Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7918716 | Mating systems and methods for joining coated abrasives Mating systems and methods for joining coated abrasives. The mating system comprises mating portions positioned at coated abrasive end portions. Complimentary mating portions may be used to join coated abrasives without glue or mechanical attachment. The mating syst... | 04/05/2011 |
| 7435161 | Multi-layer polishing pad material for CMP The invention is directed to a multi-layer polishing pad for chemical-mechanical polishing comprising a porous polishing layer and a porous bottom layer, wherein the bottom layer is substantially coextensive with the polishing layer, the polishing layer being joined... | 10/14/2008 |
| 7410413 | Structured abrasive article and method of making and using the same A structured abrasive article comprises a backing, a structured abrasive layer affixed to the backing, the structured abrasive layer comprising: a plurality of raised abrasive regions, each raised abrasive region consisting essentially of a close-packed plurality of... | 08/12/2008 |
| 7134953 | Endless abrasive belt and method of making the same Endless abrasive belt useful for polishing or otherwise abrading surfaces. ... | 11/14/2006 |
| 7077737 | Flexible file and file dispenser system A flexible file system for providing abrasive files that can be used for wood or metal working that can be supplied in different sizes, stiffness and with different types of abrasive surfaces in different cross-sections. These flexible files can be attached to form ... | 07/18/2006 |
| 7052426 | Seamed, conformable belt and method of making A seamed, conformable belt including a substrate having first and second opposing substantially planar surfaces, a first end, and a second end, wherein the first end and the second end of the substrate form a first seam, and an elastomeric layer having a first end a... | 05/30/2006 |
| 7029555 | Diagonally joined cylindrical fabric and manufacturing method thereof A diagonally joined cylindrical fabric in the form of a cylindrical endless fabric is obtained by shifting ends of facing wefts of a non-endless fabric leftward or rightward and joining together the ends of the wefts to thereby form a joining portion inclined relati... | 04/18/2006 |
| 6736714 | Polishing silicon wafers An endless belt for a belt type polishing machine comprises a support fabric and a polymer layer of relatively low hardness. The polymer layer is formed with drainage grooves. The support fabric may comprise a non woven or woven material, or a membrane with oriented... | 05/18/2004 |
| 6733373 | Polishing assembly for a linear chemical mechanical polishing apparatus and method for forming A polishing assembly for use in a linear chemical mechanical polishing apparatus and a method for forming such assembly are described. In the polishing assembly, a plurality of polishing pads are adhesively joined to a top surface of a continuous belt. Each of the p... | 05/11/2004 |
| 6595842 | Abrasive pad and method of making same An abrasive pad removably attachable to a driven rotatable shaft and including a plurality of angularly offset abrasive members. Each abrasive member includes an outwardly facing surface having an abrasive disposed thereon. A first abrasive member is part... | 07/22/2003 |
| 6231427 | Linear polisher and method for semiconductor wafer planarization A wafer polisher and method for the chemical mechanical planarization of semiconductor wafers. The polisher includes a wafer holder for supporting the semiconductor wafer and a linear polishing assembly having a polishing member positioned to engage the s... | 05/15/2001 |
| 5951383 | Grinding and polishing belt The invention relates to grinding belts and polishing belts, which are particularly suitable for processing enclosed constructions, since they can be re-sealed by simple means and manner after severing to form a ring-shaped endless belt.... | 09/14/1999 |
| 5881610 | Bandsaw blade A method of making a cutting blade using a fiber composite tape formed into a continuous closed loop. The tape is selected and prepared such that at least some of the fibers form an acute angle with the cutting edge.... | 03/16/1999 |
| 5840141 | Splice means, a method of splicing an abrasive article with same and the spliced abrasive article formed thereby A splice having (a) a support comprising a polymeric film having a major surface; and (b) a fiber reinforcement comprising a plurality of monofilaments where the monofilaments have longitudinal axes extending in a parallel direction, one to another, acros... | 11/24/1998 |
| 5700188 | Coated abrasive belt A coated abrasive belt with an abrasive grain layer on one side of a flexible substrate. The substrate comprises a longitudinal strength layer (4, 5) and a transverse strength layer (6, 7). The edges of successive coated abrasive belt portions are adhesiv... | 12/23/1997 |
| 5595804 | Splice means, a method of splicing an abrasive article with same and the spliced abrasive article formed thereby A splice means having a support means comprising a polymeric film having a major surface; and (b) a fiber reinforcement means comprising a plurality of monofilaments where the monofilaments have longitudinal axes extending in a parallel direction, one to ... | 01/21/1997 |
| 5573619 | Method of making a coated abrasive belt with an endless, seamless backing A coated abrasive backing consisting of an endless, seamless, loop is provided. The backing loop includes about 40-99% by weight of an organic polymeric binder, based upon the weight of the backing; and an effective amount of a fibrous reinforcing materia... | 11/12/1996 |
| 5529590 | Process for the manufacture of endless coated abrasive articles A method for making a spirally wound endless coated abrasive belt comprising an abrasive layer bonded to a backing laminate material comprising a flexible support and a hot-melt adhesive layer.... | 06/25/1996 |
| 5427566 | Flexible honeycomb panel containing wire or other abrasive material A flexible honeycomb panel containing wire or other abrasive material for abrading a workpiece, including a honeycomb core embedded with a quantity of abrasive material, and a facing sheet. The honeycomb core is formed of undulating strips of resilient th... | 06/27/1995 |
| 5341609 | Abrasive belts and their manufacture This invention provides a coated abrasive belt having a backing comprising a hot-melt adhesive, and a method of making the same. The splice of the endless coated abrasive belt according to the present invention has substantially the same thickness, densit... | 08/30/1994 |
| 5305560 | Method of splicing endless abrasive belts and cones Splices of endless abrasive belts and cones can be formed without emission of organic volatiles by employing as the splicing adhesive an aqueous adhesive dispersion that is a blend of a polyurethane and a polyisocyanate crosslinking agent.... | 04/26/1994 |
| 5256227 | Method of splicing endless abrasive belts and cones Splices of endless abrasive belts and cones can be formed without emission of organic volatiles by employing as the splicing adhesive an aqueous adhesive dispersion that is a blend of a polyurethane and a polyisocyanate crosslinking agent.... | 10/26/1993 |
| 4841684 | Surface-finishing member A surface finishing member having an extended working surface adapted for movement repetitively across the surface of an object to be finished, and a method of its manufacture. The member has a body formed of a reinforcement layer lying generally parallel... | 06/27/1989 |
| 4736549 | Abrasive belt with a joint extending transversely to its longitudinal direction Abrasive belt with an abrasive-grain layer on a base containing a textile terial, and with a joint extending transversely to its longitudinal direction. The latter contains a joining strip in a rebate on the side of the base facing away from the abrasive-... | 04/12/1988 |
| 4589233 | Sectional abrasive belt A sectional cloth backed abrasive belt comprising a series of abrasive coated cloth backed sections joined together so that the joints between sections are at an angle of from about 45°, to about 85° to the running direction of the belt. The cloth backi... | 05/20/1986 |
| 4525959 | Abrasive finishing tool A hand-held finishing tool includes a forked member with a removable wedge which combine to enable retention of a continuous abrasive belt optionally having two strips with different abrasive grits. Adjoining planar surfaces, angularly related to facilita... | 07/02/1985 |
| 4219974 | Copy-grinding apparatus This invention relates to apparatus for copy-grinding workpieces consisting particularly of wood or a similarly grindable material, e.g. aluminum, and having an uneven surface, such apparatus comprising a rotatable clamping device for receiving a workpiec... | 09/02/1980 |
| 4215516 | Unidirectional tape A splicing system for the butt splicing of endless flexible abrasive belts which employs an adhesive having a multiplicity of unidirectionally oriented reinforcing fibers spanning the butt-joint to form a durable long lasting splice. The fibers which are ... | 08/05/1980 |
| 4027435 | Coated abrasive article containing a polyurethane adhesive splice An adhesive composition which, in the preferred aspects of the invention, is a partially cured reaction product of the composition in the form of a dried, preformed film that is heat-activatable, is provided comprising in admixture a poly-functional activ... | 06/07/1977 |
| 4024302 | Method for coating running webs having projecting splices In a method for continuously coating with a coating solution a plurality of running webs having discontinuous areas in the surface thereof, the improvement which comprises coarsening at least the surface of the web coated in the area of the web immediatel... | 05/17/1977 |
| 4018574 | Process for the manufacture of endless coated abrasive articles An endless coated abrasive article is formed by helically winding a strip of abrasive material into a spiral of coils, the edges of which are in abutting engagement thus forming a spiral butt joint and coating the inner periphery of the helically wound st... | 04/19/1977 |
