US2991596A - Back-up pad and abrasive sheet - Google Patents

Back-up pad and abrasive sheet Download PDF

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US2991596A
US2991596A US832189A US83218959A US2991596A US 2991596 A US2991596 A US 2991596A US 832189 A US832189 A US 832189A US 83218959 A US83218959 A US 83218959A US 2991596 A US2991596 A US 2991596A
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pad
sheet
abrasive
secured
disc
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US832189A
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Roy J Walters
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/02—Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface
    • B24D15/023—Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface using in exchangeable arrangement a layer of flexible material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
    • B24D9/08—Circular back-plates for carrying flexible material
    • B24D9/085—Devices for mounting sheets on a backing plate

Definitions

  • This invention relates in general to a device for finishing or working the surfaces of materials, and more particularly to an abrading device, and still more particularly to a combination back-up pad and detachable abrasive sheet.
  • Another object of this invention is in the provision of a combination back-up pad and abrasive sheet adapted to be mounted on a holder, wherein the abrasive sheet may be easily applied and locked to the back-up pad, and easily removed therefrom.
  • Still another object of this invention resides in the provision of a combination back-up pad and abrasive sheet including a snap fastener having male and female parts, wherein one of the parts is secured to the abrasive sheet and the other part is secured to the back-up pad, thereby permitting easy mounting and dismounting of the abrasive sheet on the back-up pad.
  • a further object of this invention is in the provision of a combination back-up pad and abrasive sheet including a snap fastener having male and female parts, wherein one of the parts is secured to the abrasive sheet and the other part is secured to the back-up pad, and means is provided on the back-up pad for engagement with the abutting surface of the abrasive sheet to prevent relative movement between the abrasive sheet and back-up pad.
  • a still further object of this invention is to provide a combination disc-shaped back-up pad and abrasive disc having means for permitting easy application of the abrasive disc to the back-up pad and assuring positive centering and locking action, wherein no protrusions will exist on the abrasive side of the disc.
  • a further object of this invention is in the provision of a combination abrasive disc and disc-shaped resilient back-up pad including a snap fastener having coacting male and female parts, wherein one of the parts is secured to the non-abrasive side of the abrasive disc and the other part is recessed from the outer surface of the back-up pad, and a layer of tacky substance is provided on the outer face of the back-up pad for engagement with the non-abrasive side of the abrasive disc to prevent relative movement between the abrasive disc and back-up pad.
  • a still further object of this invention is to provide a combination abrasive sheet and back-up pad including a plurality of snap fasteners for detachably securing the abrasive sheet to the back-up pad, whereby easy mounting and dismounting of the abrasive sheet on the back-up pad is obtained without the use of any special tools.
  • FIG. 1 is a perspective view of the invention illustrating the abrasive sheet removed from the back-up pad, and the back-up pad is mounted on a holder;
  • FIG. 2 is an axial sectional view taken through the em- Sates Patent f bodiment of FIG. 1 and illustrating the abrasive sheet in r 2,991,596 Patented July 11, 1961 removed position in solid lines and in mounted position in dotted lines;
  • FIG. 3 is a view similar to FIG. 2, and illustrating the reversal of positioning of snap fastener parts wherein the female part is secured to the abrasive sheet and the male part is secured to tthe back-up pad;
  • FIG. 4 is a perspective view of an orbital sander and illustrating the application of the present invention thereto.
  • the present invention includes generally a resilient back-up pad 10 and an abrasive sheet 11.
  • the back-up pad and abrasive sheet are disc-shaped, and the back-up pad is constructed to be mounted on a rotatively driven holder or mandrel, generally designated by the numeral 12.
  • the holder 12 includes a head 13 and a spindle 14, wherein the spindle is adapted to be connected to a rotative source of power, and the head is adapted to have the back-up pad 10 attached thereto.
  • the head 13 also includes a diametrically reduced portion 15 having an inwardly spaced annular groove 16 defining an annular retaining flange 17 spaced outwardly from a backing surface 18 on the head.
  • the back-up pad 10 is preferably made of rubber, but may be made of any resilient material, and includes an annular enlarged portion 19 having an inwardly projecting radial lip 20 for engagement over the flange 17 of the holder head 13 by being received in the annular groove 16 thereof.
  • the back-up pad 10 may be removed from the holder 12 or mounted thereon by means of manipulating the back-up lip 20 relative to the holder flange 17.
  • the abrasive disc 11 includes a sheet of material 21 having abrasive particles 22 secured to the outer side and a smooth surface 23 on the inner side.
  • the sheet of material 21 and the type of abrasive material 22 secured thereon may be of any known type suitable to the Particular type of operation of the user.
  • the sheet of material may be paper, plastic, fabric, steel, or any other suitable material.
  • a snap fastener including a male part '24 secured to the smooth side 23 of the abrasive disc 11 and a female part 25 secured to the back-up pad 10 may be provided.
  • the male part 24 may be secured to the abrasive disc 11 if the disc is steel by welding or soldering, or if the disc is of paper or other stock by a suitable adhesive.
  • the female part 25 may be secured to the resilient back-up pad 10 in any suitable manner.
  • the snap fastener may be constructed of steel, rubber, plastic, or any other suitable material.
  • the female part 22 of the snap fastener is recessed from the outer surface of the back-up pad 10, and a centrally slightly dish-shaped portion 26 is provided in the outer surface of the back-up pad, whereby attachment of the male part 24 to the female part 25 assures the absence of protrusions from the outer abrasive side of the disc 11.
  • a layer of tacky or adhesive material 27 is provided on the outer surface of the backup pad 10 for engagement with the smooth surface 23 of the abrasive disc 11.
  • FIG. 3 differs from the embodiment of FIGS. 1 and 2 only in that the male and female parts of the snap fastener are reversed in position, Wherein the male part 28 issecured to the back-up pad 10, and the female part 29 is secured to the smooth side 23 of the abrasive disc 11.
  • the combination abrasive sheet and back-up pad unit of the present invention may also be utilized in connection with orbital sanders, and an orbital sander 30 is illustrated in FIG. 4.
  • the orbital sander 30 includes a main housing 31 having a handle 32 attached thereto, and a driving plate 33. Suitably secured to the driving plate 33 is a rubber backup pad 34, like the back-up pad of the other embodiments except rectangular in shape. A layer of tacky substance 35 is provided on the outer surface of the backup pad 34, and female parts 36 of snap fasteners are secured in recessed fashion at the four corners of the backup pad.
  • the abrasive sheet 37 is rectangular in shape, but may be constructed of the same materials as the abrasive disc 11 of FIGS. 1 to 3.
  • a plurality of male parts 38 are suitably fastened to the smooth side of the abrasive sheet 37 and in alignment with the female fasteners 36 on the back-up pad 34, whereby snapping of each male part 38 into its corresponding female part 36 will attach the abrasive sheet 37 to the back-up pad of the orbital sander.
  • the tacky substance 35 will engage the smooth surface of the abrasive sheet 37 and inhibit relative movement between the abrasive sheet and back-up pad.
  • the abrasive sheet 37 may also be easily removed and replaced with a new sheet by simply unsnapping the male parts from the female pants.
  • a resilient back-up pad and an abrasive disc said disc including a sheet of material having abrasive particles secured to one side thereof and being smooth on the other side, a snap fastener having coacting male and female parts for detachably mounting said disc on said back-up pad, one part of said fastener being secured to said smooth side of said disc and said other part of said fastener being secured to said back-up pad, and means on said back-up pad for engaging said smooth side of said disc and preventing relative movement between said disc and back-up pad.
  • a resilient back-up pad and an abrasive disc said disc including a sheet of material hav ing abrasive particles secured to one side thereof and be :ing smooth on the other side, a snap fastener having coacting male and fem-ale parts for detachably mounting said disc on said back-up pad, one part of said fastener being secured centrally of said smooth side of said disc and said other part being secured centrally of said backup pad, and means on said back-up pad for engaging said smooth side of said disc and preventing relative movement between said disc and back-up pad.
  • a resilient back-up pad and an abrasive disc said disc including a sheet of material having abrasive particles secured to one side thereof and being smooth on the other side, a snap fastener having coacting male and female parts for detachably mounting said disc on said back-up pad, one part of said fastener being secured centrally of said smooth side of said disc and said other part being secured centrally of said backup pad, said part secured to said back-up pad being recessed from the outer surface thereof, and means on said back-up pad for engaging said smooth side of said disc and preventing relative movement between said disc and back-up pad.
  • a resilient back-up pad and an abrasive disc said disc including a sheet of material having abrasive particles secured to one side thereof and being smooth on the other side, a snap fastener having coacting male and female parts for detachably mounting said disc on said back-up pad, one part of said fastener being secured centrally of said smooth side of said disc and said other part being secured centrally of said backup pad, said part secured to said back-up pad being recessed from the outer surface thereof, and a layer of tacky material on said back-up pad for engaging said smooth side of said sheet and preventing relative movement between said sheet and back-up pad.

Description

July 11, 1961 R. .1. WALTERS BACK-UP PAD AND ABRASIVE SHEET Filed Aug. 7, 1959 B ..IO 5 E w A is? INVENTOR. ROY J. WALTERS BY W MW Unite This invention relates in general to a device for finishing or working the surfaces of materials, and more particularly to an abrading device, and still more particularly to a combination back-up pad and detachable abrasive sheet.
Heretofore, abrasive sheets which were detachable from a holder had one main disadvantage in that too much time was consumed in effecting replacement of abrasive sheets.
Accordingly, it is an object of the present invention to provide an improved detachable abrasive sheet that may be quickly and easily replaced without the use of special tools.
Another object of this invention is in the provision of a combination back-up pad and abrasive sheet adapted to be mounted on a holder, wherein the abrasive sheet may be easily applied and locked to the back-up pad, and easily removed therefrom.
Still another object of this invention resides in the provision of a combination back-up pad and abrasive sheet including a snap fastener having male and female parts, wherein one of the parts is secured to the abrasive sheet and the other part is secured to the back-up pad, thereby permitting easy mounting and dismounting of the abrasive sheet on the back-up pad.
A further object of this invention is in the provision of a combination back-up pad and abrasive sheet including a snap fastener having male and female parts, wherein one of the parts is secured to the abrasive sheet and the other part is secured to the back-up pad, and means is provided on the back-up pad for engagement with the abutting surface of the abrasive sheet to prevent relative movement between the abrasive sheet and back-up pad.
A still further object of this invention is to provide a combination disc-shaped back-up pad and abrasive disc having means for permitting easy application of the abrasive disc to the back-up pad and assuring positive centering and locking action, wherein no protrusions will exist on the abrasive side of the disc.
A further object of this invention is in the provision of a combination abrasive disc and disc-shaped resilient back-up pad including a snap fastener having coacting male and female parts, wherein one of the parts is secured to the non-abrasive side of the abrasive disc and the other part is recessed from the outer surface of the back-up pad, and a layer of tacky substance is provided on the outer face of the back-up pad for engagement with the non-abrasive side of the abrasive disc to prevent relative movement between the abrasive disc and back-up pad.
A still further object of this invention is to provide a combination abrasive sheet and back-up pad including a plurality of snap fasteners for detachably securing the abrasive sheet to the back-up pad, whereby easy mounting and dismounting of the abrasive sheet on the back-up pad is obtained without the use of any special tools.
Other objects, features, and advantages of the invention will be apparent from the following detailed disclosure, taken in conjunction with the accompanying sheet of drawings, wherein like reference numerals refer to like parts, in which:
FIG. 1 is a perspective view of the invention illustrating the abrasive sheet removed from the back-up pad, and the back-up pad is mounted on a holder;
FIG. 2 is an axial sectional view taken through the em- Sates Patent f bodiment of FIG. 1 and illustrating the abrasive sheet in r 2,991,596 Patented July 11, 1961 removed position in solid lines and in mounted position in dotted lines;
FIG. 3 is a view similar to FIG. 2, and illustrating the reversal of positioning of snap fastener parts wherein the female part is secured to the abrasive sheet and the male part is secured to tthe back-up pad; and
FIG. 4 is a perspective view of an orbital sander and illustrating the application of the present invention thereto.
Referring now to the drawings, and particularly to FIGS. 1 and 2, the present invention includes generally a resilient back-up pad 10 and an abrasive sheet 11. In this embodiment, the back-up pad and abrasive sheet are disc-shaped, and the back-up pad is constructed to be mounted on a rotatively driven holder or mandrel, generally designated by the numeral 12.
The holder 12 includes a head 13 and a spindle 14, wherein the spindle is adapted to be connected to a rotative source of power, and the head is adapted to have the back-up pad 10 attached thereto. The head 13 also includes a diametrically reduced portion 15 having an inwardly spaced annular groove 16 defining an annular retaining flange 17 spaced outwardly from a backing surface 18 on the head.
The back-up pad 10 is preferably made of rubber, but may be made of any resilient material, and includes an annular enlarged portion 19 having an inwardly projecting radial lip 20 for engagement over the flange 17 of the holder head 13 by being received in the annular groove 16 thereof. Thus, the back-up pad 10 may be removed from the holder 12 or mounted thereon by means of manipulating the back-up lip 20 relative to the holder flange 17.
As seen most clearly in FIG. 2, the abrasive disc 11 includes a sheet of material 21 having abrasive particles 22 secured to the outer side and a smooth surface 23 on the inner side. The sheet of material 21 and the type of abrasive material 22 secured thereon may be of any known type suitable to the Particular type of operation of the user. For example, the sheet of material may be paper, plastic, fabric, steel, or any other suitable material.
In order to detachably mount the abrasive disc 11 to the back-up pad 10, a snap fastener including a male part '24 secured to the smooth side 23 of the abrasive disc 11 and a female part 25 secured to the back-up pad 10 may be provided. The male part 24 may be secured to the abrasive disc 11 if the disc is steel by welding or soldering, or if the disc is of paper or other stock by a suitable adhesive. Likewise, the female part 25 may be secured to the resilient back-up pad 10 in any suitable manner. Depending on the type of use required for the abrasive sheet and back-up pad, the snap fastener may be constructed of steel, rubber, plastic, or any other suitable material.
As noted in FIG. 2, the female part 22 of the snap fastener is recessed from the outer surface of the back-up pad 10, and a centrally slightly dish-shaped portion 26 is provided in the outer surface of the back-up pad, whereby attachment of the male part 24 to the female part 25 assures the absence of protrusions from the outer abrasive side of the disc 11.
In order to prevent relative movement between the abrasive disc 11 and the back-up pad 10, or relative rotation between these parts, a layer of tacky or adhesive material 27 is provided on the outer surface of the backup pad 10 for engagement with the smooth surface 23 of the abrasive disc 11. Inasmuch as the snap fastener parts are centrally mounted on the back-up pad and abrasive disc, positive centering and locking action of the abrasive disc tothe back-up pad is accomplished, and it will be readily appreciated that replacement of the abrasive disc can be accomplished with ease.
The embodiment of FIG. 3 differs from the embodiment of FIGS. 1 and 2 only in that the male and female parts of the snap fastener are reversed in position, Wherein the male part 28 issecured to the back-up pad 10, and the female part 29 is secured to the smooth side 23 of the abrasive disc 11.
The combination abrasive sheet and back-up pad unit of the present invention may also be utilized in connection with orbital sanders, and an orbital sander 30 is illustrated in FIG. 4.
The orbital sander 30 includes a main housing 31 having a handle 32 attached thereto, and a driving plate 33. Suitably secured to the driving plate 33 is a rubber backup pad 34, like the back-up pad of the other embodiments except rectangular in shape. A layer of tacky substance 35 is provided on the outer surface of the backup pad 34, and female parts 36 of snap fasteners are secured in recessed fashion at the four corners of the backup pad. In this instance, the abrasive sheet 37 is rectangular in shape, but may be constructed of the same materials as the abrasive disc 11 of FIGS. 1 to 3. A plurality of male parts 38 are suitably fastened to the smooth side of the abrasive sheet 37 and in alignment with the female fasteners 36 on the back-up pad 34, whereby snapping of each male part 38 into its corresponding female part 36 will attach the abrasive sheet 37 to the back-up pad of the orbital sander. The tacky substance 35 will engage the smooth surface of the abrasive sheet 37 and inhibit relative movement between the abrasive sheet and back-up pad. As in the embodiments of FIGS. 1 to 3, the abrasive sheet 37 may also be easily removed and replaced with a new sheet by simply unsnapping the male parts from the female pants.
It will be understood that modifications and variations may be effected without departing from the scope of the novel concepts of the present invention, but it is understood that this application is to be limited only by the scope of the appended claims.
The invention is claimed as follows:
1. The combination of a resilient back-up pad and an abrasive disc, said disc including a sheet of material having abrasive particles secured to one side thereof and being smooth on the other side, a snap fastener having coacting male and female parts for detachably mounting said disc on said back-up pad, one part of said fastener being secured to said smooth side of said disc and said other part of said fastener being secured to said back-up pad, and means on said back-up pad for engaging said smooth side of said disc and preventing relative movement between said disc and back-up pad.
2. The combination of a resilient back-up pad and a sheet of abrasive material having abrasive particles secured to one side thereof and the other side thereof being smooth, a snap fastener having coacting male and female parts for detachably mounting said sheet on said back-up pad, one part of said fastener being secured to said smooth side of said sheet and said other part being secured to said back-up pad, and means on said back-up pad for engaging said smooth side of said sheet and preventing relative movement between said sheet and back-up pad.
3. The combination of a resilient back-up pad and a sheet of abrasive material having abrasive particles secured to one side thereof and the other side thereof being smooth, at least one snap fastener having coacting male and female parts for detachably mounting said sheet on said back-up pad, one part of said fastener being secured to said smooth side of said sheet and said other part being secured to said back-up pad, said part secured to said back-up pad being recessed from the outer surface thereof, and means on said back-up pad for engaging said smooth side of said sheet and preventing relative movement between said sheet and back-up pad.
4. The combination of a resilient back-up pad and a sheet of abrasive material having abrasive particle secured to one side thereof and the other side thereof being smooth, at least one snap fastener having coacting male and female parts for detachably mounting said sheet on said back-up pad, one part of said fastener being secured to said smooth side of said sheet and said other part being secured to said back-up pad, said part secured to said back-up pad being recessed from the outer surface thereof, and a layer of tacky material on said backup pad for engaging said smooth side of said sheet and preventing relative movement between said sheet and back-up pad.
5. The combination of a resilient back-up pad and an abrasive disc, said disc including a sheet of material hav ing abrasive particles secured to one side thereof and be :ing smooth on the other side, a snap fastener having coacting male and fem-ale parts for detachably mounting said disc on said back-up pad, one part of said fastener being secured centrally of said smooth side of said disc and said other part being secured centrally of said backup pad, and means on said back-up pad for engaging said smooth side of said disc and preventing relative movement between said disc and back-up pad.
6. The combination of a resilient back-up pad and an abrasive disc, said disc including a sheet of material having abrasive particles secured to one side thereof and being smooth on the other side, a snap fastener having coacting male and female parts for detachably mounting said disc on said back-up pad, one part of said fastener being secured centrally of said smooth side of said disc and said other part being secured centrally of said backup pad, said part secured to said back-up pad being recessed from the outer surface thereof, and means on said back-up pad for engaging said smooth side of said disc and preventing relative movement between said disc and back-up pad.
7. The combination of a resilient back-up pad and an abrasive disc, said disc including a sheet of material having abrasive particles secured to one side thereof and being smooth on the other side, a snap fastener having coacting male and female parts for detachably mounting said disc on said back-up pad, one part of said fastener being secured centrally of said smooth side of said disc and said other part being secured centrally of said backup pad, said part secured to said back-up pad being recessed from the outer surface thereof, and a layer of tacky material on said back-up pad for engaging said smooth side of said sheet and preventing relative movement between said sheet and back-up pad.
8. The combination of a resilient back-up pad and a sheet of abrasive material having abrasive particles secured to one side thereof and the other side thereof being smooth, a plurality of snap fasteners having coacting male and female parts for detachably mounting said sheet on said back-up pad, one part of each fastener being secured to said smooth side of said sheet and said other parts being secured to said back-up pad, and means on said back-up pad for engaging said smooth side of said sheet and preventing relative movement between said sheet and back-up pad.
9. The combination of a resilient back-up pad and a sheet of abrasive material having abrasive particles secured to one side thereof and the other side thereof being smooth, a plurality of snap fasteners having coacting male and female parts for detachably mounting said sheet on said back-up pad, one part of each fastener being secured to said smooth side of said sheet and said other parts being secured to said back-up pad, and a layer of tacky material on said back-up pad for engaging said smooth side of said sheet and preventing relative movement be tween said sheet and back-up pad.
10. The combination of a resilient back-up pad and a sheet of abrasive material having abrasive particles secured to one side thereof and the other side thereof being smooth, a plurality of snap fasteners having coacting male and female parts for detachably mounting said sheet on said back-up pad, one part of each fastener being secured to said smooth side of said sheet and said other parts being secured to said back-up pad, said parts being secured to said back-up pad being recessed from the outer surface thereof, and a layer of tacky material on said back-up pad for engaging said smooth side of said sheet and preventing relative movement between said sheet and backup pad.
References Cited in the file of this patent UNITED STATES PATENTS 2,227,707 Cooper Jan. 7, 1941 6 Hey Nov. 14, Crosby Mar. 20, Burleigh Mar. 20, ONeil July 7, Tocci-Guilbert Jan. 19, Peterson Mar. 20, Short July 30, Carr Jan. 28, Kohlwey Mar. 17,
US832189A 1959-08-07 1959-08-07 Back-up pad and abrasive sheet Expired - Lifetime US2991596A (en)

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US3270467A (en) * 1963-07-01 1966-09-06 Merit Products Inc Abrasive device
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US3299584A (en) * 1964-07-22 1967-01-24 Mark H Landis Vacuum heads for disc grinders, sanders and the like
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US4988294A (en) * 1980-07-21 1991-01-29 Minnesota Mining And Manufacturing Company Detachable abrasive disk
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US5201785A (en) * 1991-05-10 1993-04-13 Minnesota Mining & Manufacturing Company Disc-holder assembly
US5485918A (en) * 1991-11-04 1996-01-23 Minnesota Mining And Manufacturing Company Packaging assembly
US5490808A (en) * 1993-01-28 1996-02-13 Minnesota Mining And Manufacturing Company Abrasive attachment system for rotative abrading applications
EP0710527A2 (en) * 1993-02-04 1996-05-08 Robert Bosch Gmbh Handtool for machining surfaces
US5605501A (en) * 1986-09-08 1997-02-25 Wiand; Ronald C. Lens surfacing pad with improved attachment to tool
EP1260317A2 (en) * 2001-05-13 2002-11-27 Jonni Nielsen Svend Hand grinding tool comprising a composite structure
US20090124176A1 (en) * 2007-11-09 2009-05-14 Araca Incorporated Removable polishing pad for chemical mechanical polishing
AT512572A1 (en) * 2012-06-05 2013-09-15 Berndorf Band Gmbh Polished plate with polishing cloth
US20150158142A1 (en) * 2013-12-09 2015-06-11 Saint-Gobain Abrasives, Inc. Abrasive article
US9914199B2 (en) 2013-12-09 2018-03-13 Saint-Gobain Abrasives, Inc. Abrasive disc
USD859767S1 (en) * 2017-07-07 2019-09-10 Inland Diamond Products Company Flexible abrasive pad
US10603759B1 (en) * 2014-01-30 2020-03-31 Csaba Imre Form-following rotary bit for improved grinding, sanding, buffing and the like
US11707812B2 (en) * 2019-05-31 2023-07-25 Kenneth Fox Towel quick connector pad

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US3164177A (en) * 1962-07-24 1965-01-05 Marx & Co Louis Toy convertible power shop
US3270467A (en) * 1963-07-01 1966-09-06 Merit Products Inc Abrasive device
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US3299584A (en) * 1964-07-22 1967-01-24 Mark H Landis Vacuum heads for disc grinders, sanders and the like
US3345785A (en) * 1964-12-07 1967-10-10 Warren N Riker Sanding disc assembly
US3436875A (en) * 1966-08-05 1969-04-08 Ralph R Cheney Abrasive disc holder
US3520090A (en) * 1968-01-29 1970-07-14 Donald Lee Surface finishing machine
US3522681A (en) * 1968-12-18 1970-08-04 Gerald Lampert Rubbing apparatus
US3883998A (en) * 1974-02-11 1975-05-20 Minnesota Mining & Mfg Fastening device for psa abrasive disc
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US4601661A (en) * 1980-07-21 1986-07-22 Minnesota Mining And Manufacturing Company Dental mandrel and detachable abrasive disk
US4988294A (en) * 1980-07-21 1991-01-29 Minnesota Mining And Manufacturing Company Detachable abrasive disk
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US5605501A (en) * 1986-09-08 1997-02-25 Wiand; Ronald C. Lens surfacing pad with improved attachment to tool
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US5201785A (en) * 1991-05-10 1993-04-13 Minnesota Mining & Manufacturing Company Disc-holder assembly
US5485918A (en) * 1991-11-04 1996-01-23 Minnesota Mining And Manufacturing Company Packaging assembly
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EP0710527A2 (en) * 1993-02-04 1996-05-08 Robert Bosch Gmbh Handtool for machining surfaces
EP0710527A3 (en) * 1993-02-04 1996-09-04 Bosch Gmbh Robert Handtool for machining surfaces
EP1260317A2 (en) * 2001-05-13 2002-11-27 Jonni Nielsen Svend Hand grinding tool comprising a composite structure
EP1260317A3 (en) * 2001-05-13 2003-08-06 Jonni Nielsen Svend Hand grinding tool comprising a composite structure
US7727052B2 (en) * 2007-11-09 2010-06-01 Araca Incorporated Removable polishing pad for chemical mechanical polishing
US20090124176A1 (en) * 2007-11-09 2009-05-14 Araca Incorporated Removable polishing pad for chemical mechanical polishing
AT512572A1 (en) * 2012-06-05 2013-09-15 Berndorf Band Gmbh Polished plate with polishing cloth
US20150158142A1 (en) * 2013-12-09 2015-06-11 Saint-Gobain Abrasives, Inc. Abrasive article
US9914199B2 (en) 2013-12-09 2018-03-13 Saint-Gobain Abrasives, Inc. Abrasive disc
US9914197B2 (en) * 2013-12-09 2018-03-13 Saint-Gobain Abrasives, Inc. Abrasive assembly having alignment elements
US10603759B1 (en) * 2014-01-30 2020-03-31 Csaba Imre Form-following rotary bit for improved grinding, sanding, buffing and the like
USD859767S1 (en) * 2017-07-07 2019-09-10 Inland Diamond Products Company Flexible abrasive pad
US11707812B2 (en) * 2019-05-31 2023-07-25 Kenneth Fox Towel quick connector pad

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