jan 2003 WO
WO 03001962 Jan 2003 WO
WO 03004748 Jan 2003 WO
WO 03039321 May 2003 WO
WO 03059139 Jul 2003 WO
WO 03070080 Aug 2003 WO
WO 03093557 Nov 2003 WO
WO 03099517 Dec 2003 WO
WO 2004020725 Mar 2004 WO
WO 2004022832 Mar 2004 WO
WO 2004044298 May 2004 WO
WO 2004048047 Jun 2004 WO
WO 2004060130 Jul 2004 WO
WO 2004061185 Jul 2004 WO
WO 2004061187 Jul 2004 WO
WO 2004064590 Aug 2004 WO
WO 2004073479 Sep 2004 WO
WO 2005002842 Jan 2005 WO
WO 2005065517 Jul 2005 WO
WO 2005099552 Oct 2005 WO
WO 2005100520 Oct 2005 WO
WO 2005100521 Oct 2005 WO
WO 2005100523 Oct 2005 WO
WO 2005100526 Oct 2005 WO
WO 2005100527 Oct 2005 WO
WO 2005103217 Nov 2005 WO
WO 2005103218 Nov 2005 WO
WO 2005103244 Nov 2005 WO
WO 2005103354 Nov 2005 WO
WO 2005103355 Nov 2005 WO
WO 2005103357 Nov 2005 WO
Related Publications (1)
Number Date Country
20060171764 A1 Aug 2006 US
Continuation in Parts (1)
Number Date Country
Parent 11045204 Jan 2005 US
Child 11124527 US