Field of the Invention
The invention relates to textile cleaning and in particular to stain removing devices and methods for cleaning clothing, fabric and other textiles.
Related Art
Various patents describe apparatus directed to removing stains on clothing through mechanical means and chemicals. These patents generally disclose the concept of applying a cleaning fluid to a stained area to remove a stain. The cleaning fluid may be water or water with some chemical agents such as detergents. Movement of the fabric causes the cleaning fluid to be absorbed by the fabric to lift a stain. Rinsing away or otherwise removing the cleaning fluid after the cleaning agent has lifted some of the staining material completes the cleaning process.
U.S. Pat. No. 656,802 describes a piston system where a fluid is manually pushed through a stained fabric. U.S. Pat. No. 2,552,853 describes a syringe apparatus that forces fluid through a stained fabric while keeping the wet area to a minimum size. U.S. Pat. No. 4,120,180 describes a vacuum cleanser having an applicator that applies cleaning fluid and suction at its nozzle to clean a particular area of fabric. U.S. Pat. No. 5,707,163 describes a stain cleaning enclosure with a brush that is operated manually. Fluid may be introduced onto scrub surface with a squeeze bottle. U.S. Pat. No. 7,536,745 describes an apparatus for spot cleaning fabric by getting a fluid to go through the stain.
Some commercial stain removers that clean small stains also exist. These products are basically chemicals that are applied on the stained area and react with the stain to make it less visible For example, TIDE TOGO instant stain remover operates in this manner. Also, U.S. Pat. No. 8,709,099 describes a fluid cleaning agent and surfactant package that is applied to a stain. In general, such solutions do not work on all stains (e.g., ketchup, oil, sauce, jam, and the like).
From the discussion that follows, it will become apparent that the present invention addresses the deficiencies associated with the prior art while providing numerous additional advantages and benefits not contemplated or possible with prior art constructions.
A stain removing device that primarily uses water pressure and flow and, optionally, detergent to clean the stain is disclosed. In general, the stain removing device comprises an enclosure that surrounds and encapsulates a stained area of fabric. The enclosure is then closed, providing a somewhat watertight volume around the stained area to prevent the remainder of the fabric from getting wet. The stain removing device is especially advantageous in circumstances where washing facilities or not convenient or available. In addition, the encapsulation of stained fabric improves drying time once cleaning is complete. The stain removing device does not require an electrical power source and may be constructed in various sizes, including portable sizes.
Various stain removing devices and methods relating to the same are disclosed herein. For instance, in one exemplary embodiment a stain removing device comprises an enclosure and a cover. The enclosure comprises a rigid portion having an orifice, a resilient portion opposite the orifice, and a detergent compartment attached to the resilient portion. The cover comprises a top end, a bottom end, and one or more water inlets at the top end. At least the bottom end of the cover has a peripheral shape that corresponds to the orifice so that the cover can enclose the enclosure.
The detergent compartment may be enclosed with a cap. The cap may comprise one or more holes, one or more protrusions or both. In addition, the detergent compartment may be formed from one or more helicoid springs. A ledge may be formed in the enclosure to engage a cover. The enclosure and the cover may be cylindrical, and the resilient portion may be dome shaped. A wall may be around the water inlets to prevent spillage when water is poured into the water inlets.
In another exemplary embodiment, a stain removing device comprises an enclosure comprising an orifice and a resilient portion, a detergent compartment within the enclosure and attached to the resilient portion, a cap at the detergent compartment, and a cover that encloses the orifice, wherein the cover is removable from the orifice.
One or more holes may be in the cap, one or more protrusions may extend from the cap or both. The detergent compartment may comprise one or more helicoid springs. In addition, the cover may comprise one or more water inlets. A ledge along an interior wall of the enclosure may be provided to engage the cover. Also, the resilient portion may be dome shaped.
In another exemplary embodiment, a method of removing a stain with a stain removing device is disclosed, with such method comprising positioning a stained area of a fabric at an orifice of an enclosure of the stain removing device, and enclosing the orifice of the enclosure with a cover. The fabric is held between the cover and a portion the enclosure when the enclosure is enclosed with the cover. The method also includes pouring water into one or more water inlets of the cover, and actuating a resilient portion of the enclosure. Actuating the resilient portion moves a detergent compartment towards and away from the stained area of the fabric to clean the stained area. The water may be poured out of the water inlets after actuating the resilient portion of the enclosure.
The fabric is typically held between a bottom edge of the cover and a ledge of the enclosure when the orifice of the enclosure is enclosed with the cover. The detergent compartment may be opened to add detergent into the detergent compartment. The detergent compartment may comprise a cap having one or more holes, one or more protrusions or both. The detergent compartment may comprise one or more helicoid springs.
Other systems, methods, features and advantages of the invention will be or will become apparent to one with skill in the art upon examination of the following figures and detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims.
The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention. In the figures, like reference numerals designate corresponding parts throughout the different views.
In the following description, numerous specific details are set forth in order to provide a more thorough description of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without these specific details. In other instances, well-known features have not been described in detail so as not to obscure the invention.
Clothing stains caused by food, drinks, or other substances are common and may occur where a washing machine is unavailable. Hand washing using tap water and soap is the relied upon. This is cumbersome, time consuming and tends to wet a large area of the clothing. In addition, such cleaning may be ineffective.
The stain removing device disclosed herein makes the stain removal process quicker and easier, and provides cleaning primarily using water pressure and flow. The stain removing device will typically clean a small area of fabric quickly and without wetting an area much larger than the stain itself. The stain removing device is especially advantageous for those away from home or away from a change of clothes.
Referring to
A water outlet 112 allows water to exit the stain removing device 104 after it has circulated through the device or has otherwise been “used.” It is contemplated that a water outlet 112 need not be very long or be connected to a drain or the like since the cleaning operation will typically occur at a sink. The water outlet 112 is dimensioned to keep enough water inside the enclosure 116 during operation so adequate cleaning can occur. In other words, a water outlet 112 may be large enough to keep water circulating, while being small enough to keep water from immediately flowing out of the enclosure without staying in contact with a stain. In some embodiments, a water outlet 112 has an increased diameter relative to the water inlet 108 to let more water out so the stain removing device 104 is not filled with water.
A detergent compartment 124 may be attached to the enclosure 116 and hold detergent, in pellet or liquid form. It is contemplated that various soaps, such as bathroom or hand soap, may be used in some embodiments. A detergent compartment 124 will typically be in fluid communication with the enclosure 116. For example, a permeable wall (e.g., a grid or mesh), one or more openings or the like may be at a proximal end of the detergent compartment 124 to permit water to mix with the detergent therein. The detergent compartment 124 may be opened to allow detergent to be placed therein. For example, a detergent compartment 124 may have a door or removable cover, or be removable from an enclosure 116. Alternatively, a detergent compartment 124 may be located in, or along, a water inlet 108, so that detergent therein is constantly exposed to the water flow during cleaning.
Referring to
As can be seen from
It is contemplated that some embodiments of the stain removing device 104 will not include an agitator 136. In such embodiments, the interior surface of an enclosure 116 may be designed to maximize the water flow at and through the stained fabric, without using a rotating agitator 136. In such embodiments, cleaning relies only upon water flow, detergent or both as there are no moving parts inside the enclosure 116.
An enclosure 116 also comprises an opening or orifice 152 that may be defined by an edge or rim 140. One or more grooves 148 may be formed along the rim 140, such as to hold one or more gaskets, O-rings or other seals 144. A corresponding cover 404, such as shown in
As can be seen, an enclosure 116 holds the rotating agitator 136 and contains the water, detergent and the stained fabric during cleaning. A cover 404 can open or close the enclosure 116. When closed, the enclosure 116 is at least somewhat water tight, while also not squeezing the fabric too tightly. A closed enclosure 116 does not need to be completely waterproof but will keep water from flowing freely to wet the fabric outside the enclosure. Alternatively or in addition, it is contemplated that a clamp may be used to press the cover 404 against the enclosure 116 to secure the cover thereto during cleaning.
The stain removing device 104 may take several forms. As shown and described above, a stain removing device 104 may have an agitator with straight blades 120. In an alternate embodiment, a stain removing device 104 may have a helicoid agitator 136, such as shown in
The embodiment of
It is noted that a water inlet 108 and water outlet 112 may be positioned relative to the axis of rotation or shaft 128 of an agitator 136 in various ways. To illustrate,
In operation, water from a water source flows into the turbine compartment 716 via a water inlet 108. The water speed in the turbine compartment 716 is maximized to create movement in the agitator compartment 720, where an agitator 136, which shaft 128 is connected to the turbine shaft 732, rubs the fabric and generates water movement. The turbine compartment 716 is typically not in contact with a stained fabric. The agitator compartment 720 is where the cleaning occurs with an agitator 136 propelled by the turbine 708. Detents, such as disclosed above, may be at the interior of each compartment 716, 720 to rotatably mount the turbine 708 and agitator 136.
Detergent may be positioned along the water path in such a way that the water reaching the fabric contains some detergent, such as via a detergent compartment as described above. An agitator compartment 720 will typically not fill with water during cleaning because its water outlet 112 is large enough to prevent water from accumulating. Partial filling of the agitator compartment 720 allows the agitator 136 therein to spin faster than it would in an enclosure 116 or compartment filled with water. Therefore, higher fabric rubbing speed is generated for cleaning purposes.
Operation of an exemplary stain removing device will now be described with regard to the flow diagram of
At a step 816, the orifice may be enclosed or capped, such as with a cover. As described above, a cover may be pushed onto or otherwise attached at the orifice to enclose the orifice. At a step 820, a water inlet may be connected to a water source, such as a faucet or tap. This may occur by inserting a distal end of the water inlet into the outlet of the water source. Typically, the stain removing device will be used at a sink to allow water exiting its water outlet to drain into the sink. Optionally however, it is contemplated that a water outlet may be connected to a drain.
At a step 824, water flow may be started, such as by activating or opening the water source. Water then flows into the enclosure via the water inlet and propels the agitator (or turbine) therein. As described above, an agitator will typically be rotatably mounted inside the enclosure. The agitator creates a regular water flow tangent to the stained fabric and may also rub the fabric gently by its rotation. Depending on the specific embodiment, an agitator may have one of these two functions, or both. If the agitator is to rub the stained fabric, its blades will typically be made of a soft flexible material with a size or shape to engage the stained fabric. Both water flow and fabric rubbing may contribute to an efficient cleaning action.
At a step 828, water flow may be stopped, such as by deactivating or closing the water source. The water flow may be stopped after a predetermined period, such as after 3 minutes of cleaning, or may be stopped as desired by a user. At a step 832, the cover may be removed to release the now cleaned fabric. Thereafter, the fabric may be dried at a step 836. Since the cover provides a seal with the enclosure, the fabric will typically dry quickly in that only a limited portion of the fabric will become wet during the cleaning process. It is noted that if, after releasing the fabric, the fabric is not cleaned to a user's satisfaction, the cleaning process may be repeated one or more additional times, such as by starting at step 804 or step 812 of the process.
Various other embodiments are contemplated as well. For instance, in another embodiment, the enclosure is made of two approximately equal size halves, and a stained fabric is captured between two similar volumes of water during cleaning. A water outlet of the first half may feed into the water inlet of the second half to create a continuous flow of water around the stained fabric without relying solely on the water flowing through the stained fabric, from one side to the other. In such embodiment, each half of the enclosure may comprise a broad and loose plastic mesh or other permeable surface very close to the stained fabric, to hold the fabric generally in place during cleaning. The enclosure halves can also contain some light plastic balls that will move with the water flow and create some mechanical movement around the stained fabric when they gently bump into the fabric. This contributes to cleaning efficiency.
In another embodiment, a battery powered electric motor may be included and used to assist turbine or agitator rotation, and therefore increase the cleaning efficiency. The motor may be switched on and off by a user, or automatically controlled by the detection of water, the closure of the enclosure or both. It is noted that the device may be constructed in various sizes to achieve various cleaning areas, such as of a square inch or less or even above 10 square inches.
Referring to
A ledge 1008 may be in the enclosure 908 to prevent a cover 904 from being inserted beyond a particular point (i.e., beyond the ledge). A ledge 1008 may also contribute to the water tightness between an enclosure 908 and its cover 904 in that a seal may be formed between the ledge 1008 and the bottom end of an inserted cover. The ledge may be wide enough to present a flat surface where cover 904 can rest.
A detergent compartment 1004 may be inside the enclosure. As can be seen, the detergent compartment 1004 may comprise a hollow cylinder where pellet, liquid or other detergent may be placed. In the embodiment of
Referring to
A cap 1104 may comprise holes 1108 to let detergent out of its detergent compartment 1004 during cleaning. The holes 1108 may also facilitate circulation of water and detergent in and out of a detergent compartment 1004. A cap's upper surface may also or alternatively comprise several small bumps, balls or other protrusions 1112 that rub a stained fabric to create mechanical movement and pressure changes for cleaning purposes.
A bottom detail view illustrating the bottom end 1220 of the cover 904 is also shown in
As stated with regard to
Water tightness around the stain 1308, which prevents additional areas of the fabric 1304 from becoming wet, may be ensured by pressure of the bottom edge 1212 against the ledge 1008. As stated, a gasket, O-ring or other seal around bottom edge 1212 may also be provided, such as in a groove, to improve water tightness and reduce friction on the fabric 1304. Once closed around the stain 1308, the enclosure 908 and its cover 908 keeps water from wetting a larger area than the section that is enclosed in the stain removing device. This is advantageous in that it improves drying time for the fabric 1304.
It can also be seen from
Operation of an exemplary stain removing device that is not propelled by a water source will now be described with regard to the flow diagram of
If sufficient detergent is present, at a step 1412, the stained area of a fabric may be positioned at an orifice of the enclosure. At a step 1416, the orifice of the enclosure may be covered, such as by inserting a cover into the orifice. As described above, this captures the fabric between the enclosure and the cover, namely between the bottom edge of the cover and the ledge of the enclosure. At a step 1420, water may be added, such as by pouring water into one or more water inlets of the cover. Typically, the stain removing device will only be partially filled with water. It is noted that, if effervescent detergent is used, the water will activate the detergent causing it to release gas and cleaning solution.
As can be seen, the stain removing device may contain the stained area of the fabric, water and detergent. The water inlets allow the stain removing device to receive water and also allow air and gas circulation into and out of the stain removing device during cleaning. At a step 1424, the resilient portion of the enclosure may be actuated, such as by gently tapping the stain removing device against a flat surface, causing the detergent compartment 1004 and cap 1104 to move up and down. The water inlets are large enough to allow air and gas circulation when the detergent compartment 1004 and cap 1104 are moving up and down, but small enough to keep the water from splashing out of the stain removing device.
The cap may come into contact with the fabric during actuation of the resilient portion. As describe above, the cap is designed to create friction and water circulation around and through the fabric and stain to improve cleaning. The cap may include one or more holes, protrusions or both for such purposes. The holes also permit detergent in the detergent compartment to mix with water and exit the detergent compartment. It is contemplated that a cap may also or alternatively include one or more brushes.
The resilient portion may be pushed or tapped against a hard surface to actuate the resilient portion. As the resilient portion is pushed inward or engaged, it bends and pushes the detergent compartment and cap upward towards the fabric. The cap then contacts the fabric and creates water circulation and changes in local pressure. This induced water and detergent movement contribute to the cleaning of the stain from the fabric. Since the resilient portion is formed from a resilient material, it will return to its original shape or configuration, thereby moving the detergent compartment and cap back downward away from the fabric. Actuation may continue by pushing or tapping the resilient portion inward once again.
It is noted that, in some embodiments, vertical motion created by actuation of a resilient portion, such as by a user deforming, pushing in or otherwise engaging the resilient portion, may be converted to some rotational movement of the cap, water, detergent or various subsets thereof. Referring to
Actuation may continue for a predetermined period of time or as desired by a user. Water may be removed or drained at a step 1428. This may occur by turning the stain removing device upside down, causing the fluid therein to pour out of the water inlets at the top of the cover. Alternatively, it is contemplated that the cover may be removed and the remaining fluid therein poured out.
At a step 1432, the cover may be removed, such as by removing the cover from the enclosure's orifice, to release the fabric. The fabric may be dried at a step 1436. Since the stain removing device limits wetting of additional areas of the fabric, drying time will be reduced. If additional cleaning is desired, the cleaning process may be repeated one or more additional times, such as by returning to step 1404 or step 1412.
Various other embodiments are contemplated as well. For instance, in one embodiment, the stain removing device may comprise a horizontal grid or mesh right above the enclosure's ledge to counter the pressure of the piston, and prevent excessive bending of a stained fabric. In operation, the cap squeezes the stained fabric against this grid every time it actuated upward. This pressure replicates the batting method used a century ago when washing machines did not exist.
In another embodiment, a spring may be attached between the detergent compartment and the cap. The movement itself is still generated by the user in such embodiment. In another embodiment, the detergent compartment and cap may be a single part removably attached to a resilient portion of the enclosure. For instance, a proximal end of the detergent compartment may snap or clip into a groove in the resilient portion. The detergent compartment and cap may be removed from the resilient potion to place detergent therein, and then be reattached to the resilient portion for use.
In another embodiment, a battery powered electric motor may be used to actuate the resilient portion. This motor may either be switched on and off by the user, or automatically controlled by the detection of water, the closure of the enclosure or both. In such embodiments, a user need not move the device to perform the cleaning. The motor may also be activated by a user generated vertical movement, be used to rotate the cap to improve cleaning or both.
The stain removing device will typically be sized such that the area to be cleaned is a few square inches. However smaller or larger versions of the stain removing device can be made to obtain cleaning areas of a square inch or less or even above ten square inches. Also, the stain removing device may be constructed from low cost plastics in one or more embodiments. The parts of the stain removing device are generally mechanically simple and easy to manufacture. This provides a low cost of manufacturing allowing the stain removing device to be disposable in one or more embodiments.
While various embodiments of the invention have been described, it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible that are within the scope of this invention. In addition, the various features, elements, and embodiments described herein may be claimed or combined in any combination or arrangement.
This application claims priority to U.S. Provisional Patent Application No. 62/219,403, filed Sep. 16, 2015 and to U.S. Provisional Patent Application No. 62/219,046, filed Sep. 15, 2015.
Number | Date | Country | |
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62219403 | Sep 2015 | US | |
62219046 | Sep 2015 | US |