US2921417A - Abrasive cleaning implement - Google Patents

Description

Jan. 19, 1960 s. P. ANDREWS ABRASIVE CLEANING IMPLEMENT Filed May 28. 1958 INVENTOR. SARAH P. ANDREWS United States Patent 2,921,417 ABRASIVE CLEANING IMPLEMENT Sarah Phyllis Andrews, Niagara Falls, NY. Application May 28, 1958, Serial No. 738,390 6 Claims. 01. 51-185) This invention relates to a cleaning article and more particularly to an abrasive article especially adapted for use in cleaning the surfaces of what are commonly known as rubber erasers.

It is a common experience to find that the surface of a rubber eraser has become smudged in use and therefore unfit for further use on clean surfaces because the smudge will rub off and dirty the surface to which the eraser is applied.

Moreover, a rubber eraser without protection will gather dust or otherwise become unclean if left on a desk or in a drawer along with other articles commonly found in such places.

My invention affords protection for the eraser against the accumulation of dirt when it is not in use and also provides a ready means for cleaning the eraser, whether the need for such cleaning has arisen because of its use as an eraser or because of the accumulation of dust or dirt while not in use.

A clear understanding of my invention will be gained by reference to the appended drawing, in which:

Figure l is a perspective view of one embodiment of my invention;

Figure 2 is a sectional view along the line 2-2 of Figure 1; and

Figure 3 is a perspective view of the abrasive element of another modification of my invention.

In Figure 1 there is illustrated an abrasive article 1 comprising a shield 2 with an abrasive coated web 3 attached thereto by a wire staple 4.

Figure 2 shows a paper board shield 2 with an abrasive coated web 3, comprising an open mesh backing 7 with abrasive particles 8 adhesively attached thereto, formed by folding a strip of the material upon itself at the middle, held in a fold or crease 5 in said shield by means of a wire staple 4. Other means than a wire staple can be used to attach the abrasive web to the shield; e.g. an adhesive may be used.

In Figure 3 there is illustrated an abrasive coated element 3 in which the web itself or the so-called backing 7 is of paper or cloth of the usual kinds and the abrasive particles 8 are attached to a surface thereof.

The shield, for the sake of economy, preferably is made of light weight paper board, but other materials, such as various well known sheeted plastics, may be used. The shield is made by taking a strip of paper board, for example, of the correct width and length and forming a transverse crease 5 therein close to one end. Another crease 6 then is formed in said strip at a sufiicient distance from the first crease 5 to provide an intervening space large enough to readily receive and accommodate the abrasive element 3.

The abrasive element 3 can be made of a web of paper or cloth to which abrasive granules of any desired size are adhesively attached. One particularly desirable abrasive web is that which is made by adhesively attaching the abrasive granules to an open mesh or square weave cloth. In this modification the abrasive particles are attached to both sides of the cloth and substantially enclose the threads of the cloth. The methods by which the abrasive coated webs, including this open mesh web, are made are well known in the art.

To clean an eraser the flap 9 of the shield is opened to expose the abrasive coated web and that part of the surface of the eraser which is to be cleaned is rubbed against the abrasive particles until the dirt or smudge has been removed. There being spaces between the abrasive particles in any case it is a simple matter to remove the detritus from the cleaner. The open mesh abrasive web is especially easy to clean after use.

Having thus described my invention, I claim:

1. An abrasive article comprising a web having abrasive granules adhesively attached to a surface thereof, said web being in the form of a strip folded upon itself at the middle and being fastened at the free ends thereof to and within a shield that covers both faces thereof and permits of exposure of said web when desired.

2. An abrasive article comprising a strip of cloth having abrasive granules adhesively attached to a surface thereof, said strip of cloth being folded upon itself at the middle with the abrasive granules on the outside and being fastened by the free ends to and within a shield that covers said strip and permits of exposure of said abrasive coated surface.

3. An abrasive article comprising a strip of open mesh cloth having abrasive granules adhesively attached thereto, said strip of cloth being folded upon itself at the middle with abrasive granules on the outside and being attached by the free ends thereof to a shield at one free end thereof and which shield is folded over both ends of said strip and whose other free end projects to and beyond the first mentioned free end of said shield and can be tucked under said free end, whereby to enclose said abrasive coated strip.

4. An abrasive article comprising a strip of open mesh cloth having abrasive granules adhesively attached thereto, said strip of cloth being folded upon itself at the middle with abrasive granules on the outside and being attached at the free ends thereof to a fabric shield at one free end thereof and which is folded over both ends of said strip and whose other free end projects to and beyond the first mentioned free end of said shield, and can be tucked under said free end whereby to enclose said abrasive coated strip.

5. An abrasive article comprising a strip of open mesh cloth having abrasive granules adhesively attached thereto, said strip of cloth being folded upon itself at the middle with abrasive granules on the outside and being attached at the free ends thereof to a paper shield at one free end thereof and which is folded over both ends of said stripand whose other free end projects to and beyond the first mentioned free end of said shield, and can be tucked under said free end whereby to enclose said abrasive coated strip.

6. An abrasive article comprising a strip of open mesh cloth having abrasive granules adhesively attached thereto, said strip of cloth being folded upon itself at the middle with abrasive granules on the outside and being stapled at the free ends thereof to a paper shield at one free end thereof and which is folded over both ends of said strip and whose other free end projects to and beyond the first mentioned free end of said shield, and can be tucked under said free end whereby to enclose said abrasive coated strip.

References Cited in the file of this patent UNITED STATES PATENTS

Images