Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7182681 | Sanding tool A hand-held, manually-operated, sanding tool for use with a replaceable sheet-like abrasive material, such as sandpaper, includes a base member and clamping mechanisms pivotally connected with opposed ends of the base member. The clamping mechanisms include tensioni... | 02/27/2007 |
| 7169025 | Grinding tool for a grinder with rotary oscillating drive Disclosed is a grinding tool for a grinder comprising a rotary oscillating drive, the output shaft of which is driven so as to oscillate back and forth about its longitudinal axis and is configured for securing the grinding tool thereon. The grinding tool comprises ... | 01/30/2007 |
| 7147550 | Holding apparatus for grinding members A holding apparatus for grinding members includes two clamping disks that have respectively a plurality of anchor plates and a plurality of anchor slots on different perimeters. The anchor plates and anchor slots may be wedged to form a mechanical interference betwe... | 12/12/2006 |
| 7134951 | Sheet holder for abrasive sheets A holder for flexible abrasive sheets. An abrasive sheet is gripped by a gripper actuated by a rotationally mounted cam pin that reciprocates a cam plate which pulls an edge of the sheet tightly against a backing surface so it can respond to oscillation of a sander ... | 11/14/2006 |
| 7131899 | Manual sanding machine tool A manual grinding tool, in particular an oscillating sander (10), with a housing (12) and an abrasive sheet carrier (14), against the working surface (15) of which an installable abrasive sheet (16; 150) rests, whereby said abrasiv... | 11/07/2006 |
| 7131900 | Grinding wheel in combination with a grinding ring A combination between a grinding ring and a grinding wheel is disclosed, wherein the grinding ring has a centrally defined hole, a tubular extension extending from a periphery defining the hole, an annular extension extending from an outer periphery of the tubular e... | 11/07/2006 |
| 6945863 | Rotary finishing disc A flap disc includes a backing disc having an inner radial portion and abrasive flaps secured to an outer radial portion of the backing disc in an overlapping manner. First and second metal reinforcement rings include a body contacting one of front and rear surfaces... | 09/20/2005 |
| 6840849 | Mounting device for coated abrasive finishing articles A reusable mounting device which includes a support member having a support pad (32) secured to a hollow cylindrical body (42) by way of a compression ring (46). The hollow body defines a recess which receives a nut (18) that is adapted t... | 01/11/2005 |
| 6790135 | Finishing machine having a sandpaper positioning function A finishing machine having a sandpaper positioning function includes a frame, a rotation wheel rotatably mounted on the frame, a sandpaper bonded on the rotation wheel, and an O-ring mounted on the rotation wheel and urged on the sandpaper. The rotation wheel has a ... | 09/14/2004 |
| 6634937 | Clamping sander A clamping sander for receiving and holding a sheet of sandpaper, including a chassis plate having an upper surface and a lower surface, and a clamp plate having an upper surface and a lower surface. The clamp plate is coupled to the chassis plate and mov... | 10/21/2003 |
| 6612914 | Platen with lateral web tensioner Generally, a method and apparatus for retaining a web of polishing material is provided. In one embodiment, an apparatus for retaining a web of polishing material includes a platen that has a first clamp and a second clamp disposed on opposite sides of th... | 09/02/2003 |
| 6454643 | Sander with a sanding pad A sander including a motor-driven rectangular base plate (1), and a locking mechanism (2) for releasably attaching a sanding pad (3) to the base plate (1) and including at least one pawl (6, 7) provided on each of the font side (21) of the base plate (1) ... | 09/24/2002 |
| 6035474 | Sander with depth guide and process of sanding a surface A sander is mounted in a cavity in a guide block so as to have an abrasive surface protruding from a bottom surface to a selectively variable extent. The bottom surface of the guide block acts as a depth guide when engaging a flat surface adjacent to a su... | 03/14/2000 |
| 5938514 | Disk attachment system Rapidly releasable attachment of an abrasive disk to a rotary grinder is provided by fitting the disk with a disk retention adapter which clamps onto the disk and is provided with retention means extending from the non-abrasive bearing surface, a also pro... | 08/17/1999 |
| 5902176 | Clamping device for a sanding tool A clamping device a sanding tool is comprised of a fixing body, a spring, a clamping plate, a pressing block and a buffer body; wherein, the fixing body is a rectangular base on the proper position of the center of which is installed with a high projected... | 05/11/1999 |
| 5820448 | Carrier head with a layer of conformable material for a chemical mechanical polishing system A carrier head for a chemical mechanical polishing apparatus. The carrier head includes a housing with a recess. A flexible membrane defines an enclosed volume in the recess. A conformable material is disposed in the enclosed volume. The conformable mater... | 10/13/1998 |
| 5700183 | Sanding wheel assembly A sanding wheel assembly is provided which allows the operator to quickly change and replace worn sanding belts. The device includes a pinion joined to a rachet wheel which controls a series of tensioning levers. A manual latch secures a rachet wheel. As ... | 12/23/1997 |
| 5531639 | Smoothing mill with suction, by depression in three stages, of dust so generated Smoothing mill for compressed ejectors (3,4) of several stages, incorporated, for suction of dust generated and for conveying it through a flexible tube (19) to a collecting area, use being made of the compressed air discharged from the motor (40) which s... | 07/02/1996 |
| 5392569 | Edger sanding tool One aspect of the invention provides a sanding tool including a first rigid member having a first planar surface. There is an elongated groove along the surface which receives an edge of a sheet of sandpaper. The sandpaper is supported by a second rigid m... | 02/28/1995 |
| 5323507 | Device for surface cleaning A device is disclosed for manually cleaning surfaces. The device has an angled tubular body having at one end an elastically deformable member with a central opening for holding a paper sheet. The paper sheet is affixed to the elastically deformable membe... | 06/28/1994 |
| 5222331 | Abrading assembly An abrading assembly including a back up pad comprising a self supporting, resiliently flexible circular support layer and a flexible abrasive sheet. The abrasive sheet includes a circular central portion having a size generally corresponding to a front s... | 06/29/1993 |
| 5168672 | Sanding block An abrasive paper sheet holder having a base provided with clamping shoulders formed in a pair of opposed side edges thereof. A handle member is detachably secured over a rear surface of the base. The handle member has opposed flexible flange walls for cl... | 12/08/1992 |
| 4850158 | Method of making buffing wheel A buffing wheel in which the strap of ductile metal encircles and abuts the circular body member from whose peripheral edges the teeth which engage the annulus of buffing fabric extend. Each pair of successive teeth defines between them an angle having a ... | 07/25/1989 |
| 4799338 | Buffing wheel A buffing wheel in which the strap of ductile metal encircles and abuts the circular body member from whose peripheral edges the teeth which engage the annulus of buffing fabric extend. Each pair of successive teeth defines between them an angle having a ... | 01/24/1989 |
| 4307480 | Rotating pad support structure for floor buffing machine A rotating pad support structure for a floor buffing machine adapted to secure and mount in contact with a floor to be buffed and to rotationally drive a flexible circular floor buffing pad. The structure comprises a drive disc which is normally supported... | 12/29/1981 |
| 4196548 | Sanding apparatus Apparatus is disclosed for the surface sanding and fine finishing of contoured workpieces of wood or other similar fibrous material. A rotatable disc-like member having a contoured working surface is provided with surface recesses to accommodate a mating ... | 04/08/1980 |
