Patent Application
20240286249
A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent disclosure, as it appears in the Patent and Trademark Office patent files or records, but otherwise reserves all copyright rights whatsoever.
The present invention generally relates to the field of hand tools and more particularly relates to a hand-held cylindrical device for sanding and restoration for use on cylindrical objects with multiple advance features.
Small sanding jobs and sanding jobs calling for considerable detail work or access to small confined areas will usually call for the direct hand application of sandpaper of one or more suitable grit sizes. The difficulty in hand-sanding is in applying firm pressure long enough to complete the job and in applying even pressure to obtain a desired smooth and even finish. A further difficulty is to obtain efficient use of the sandpaper by not wasting any substantial portion of its surface area.
To facilitate hand sanding square sanding blocks, sized to fit the hand, have been used for years. By using a sanding block as a sandpaper holder, hand-applied sanding forces can be increased and more evenly distributed. However, one of the problems encountered in typically make-shift square sanding blocks is the tendency of the sandpaper to rip off the block when in use. Another problem is that the block dimensions limit the ability of the sander to sand curved surfaces and get into hard to access corners and other locations, such as frequently found around window sills and door jams. Block sandpaper holders are also generally made of scrap wood material with a hard non-resilient surface, frequently causing the sander to overly cut or gouge the sanded surface.
There are a variety of hand tools for sanding that include a frame and means thereon for detachably connecting thereto a strip or sheet, or a portion of a sheet, of material having an abrasive coating on one face thereof. The known tools have a base plate that serves as a backing for the sheet of abrasive material and such base plate in some instances is rigid while in others it is flexible. Also, in some instances the base plate is flat while in others it is curved.
Hand tools are also known that consist of a C-shaped frame with a cutting element detachably secured thereto and wherein the cutting element spans across the bite of the C-shaped frame. Examples of such known tools are hack saws, bow saws and coping saws. These well-known tools include means to adjust the tension of the cutting element which in most instances is in the form of a blade with saw teeth on one edge thereof. In some instances, the cutting element is in the form of a cylindrical rod with cutting formations around the outer periphery but in all instances considerable tension is applied to the cutting element.
Power sanders are known that include an endless belt running on spaced apart pulleys and with a free span between two pulleys, (or equivalent support) that is used to sand an object. In machines of this type the work piece must be brought to the tool and this is not always convenient and many times not even possible.
There are multiple solutions that have been presented in prior art. However, these solutions are limited and restricted to their conventional architecture and have considerable shortcomings which adversely affect the convenience with which they can be used. The prior systems have certain limitations including the design of assemblies which make them not suitable for every type of user. Moreover, the ease-of-use ability of these assemblies is also questionable. The current invention also discusses an advancement in hand held sanding device which is designed for cylindrical objects and provide various advancements in term of ease of use, time, and cost to the user which have not been practiced before.
None of the previous inventions and patents, taken either singly or in combination, is seen to describe the instant invention as claimed. Hence, the inventor of the present invention proposes to resolve and surmount existent technical difficulties to eliminate the aforementioned shortcomings of prior art.
In light of the disadvantages of the prior art, the following summary is provided to facilitate an understanding of some of the innovative features unique to the present invention and is not intended to be a full description. A full appreciation of the various aspects of the invention can be gained by taking the entire specification, claims, drawings, and abstract as a whole.
The primary desirable object of the present invention is to provide a novel and improved form of hand-held sanding device specially designed for cylindrical objects.
The primary objective of this invention is to provide a sanding device that allows the user to cover 2 times as much working area in half the time compared to using traditional approaches of sanding blocks or physically holding the sandpaper and using it with bare hands.
Another objective of the invention is to provide an easy-to-use device that provides convenience and comfort to user and saves the user's effort and time.
It is a further objective of the invention to provide a device that unlike the prior art wraps around a cylindrical surface 360° allowing an evenly sanded work surface.
It is also the objective of the invention to provide a hand-held sanding device that eliminates the need for an external power source and acts as a stand-alone tool.
Another object of the invention is to provide a device that saves users' hands from physical harm due to holding rough sandpaper in bare hands.
It is a further object of the present invention to provide a new and improved form of assembly that is of durable and reliable construction.
Still, yet another object of the present invention is to provide a new and improved sanding tool that provides in the apparatuses and methods of the prior art some of the advantages thereof, while simultaneously overcoming some of the disadvantages normally associated therewith.
This Summary is provided merely for purposes of summarizing some example embodiments, so as to provide a basic understanding of some aspects of the subject matter described herein. Accordingly, it will be appreciated that the above-described features are merely examples and should not be construed to narrow the scope or spirit of the subject matter described herein in any way. Other features, aspects, and advantages of the subject matter described herein will become apparent from the following Detailed Description, Figures, and Claims.
The accompanying figures, where like reference numerals refer to identical or functionally similar elements throughout the separate views, together with the detailed description below, are incorporated in and form part of the specification, and serve to further illustrate embodiments of concepts that include the claimed invention, and explain various principles and advantages of those embodiments.
The apparatus and method components have been represented where appropriate by conventional symbols in the drawings, showing only those specific details.
Detailed descriptions of the preferred embodiment are provided herein. It is to be understood, however, that the present invention may be embodied in various forms. Therefore, specific details disclosed herein are not to be interpreted as limiting, but rather as a basis for the claims and as a representative basis for teaching one skilled in the art to employ the present invention in virtually any appropriately detailed system, structure or manner.
Hand-powered sanding tools have been utilized for a number of years in the construction and finishing industries. For instance, it is well-known to attach sandpaper to a sanding block for ease of sanding. In simplest terms, such a sanding block would typically include a rectangular gripping block with slits (or clamps) on each end for securing a sheet of sandpaper. Because sandpaper wears out quickly and because it is easily subject to ripping and tearing, more advanced sanding blocks provide an easy method of attaching and removing the sandpaper to facilitate sandpaper replacement.
The current invention as per its preferred embodiments provides a hand-held sanding tool that assists the user to perform the sanding job in an effective manner.
As shown in
As per further embodiments, there are 2 rubber sheets 6 in×2¾ inches used for the application of the sanding adhesive placed adjacent to one another on the inside of each piece of PVC running length way and secured to PVC by two fasteners that also attach hinges to the PVC. Located under the rubber sheet on the upper piece of PVC on the left-hand side is a removable piece of fabricated metal. The metal is inset to fit the inner arc of the PVC flush with the ridge to help remove rust or other unwanted debris on a work surface.
As per further embodiments, located on the top half of the upper piece of PVC is a black handle mounted on the center line secured by 2 bolts placed 3 inches inwards on each side. Furthermore, a Velcro hook and loop strap is fastened in the center of the bottom piece of PVC flush with the top ridge to help secure the sanding device around a designated working surface.
By looking at
As shown in
Skilled artisans will appreciate those elements in the figures are illustrated for simplicity and clarity and have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the figures may be exaggerated relative to other elements to help to improve understanding of embodiments of the present invention.
The apparatus and method components have been represented where appropriate by conventional symbols in the drawings, showing only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having the benefit of the description herein.
While a specific embodiment has been shown and described, many variations are possible. With time, additional features may be employed. The particular shape or configuration of the platform or the interior configuration may be changed to suit the system or equipment with which it is used.
Having described the invention in detail, those skilled in the art will appreciate that modifications may be made to the invention without departing from its spirit. Therefore, it is not intended that the scope of the invention be limited to the specific embodiment illustrated and described. Rather, it is intended that the scope of this invention be determined by the appended claims and their equivalents.
