Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 6312325 | Sanding disks Accessories for an angle grinder include a disposable rotary sanding disk having quite large shaped ventilating/viewing apertures, for use with a resilient backing plate also having shaped ventilating apertures. The apertures of one or both parts are shap... | 11/06/2001 |
| 6293980 | Production of layered engineered abrasive surfaces Coated abrasives comprising shaped structures deposited on a backing can be given increased versatility can be made by a process in which the shaped structure is imposed on a structure deposited in layers on the backing before the shaped structures are fo... | 09/25/2001 |
| 6280288 | Process for determining optimum grinding conditions The invention provides a useful tool for advising customers for abrasive tools on the selection of optimum grinding conditions for the use of a specific tool wherein the tool is in the form of a performance map generated from a plurality of data points ob... | 08/28/2001 |
| 6261328 | Dimensionally stable abrasive discs This invention describes a method of making abrasive products such as discs with enhanced resistance to deformation as a result of the influence of moisture by laminating a coated abrasive having a fibrous backing lacking dimensional stability when expose... | 07/17/2001 |
| 6258136 | Fixed abrasives for optical polishing An optical polishing tool comprises alpha alumina and ceria components in relative weight proportions of from 30:70 to 70:30 dispersed in a resin binder. Particularly preferred are coated abrasives. Such coated abrasives produce an improved optical polish... | 07/10/2001 |
| 6258413 | Method of making self-lubricating bearing A method is provided for fabricating a self-lubricating bearing as a laminate of a metallic substrate and a series of raised structures formed integrally therewith and extending orthogonally therefrom. A fluoropolymer sliding or bearing layer is superpose... | 07/10/2001 |
| 6257973 | Coated abrasive discs The invention provides individually made abrasive discs with the primary abrasive surface around the periphery of the disc where the bulk of the abrading action occurs when the disc is in use. The invention also provides a process by which these discs can... | 07/10/2001 |
| 6251149 | Abrasive grinding tools with hydrated and nonhalogenated inorganic grinding aids A bonded-abrasive tool includes a matrix of an organic bond, abrasive grains dispersed in the organic bond and a grinding aid in the form of either an inorganic nonhalogenated filler or a hydrated filler. The inorganic nonhalogenated filler can react with... | 06/26/2001 |
| 6245443 | Removable bond for abrasive tool A bond for a metal single layer abrasive tool can be easily chemically and electrochemically stripped from the metal core of a recovered used tool to facilitate reuse of the core. Relative to conventionally bonded tools, the speed of stripping the novel b... | 06/12/2001 |
| 6244947 | Wire brush attachment for angle grinder Accessories for an angle grinder include a rotary disk tool having a working zone around the periphery of the disk comprising a plurality of wire bristles and a rest means for supporting the grinder on a surface to be shaped. The rest means may be a non-r... | 06/12/2001 |
| 6227188 | Method for improving wear resistance of abrasive tools A drill bit is provided with a cylindrical body portion fabricated from a plastic material. The body portion is fastened in concentric, end to end relation to a cylindrical cutter fabricated from a metallic material and having an array of cutting elements... | 05/08/2001 |
| 6200208 | Superabrasive wheel with active bond A straight, thin, monolithic abrasive wheel formed of hard and rigid abrasive grains and a sintered bond including a metal component and an active metal component exhibits superior stiffness. The metal component can be selected from among many sinterable ... | 03/13/2001 |
| 6187070 | Enhanced radiation cure Production of a finished fabric backing for use in the production of a coated abrasive is performed using a dual cure system comprising a radiation curable binder and a thermal initiator in which polymerization is initiated by the use of radiation until t... | 02/13/2001 |
| 6187071 | Bond for abrasive tool A bond for a single layer metal bond abrasive tool can be easily chemically and electrochemically stripped from the metal core of a recovered used tool to facilitate reuse of the core. Relative to conventionally bonded tools, the speed of stripping the no... | 02/13/2001 |
| 6173470 | Brush attachment for grinder The invention provides a wire brush disc shaped grinder accessory that has segments removed from the circumference of the disc to provide visibility of the work surface while in use and with the bristles of the wire brush arranged in groups around the dis... | 01/16/2001 |
| 6162322 | Method for fabricating abrasive tools Methods for orienting fibers and an apparatus for orienting fibers are provided for the fabrication of improved thin abrasive wheels utilizing uniform non-woven fiber reinforcement discs. The wheels are more resistant to hub push-out failure during grindi... | 12/19/2000 |
| 6159089 | Grinding system The invention describes an abrasive system comprising a fiber-backed abrasive disc and a backup pad in which the backup pad has spaced portions removed from the circumference such that the disc overlaps in the area of the removed portions. This has the ef... | 12/12/2000 |
| 6136288 | Firing fines Fine powders of ceramic materials can be obtained by firing a precursor powder in a rotary kiln while carried on coarse carrier particles.... | 10/24/2000 |
| 6123743 | Glass-ceramic bonded abrasive tools The present invention provides an abrasive tool that comprises sol-gel alumina abrasive grains bonded together by a glass-ceramic bond material, the tool comprising from about 35 to 65% by volume void spaces, wherein at least about 75% of the volume of th... | 09/26/2000 |
| 6112739 | Method for high speed cutting The present invention is a method of using a high speed cutting belt for cutting various aggregate and non-aggregate, natural stone and composite building materials with steel or non-steel reinforced materials. The cutting belt comprises a tensile member ... | 09/05/2000 |
| 6102789 | Abrasive tools Abrasive tools suitable for precision grinding of hard brittle materials, such as ceramics and composites comprising ceramics, at peripheral wheel speeds up to 160 meters/second are provided. The abrasive tools comprise a wheel core attached to an abrasiv... | 08/15/2000 |
| 6102024 | Brazed superabrasive wire saw and method therefor A wire saw has a small diameter metal wire and a layer of abrasive grains firmly affixed to the wire surface by a brazed active metal bond. Preferably, the grains are present in a single layer. The grains are disposed on the surface of the wire in a prese... | 08/15/2000 |
| 6096107 | Superabrasive products Coated abrasives with engineered abrasive surfaces are produced using superabrasive particles mixed with metal particles in a cold-forming process.... | 08/01/2000 |
| 6093092 | Abrasive tools Abrasive tools suitable for precision grinding of hard brittle materials, such as ceramics and composites comprising ceramics, at peripheral wheel speeds up to 160 meters/second are provided. The abrasive tools comprise a wheel core attached to an abrasiv... | 07/25/2000 |
| 6086648 | Bonded abrasive articles filled with oil/wax mixture An abrasive article is provided for precision grinding purposes, and the article comprises 3 to 25 volume % vitreous bond, 3 to 56 volume % MCA abrasive grain, and 28 to 63 volume % open porosity. Substantially all porosity in the abrasive article is impr... | 07/11/2000 |
| 6077156 | Grinding disc Abrasive discs with spaced portions removed from the circumference in the form of rounded and elongated V-shapes provide, when in use, complete vision of a workpiece being abraded with reduced tendency to snag on obstructions.... | 06/20/2000 |
| 6074278 | High speed grinding wheel A method of obtaining superabrasive grinding performance from tools employing less expensive, non-superabrasive conventional abrasive grain involves operating the conventional abrasive tool at ultra high tangential contact speed, (that is at least about 1... | 06/13/2000 |
| 6066189 | Abrasive article bonded using a hybrid bond Bonded abrasive products comprising alumina-based abrasive grains and a geopolymer bond system are significantly improved by providing the grain with a vitreous coating before incorporation in the geopolymer bond.... | 05/23/2000 |
| 6062965 | Backup pad for rotary grinder This invention provides an improved backup pad for an abrasive disk adapted to permit a view of surface as it is being ground which comprises a compressible pad and a relatively rigid support member laminated to the pad that has shorter radial dimensions ... | 05/16/2000 |
| 6056795 | Stiffly bonded thin abrasive wheel A straight, thin, monolithic abrasive wheel formed of hard and rigid abrasive grains and a sintered metal bond including a stiffness enhancing metal component exhibits superior stiffness. The metals can be selected from among many sinterable metal composi... | 05/02/2000 |
| 6048577 | Nano-sized alpha alumina particles having a silica coating thereon Nano-sized powders of alpha alumina can be obtained from a boehmite gel doped with a barrier-forming material such as silica that is then dried, fired and comminuted to powder form.... | 04/11/2000 |
| 6048375 | Coated abrasive Abrasive tools, such as coated abrasives, made using radaition curable resin binders can be given a greater depth of cure of the binder if they include an acylphosphine oxide initiator.... | 04/11/2000 |
| 6033295 | Segmented cutting tools Segmented cutting tools such core drill bits and diamond saw blades can be made more efficient by hardening a portion of the sides of each of the segments.... | 03/07/2000 |
| 6019668 | Method for grinding precision components A method for precision cylindrical grinding of hard brittle materials, such as ceramics or glass and composites comprising ceramics or glass, provides material removal rates as high as 19-380 cm3 /min/cm. The abrasive tools used in the method c... | 02/01/2000 |
| 6019805 | Abrasive filaments in coated abrasives A coated abrasive material comprising a substrate and maker coat and adhered by means of the maker coat a plurality of abrasive grits in the form of U-shaped particles or coils.... | 02/01/2000 |
| 6015338 | Abrasive tool for grinding needles Abrasive tools and a grinding process are for use in the manufacture of hypodermic needles. In particular, a formulation including selected bond components, and a process for manufacturing grinding wheels having an embrittled bond permits a new method for... | 01/18/2000 |
| 6007415 | Sanding disks Accessories for an angle grinder include a disposable rotary sanding disk having quite large shaped ventilating/viewing apertures, for use with a resilient backing plate also having shaped ventilating apertures. The apertures of one or both parts are shap... | 12/28/1999 |
| 5997597 | Abrasive tool with knurled surface An abrasive tool includes a steel core having at least one cutting face which is knurled to provide a uniform texture of recesses of predetermined size. A single layer of abrasive grain such as diamond, synthetic diamond, and/or cubic boron nitride having... | 12/07/1999 |
| 5989112 | Universal abrasive disc Abrasive discs for use with orbital sanders having dust extractor systems are provided in which the discs are adapted for use with orbital sanders having different patterns and numbers of dust extractor holes.... | 11/23/1999 |
| 5980597 | Color stable coated abrasives A coated abrasive comprising maker and size coats with improved color stability is obtained by the use of a bisphenol/formaldehyde resin binder in either the maker or, more preferably, the size coat.... | 11/09/1999 |
