Patent Application
20250010422
The present invention relates generally to the field of scraper and sanding devices. More specifically, the present invention relates to a scraping and sanding attachments for a Sawzall power tool. Accordingly, the present disclosure makes specific reference thereto. Nonetheless, it is to be appreciated that aspects of the present invention are also equally applicable to other like applications, devices and methods of manufacture.
By way of background, this invention relates to improvements in scraper and sanding devices. Generally, scraping and sanding different surfaces in a room or area can be difficult and time consuming. People may need to swap between several different hand-held tools to complete a job. Further, scraping and sanding surfaces by hand can be physically exhausting and take considerable time. Additionally, scraping blades may need to be sharpened often.
Furthermore, a reciprocating handheld power saw is a tool that is widely used by flooring contractors, plumbers, electricians, carpenters, and other workers in the construction industry. The saw blades of such tools are generally removable. This makes it possible to apply the linearly reciprocating motion of such a power tool to other applications besides cutting with a saw. However, sometimes the reconfiguration of the power tool for multiple applications can be cumbersome and inconvenient.
Accordingly, there is a demand for an improved scraper and sanding device that adapts a linearly reciprocating handheld power tool to multiple applications including scraping and sanding. More particularly, there is a demand for a scraper and sanding device that requires only a single point of connection between an attachment and the power tool, and thus, enables very fast and convenient reconfiguration for the multiple supported applications.
Therefore, there exists a long felt need in the art for a scraper and sanding device that provides users with scraping and sanding attachments for a Sawzall power tool. There is also a long felt need in the art for a scraper and sanding device that allows users to secure the sander and scraper to the end of a shaft mechanism that is secured to the Sawzall bit. Further, there is a long felt need in the art for a scraper and sanding device that prevents users from having to constantly swap between multiple small hand-held tools to sand and scrape surfaces. Moreover, there is a long felt need in the art for a device that saves considerable time and effort for construction workers, homeowners, and much more. Further, there is a long felt need in the art for a scraper and sanding device that comprises an attachment shaft that can hold multiple different attachments. Finally, there is a long felt need in the art for a scraper and sanding device that can be quickly interchanged as needed.
The subject matter disclosed and claimed herein, in one embodiment thereof, comprises a scraper and sanding device. The device is a Sawzall attachment device for refining pieces of wood and other surfaces. The scraper and sanding device comprises an attachment shaft component with a plurality of attachment components that can be secured and removed, as needed. Specifically, the attachment shaft component holds multiple different attachment components, such as a scraper blade component or a sanding pad component that removes the old paint and poly/stain surface off a piece of wood. Users can attach the scraper blade components or sanding pad components to the end of the attachment shaft component via a small nut and bolt washer. Users secure the attachment component and then insert it into the Sawzall bit for application to a surface. The scraper blade component and the sanding pad component can be quickly interchanged, as needed.
In this manner, the scraper and sanding device of the present invention accomplishes all of the forgoing objectives and provides users with a device that provides multiple attachments to a Sawzall power tool. The device is a scraper blade and a sanding pad for the Sawzall power tool. The device can be manufactured of a metal material.
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed innovation. This summary is not an extensive overview, and it is not intended to identify key/critical elements or to delineate the scope thereof. Its sole purpose is to present some general concepts in a simplified form as a prelude to the more detailed description that is presented later.
The subject matter disclosed and claimed herein, in one embodiment thereof, comprises a scraper and sanding device. The device is a Sawzall attachment device for refining pieces of wood and other surfaces. The scraper and sanding device comprises an attachment shaft component with a plurality of attachment components that can be secured and removed, as needed. Specifically, the attachment shaft component holds multiple different attachment components, such as a scraper blade component or a sanding pad component that removes the old paint and poly/stain surface off a piece of wood. Users can attach the scraper blade components or sanding pad components to the end of the attachment shaft component via a small nut and bolt washer. Users secure the attachment component and then insert it into the Sawzall bit for application to a surface. The scraper blade component and the sanding pad component can be quickly interchanged, as needed.
The present invention adds multiple additional functions to a reciprocating handheld power tool, such as the Sawzall™. These tools are principally used with saw blades by construction workers for rough cutting applications.
In operation, a typical reciprocating handheld power tool is configured with an attachment component, such as a scraper blade component or a sanding pad component instead of a common saw blade attachment. An operator typically places one hand on a hand grip at the rear of the power tool, places the other hand under the middle of the power tool, and presses a trigger. This activates the in-and-out motion of a reciprocating member of the power tool, which causes the scraper blade component or the sanding pad component to move back and forth in a scrubbing action on any surface on which it is placed. The power tool thus, substitutes for the human muscle power applied in manual scraping or sanding. Accordingly, one important use for this configuration is the removal of old paint from woodwork or other surfaces or sanding woodwork or other surfaces.
In one embodiment, the attachment components are connected to an attachment shaft component via a nut and bolt washer, or any other suitable securing means as is known in the art, such as glue, electrical welding, screws, or any other securing means that can handle the stress forces of operation. The attachment shaft component is then secured to the reciprocating member using an adapter component. Specifically, the adapter component comprises a portion that fits into the reciprocating member using the de-facto standard shape and size of the universal tang (or shank) used at the connecting end of all Sawzall blades and compatible with many products competitive with the Sawzall.
In one embodiment, the attachment component is a scraper blade component which comprises a pronged blade component. Specifically, the pronged blade component comprises a pair of spaced apart blades in a parallel configuration. The blade component can be any suitable shape and size as is known in the art and can be available in different sizes depending on the needs and/or wants of a user. An end of the scraper blade component is then secured to the attachment shaft component which is secured to the adapter component of the handheld power tool.
In one embodiment, the attachment component is a sanding pad component which comprises a triangular-shaped sanding pad or any other suitable shape as is known in the art. Specifically, the sanding pad component comprises a rough, sandpaper bottom surface and a smooth top surface. The sanding pad component can be any suitable shape and size as is known in the art and can be available in different sizes and shapes depending on the needs and/or wants of a user. When the bottom surface is wore down, the sanding pad component is removed and replaced, as needed. In one embodiment, instead of replacing the entire sanding pad component, additional sandpaper can be secured to the rough bottom surface when the original surface is wore down and needing to be replaced. Furthermore, an end of the sanding pad component is then secured to the attachment shaft component which is secured to the adapter component of the handheld power tool.
In one embodiment, the attachment shaft component is manufactured of metal, or other suitable material and is precision molded so that its cavity forms a reliable press fit with the adapter component. Further, any other suitable connection means for securing the attachment shaft component to the adapter component can be utilized as is known in the art.
Overall, many other useful attachment components may be secured to the attachment shaft component. For example, other attachment components can include brushes of various sizes, shapes, and materials. Attachment components may also include scrapers, scouring pads, or buffing pads. Generally, any work accomplished by a hand tool used with a reciprocating or scrubbing motion of a human arm may be eased by an attachment component to the reciprocating handheld power tool according to the present invention.
In one embodiment, the adapter component connects to the reciprocating handheld power tool at a single point of connection using a simple established standard, such as the ½-inch universal tang used with any Sawzall and many compatible competitive products. The quick and easy press-fit connection of the adapter component into the cavity is very convenient for operators who need to quickly change from one application to another. Thus, the present invention makes multiple applications of the reciprocating handheld power tool significantly faster and more convenient than it has been with the prior art.
In another embodiment, operators who work a single application for an extended period of time may prefer to have a particular attachment component permanently attached to the adapter component. This configuration is also included in the scope of the present invention.
Generally, the ½-inch universal tang for connection to any Sawzall reciprocating handheld power tool and compatible competitive products appears to be the current preferred standard for connecting saw blades to reciprocating handheld power tools. Nevertheless, the end of the attachment shaft component which protrudes from the attachment component may be readily altered to make a variation of the adapter component which attaches to other handheld reciprocating power tools that use a connection standard different from that of the Sawzall.
In one embodiment, the scraper and sanding device comprises at least one attachment component secured to a reciprocating handheld power tool at a single point of connection. Typically, the reciprocating handheld power tool is a Sawzall, but can be any suitable handheld power tool as is known in the art. Generally, the reciprocating handheld power tool comprises a tubular housing provided with a plurality of ventilation slots. The tubular housing comprises a first end and a second end with a handle incorporating a trigger grip with an on-off trigger switch and operating the power supply through a cable secured to the second end. A first end comprises an adaptor component secured to an attachment shaft component for securing the attachment components. The tubular housing comprises a motor, a cam and a drive shaft. Rotation of the cam by the motor therefore causes the elements to move axially with respect to the center axis of the power tool, and this causes the drive shaft to move axially in a reciprocating manner. Further, a universal tang secured in the lower end of the drive shaft is configured to receive the adaptor component. The adaptor component is secured to the universal tang via any suitable securing means as is known in the art, such as a peg and threaded shaft, a nut tightened down on a hole or slot, etc.
In another embodiment, the electric motor within the housing is electrical or battery operated. A finger-operated switch is provided and the batteries may be recharged by positioning the device in a charging base to which is connected a charge unit.
In one embodiment, the tubular housing is manufactured of a hard plastic material or other suitable material as is known in the art.
It will be understood that the reciprocating power tool is principally intended for small scale use, as a hand-held tool, for example, for scraping or stripping paint, wallpaper, wood stain, poly/glue, or the like.
In yet another embodiment, the scraper and sanding device comprises a plurality of indicia.
In yet another embodiment, a method of utilizing multiple attachments with a Sawzall power tool is disclosed. The method includes the steps of providing a scraper and sanding device comprising an attachment shaft component, with a plurality of attachment components. The method also comprises inserting a sanding pad component onto to an end of the attachment shaft component via a small nut and bolt washer and inserting into a bit of the Sawzall power tool. Further, the method comprises utilizing the sanding pad component with the Sawzall power tool to sand an object. The method comprises removing the sanding pad component from the Sawzall power tool. The method also comprises inserting a scraper blade component onto an end of the attachment shaft component via a small nut and bolt washer and inserting into a bit of the Sawzall power tool. Finally, the method comprises utilizing the scraper blade component with the Sawzall power tool to scrape an object.
Numerous benefits and advantages of this invention will become apparent to those skilled in the art to which it pertains, upon reading and understanding the following detailed specification.
To the accomplishment of the foregoing and related ends, certain illustrative aspects of the disclosed innovation are described herein in connection with the following description and the annexed drawings. These aspects are indicative, however, of but a few of the various ways in which the principles disclosed herein can be employed and are intended to include all such aspects and their equivalents. Other advantages and novel features will become apparent from the following detailed description when considered in conjunction with the drawings.
The description refers to provided drawings in which similar reference characters refer to similar parts throughout the different views, and in which:
The innovation is now described with reference to the drawings, wherein like reference numerals are used to refer to like elements throughout. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding thereof. It may be evident, however, that the innovation can be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate a description thereof. Various embodiments are discussed hereinafter. It should be noted that the figures are described only to facilitate the description of the embodiments. They are not intended as an exhaustive description of the invention and do not limit the scope of the invention. Additionally, an illustrated embodiment need not have all the aspects or advantages shown. Thus, in other embodiments, any of the features described herein from different embodiments may be combined.
As noted above, there is a long felt need in the art for a scraper and sanding device that provides users with scraping and sanding attachments for a Sawzall power tool. There is also a long felt need in the art for a scraper and sanding device that allows users to secure the sander and scraper to the end of a shaft mechanism that is secured to the Sawzall bit. Further, there is a long felt need in the art for a scraper and sanding device that prevents users from having to constantly swap between multiple small hand-held tools to sand and scrape surfaces. Moreover, there is a long felt need in the art for a device that saves considerable time and effort for construction workers, homeowners, and much more. Further, there is a long felt need in the art for a scraper and sanding device that comprises an attachment shaft that can hold multiple different attachments. Finally, there is a long felt need in the art for a scraper and sanding device that can be quickly interchanged as needed.
The present invention, in one exemplary embodiment, is a novel scraper and sanding device. The device is a Sawzall attachment device for refining pieces of wood and other surfaces. The scraper and sanding device comprises an attachment shaft component with a plurality of attachment components that can be secured and removed, as needed. Users can attach a scraper blade component or a sanding pad component to the end of the attachment shaft component via a small nut and bolt washer. Users secure the attachment component and then insert it into the Sawzall bit for application to a surface. The scraper blade component and the sanding pad component can be quickly interchanged, as needed. The present invention also includes a novel method of utilizing multiple attachments with a Sawzall power tool. The method includes the steps of providing a scraper and sanding device comprising an attachment shaft component, with a plurality of attachment components. The method also comprises inserting a sanding pad component onto to an end of the attachment shaft component via a small nut and bolt washer and inserting into a bit of the Sawzall power tool. Further, the method comprises utilizing the sanding pad component with the Sawzall power tool to sand an object. The method comprises removing the sanding pad component from the Sawzall power tool. The method also comprises inserting a scraper blade component onto an end of the attachment shaft component via a small nut and bolt washer and inserting into a bit of the Sawzall power tool. Finally, the method comprises utilizing the scraper blade component with the Sawzall power tool to scrape an object.
Referring initially to the drawings,
Accordingly, the present invention adds multiple additional functions to a reciprocating handheld power tool 110, such as the Sawzall™, or any other suitable reciprocating handheld power tool as is known in the art. These tools 110 are principally used with saw blades by construction workers for rough cutting applications.
In operation, a typical reciprocating handheld power tool 110 is configured with an attachment component 104, such as a scraper blade component 106 or a sanding pad component 108 instead of a common saw blade attachment. A user typically places one hand on a hand grip 114 at the rear of the power tool 110, places the other hand under the middle 116 of the power tool 110, and presses a trigger 118. This activates the in-and-out motion of a reciprocating member of the power tool 110, which causes the scraper blade component 106 or the sanding pad component 108 to move back and forth in a scrubbing action on any surface on which it is placed. The power tool 110 thus, substitutes for the human muscle power applied in manual scraping or sanding. Accordingly, one important use for this configuration is the removal of old paint from woodwork 112 or other surfaces or sanding woodwork 112 or other surfaces.
Generally, the attachment components 104 are connected to an attachment shaft component 102 via a nut 120 and bolt 122 washer 124, or any other suitable securing means as is known in the art, such as glue, electrical welding, screws, or any other securing means that can handle the stress forces of operation. The attachment shaft component 102 is then secured to the reciprocating member 130 using an adapter component 126. Specifically, the adapter component 126 comprises a portion that fits into the reciprocating member 130 using the de-facto standard shape and size of the universal tang 128 (or shank) used at the connecting end of all Sawzall blades and compatible with many products competitive with the Sawzall.
Furthermore, in one embodiment, the attachment component 104 is a scraper blade component 106 which comprises a pronged blade component 132. Specifically, the pronged blade component 132 comprises a pair of spaced apart blades 134 in a parallel configuration. The blade component 132 can be any suitable shape and size as is known in the art and can be available in different sizes depending on the needs and/or wants of a user. An end 136 of the scraper blade component 106 is then secured to the attachment shaft component 102 which is secured to the adapter component 126 of the handheld power tool 110.
In another embodiment, the attachment component 104 is a sanding pad component 108 which comprises a triangular-shaped sanding pad 138 or any other suitable shape as is known in the art. Specifically, the sanding pad component 108 comprises a rough, sandpaper bottom surface 140 and a smooth top surface 142. The sanding pad component 108 can be any suitable shape and size as is known in the art and can be available in different sizes and shapes depending on the needs and/or wants of a user. When the bottom surface 140 is wore down, the sanding pad component 108 is removed and replaced, as needed. In one embodiment, instead of replacing the entire sanding pad component 108, additional sandpaper 142 can be secured to the rough bottom surface 140 when the original surface is wore down and needs to be replaced. Furthermore, an end 144 of the sanding pad component 108 is then secured to the attachment shaft component 102 which is secured to the adapter component 126 of the handheld power tool 110.
Generally, the attachment shaft component 102 is manufactured of metal, or other suitable material and is precision molded so that its cavity 146 forms a reliable press fit with the adapter component 126. Further, any other suitable connection means for securing the attachment shaft component 102 to the adapter component 126 can be utilized as is known in the art.
Overall, many other useful attachment components 104 may be secured to the attachment shaft component 102. For example, other attachment components 104 can include brushes of various sizes, shapes, and materials. Attachment components 104 may also include scrapers, scouring pads, or buffing pads. Generally, any work accomplished by a hand tool used with a reciprocating or scrubbing motion of a human arm may be cased by an attachment component 104 to the reciprocating handheld power tool 110 according to the present invention.
As shown in
In another embodiment, users who work a single application for an extended period of time may prefer to have a particular attachment component 104 permanently attached to the adapter component 126. This configuration is also included in the scope of the present invention.
Generally, the ½-inch universal tang 128 for connection to any Sawzall reciprocating handheld power tool 110 and compatible competitive products appears to be the current preferred standard for connecting saw blades to reciprocating handheld power tools 110. Nevertheless, the first end 150 of the attachment shaft component 102 is secured to the attachment component 104 and the second end 148, which protrudes from the attachment component 104 may be readily altered to make a variation of the adapter component 126 which attaches to other handheld reciprocating power tools 110 that use a connection standard different from that of the Sawzall.
Furthermore, the scraper and sanding device 100 comprises at least one attachment component 104 secured to a reciprocating handheld power tool 110 at a single point of connection. Typically, the reciprocating handheld power tool 110 is a Sawzall, but can be any suitable handheld power tool as is known in the art. Generally, the reciprocating handheld power tool 110 comprises a tubular housing 300 provided with a plurality of ventilation slots 302. The tubular housing 300 comprises a first end 304 and a second end 306 with a handle 308 incorporating a trigger grip 310 with an on-off trigger switch 118 and operating the power supply through a cable 312 secured to the second end 306. A first end 304 comprises an adaptor component 126 secured to an attachment shaft component 102 for securing the attachment components 104. The tubular housing 300 comprises a motor 314, a cam 316 and a drive shaft 318. Rotation of the cam 316 by the motor 314 therefore causes the elements to move axially with respect to the center axis of the power tool 110, and this causes the drive shaft 318 to move axially in a reciprocating manner. Further, a lower end of the drive shaft 318 is configured to receive the adaptor component 126. The adaptor component 126 is then secured to the universal tang 128 via a press fit means, or any other suitable securing means as is known in the art, such as a peg and threaded shaft, a nut tightened down on a hole or slot, etc.
In another embodiment, the electric motor 314 within the housing 300 is electrical or battery operated. A finger-operated switch is provided and the batteries 320 may be recharged by positioning the device 100 in a charging base to which is connected a charge unit (not shown).
Generally, the tubular housing 300 is manufactured of a hard plastic material or other suitable material as is known in the art.
As shown in
In yet another embodiment, the scraper and sanding device 100 comprises a plurality of indicia 500. The attachment components 104 of the device 100 may include advertising, a trademark, or other letters, designs, or characters, printed, painted, stamped, or integrated into the attachment components 104, or any other indicia 500 as is known in the art. Specifically, any suitable indicia 500 as is known in the art can be included, such as but not limited to, patterns, logos, emblems, images, symbols, designs, letters, words, characters, animals, advertisements, brands, etc., that may or may not be sanding, scraping, or brand related.
Certain terms are used throughout the following description and claims to refer to particular features or components. As one skilled in the art will appreciate, different users may refer to the same feature or component by different names. This document does not intend to distinguish between components or features that differ in name but not structure or function. As used herein “scraper and sanding device”, “scraper device”, “sanding device”, and “device” are interchangeable and refer to the scraper and sanding device 100 of the present invention.
Notwithstanding the forgoing, the scraper and sanding device 100 of the present invention can be of any suitable size and configuration as is known in the art without affecting the overall concept of the invention, provided that it accomplishes the above stated objectives. One of ordinary skill in the art will appreciate that the scraper and sanding device 100 as shown in
Various modifications and additions can be made to the exemplary embodiments discussed without departing from the scope of the present invention. While the embodiments described above refer to particular features, the scope of this invention also includes embodiments having different combinations of features and embodiments that do not include all of the described features. Accordingly, the scope of the present invention is intended to embrace all such alternatives, modifications, and variations as fall within the scope of the claims, together with all equivalents thereof.
What has been described above includes examples of the claimed subject matter. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the claimed subject matter, but one of ordinary skill in the art may recognize that many further combinations and permutations of the claimed subject matter are possible. Accordingly, the claimed subject matter is intended to embrace all such alterations, modifications and variations that fall within the spirit and scope of the appended claims. Furthermore, to the extent that the term “includes” is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term “comprising” as “comprising” is interpreted when employed as a transitional word in a claim.
The present application claims priority to, and the benefit of, U.S. Provisional Application No. 63/512,344, which was filed on Jul. 7, 2023, and is incorporated herein by reference in its entirety.
| Number | Date | Country | |
|---|---|---|---|
| 63512344 | Jul 2023 | US |
