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...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 5626639 | Abrasive articles and method of making the same An abrasive article is provided which comprises a substrate having a surface bearing and abrasive layer and an opposite surface having a layer of pressure sensitive adhesive and a protective liner covering the layer of pressure sensitive adhesive. The lin... | 05/06/1997 |
| 5624303 | Polishing pad and a method for making a polishing pad with covalently bonded particles The present invention is a polishing pad for use in chemical-mechanical planarization of semiconductor wafers, and a method for making the polishing pad. The polishing pad has a body, molecular bonding links, and abrasive particles dispersed substantially... | 04/29/1997 |
| 5622233 | Elements faced with superhard materials A preform element, for example for use as a cutter in a rotary drill bit, includes a facing table of polycrystalline diamond bonded to a substrate of tungsten carbide. The rear surface of the facing table is integrally formed with a plurality of protubera... | 04/22/1997 |
| 5620489 | Method for making powder preform and abrasive articles made thereform A method for making abrasive articles uses a soft, easily deformable and flexible preform having a high binder content. The binder gives the preform its integrity, and is present in greater quantity than the retaining powder. The preform can have superabr... | 04/15/1997 |
| 5616386 | Cleaning sheet for a paper feeding device The present invention is intended to provide a cleaning sheet which is easy to handle and effective to clean a picker roller. A cleaning sheet coated with a cleaning adhesive is placed in a paper feeding cassette. A picker roller rotates thereby being cle... | 04/01/1997 |
| 5611828 | Method of making alumina abrasive grain having a metal boride coating thereon Method for providing an alpha alumina-based abrasive grain having metal boride on at least a portion of the outer surface thereof. The abrasive grain can be incorporated into a variety of abrasive products including bonded abrasive, nonwoven abrasive, and... | 03/18/1997 |
| 5603738 | Process and device for preparing an abrasive The present invention pertains to a process for preparing an abrasive based on corundum with a grain shape factor exceeding 0.6.... | 02/18/1997 |
| 5598621 | Method of making metal cutting inserts having superhard abrasive bodies A metal cutting insert is made by performing a sintering operation to form a substrate having a longitudinal axis and superhard abrasive bodies bonded thereto at longitudinally spaced locations. The substrate and superhard bodies are sliced-through in dir... | 02/04/1997 |
| 5588975 | Coated grinding tool Grinding tools are provided having a composite working surface with a metal bonding material coated with a modulated composition of transition metal compounds. Titanium nitride and zirconium nitride are suitable compounds. A manufacturing method for such ... | 12/31/1996 |
| 5584896 | Coated abrasive article having diluent particles and shaped abrasive particles Seated abrasive articles containing particles having specified shapes. The coated abrasive comprises: a. a backing; b. at least one binder; c. an abrasive coating comprising shaped abrasive particles and diluent particles said at least one binder serving to bo... | 12/17/1996 |
| 5584146 | Method of fabricating chemical-mechanical polishing pad providing polishing uniformity In accordance with the present invention, a polishing pad useful for polishing a semiconductor-comprising substrate is disclosed. The polishing pad is constructed to include conduits which pass through at least a portion of and preferably through the enti... | 12/17/1996 |
| 5580634 | Coated abrasive backing The present invention provides a backing for a coated abrasive article, wherein the backing includes a tough, heat resistant, thermoplastic binder material, and an effective amount of a fibrous reinforcing material distributed throughout the thermoplastic... | 12/03/1996 |
| 5578096 | Method for making a spliceless coated abrasive belt and the product thereof A method of making a coated abrasive article and the product thereof, involving the steps of: providing an endless spliceless backing loop substrate; applying fibrous reinforcing material onto a major surface of the endless backing substrate by applying o... | 11/26/1996 |
| 5575825 | Abrasive An abrasive is produced by crushing a cured product of a phenol resin composition into particles, and washing with water and drying the particles. The phenol resin composition may comprise as principal constituents a phenol resin and an organic filler, or... | 11/19/1996 |
| 5573560 | Abrasive media containing a compound for use in barrel finishing process and method of manufacture of the same Abrasive media formed into shapes or packs containing a compound are disclosed. The abrasive media are formed from a synthetic resin material, and contain a compound and abrasives within the formed synthetic resin material. A method of manufacturing such ... | 11/12/1996 |
| 5573448 | Method of polishing wafers, a backing pad used therein, and method of making the backing pad A template-type wafer polishing method in which a plurality of wafers are polished while they are fitted in the corresponding number of circumferentially spaced engagement holes in a template blank, with the backsides of the respective wafers held by a ba... | 11/12/1996 |
| 5567503 | Polishing pad with abrasive particles in a non-porous binder A polishing pad comprises a carrier and layer of a non-porous thermoplastic polymer secured to a surface thereof and containing a mass of discrete abrasive particles, comprising diamond or cubic boron nitride, uniformly dispersed therein. The abrasive par... | 10/22/1996 |
| 5567214 | Process for production of alumina/zirconia materials A process is described for the production of alumina/zirconia materials which uses cheap scrap alumina/zirconia/silica material as feedstock along with a reducing agent to lower the final silica content to an acceptable level.... | 10/22/1996 |
| 5565010 | Method of manufacturing foam rubber plastic cleaning apparatus Cleaning apparatus for restoring motor vehicle wiper blades comprising a pad of spongy material having an elongate abrasive-lined groove therein. The surfaces of wiper blades can be restored by working the abrasive groove of the pad to and fro on rubberiz... | 10/15/1996 |
| 5564511 | Composite polycrystalline compact with improved fracture and delamination resistance A polycrystalline compact cutting element for use in operations that require high impact and abrasion resistance. The compact includes a substrate formed of tungsten carbide or other hard material with a diamond or cubic boron nitride layer bonded to a mo... | 10/15/1996 |
| 5560754 | Reduction of stresses in the polycrystalline abrasive layer of a composite compact with in situ bonded carbide/carbide support The present invention is directed to polycrystalline diamond and cubic boron nitride (CBN) composite compacts and a method of making the same under high temperature/high pressure (HP/HT) processing conditions, and more particularly to HP/HT polycrystallin... | 10/01/1996 |
| 5536282 | Method for producing an improved vitreous bonded abrasive article and the article produced thereby A method is provided that produces grinding wheels which exhibit improved burn reduction or prevention, lower power consumption and increased penetration of metalworking fluid into the grinding zone in high metal removal rate grinding operations such as f... | 07/16/1996 |
| 5531799 | Ceramic corundum abrasive An improved ceramic corundum abrasive is achieved by addition of tin. Preparation is preferably by the sol-gel process, with further modifying components such as magnesium, lithium, cobalt, yttrium, hafnium, iron, rare earths, gamma-aluminium oxide alread... | 07/02/1996 |
| 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 |
| 5529589 | Fiber media blasting material, method of recycling same, and equipment for discharging same The invention relates to an improved blasting media which has a lattice fiber structure which is used as a carrier for other desired components. Desired abrasive component(s), polishing component(s) and/or absorptive component(s) are attached to the stran... | 06/25/1996 |
| 5520712 | Abrasive cleaning balls and to methods and devices for manufacturing them An abrasive cleaning ball (1) is made of a mass of sponge rubber filled with abrasive grains (2) intimately mixed within the mass. The grains are constituted by short lengths of a wire made of an abrasive material that is polygonal in section, preferably ... | 05/28/1996 |
| 5505748 | Method of making an abrasive compact A method of producing an abrasive compact, particularly a diamond abrasive compact, is provided. The method uses conventional compact manufacture conditions and is characterized by the mass of abrasive particles which is used. This mass has an average par... | 04/09/1996 |
| 5503648 | Process for the production of grinding tools and tools produced thereby The subject of the invention is a process for the production of grinding tools which have a basic body carrying an abrasive coating. The abrasive coating has hard-material grains, such as diamond grains, which are held in a bond. In order to simplify the ... | 04/02/1996 |
| 5496385 | Internal finishing tool and method of making same A twisted stem helical internal abrading and finishing tool is formed from abrasive containing plastic strips having transverse offset slits along the lateral edges and a longitudinal middle unslit portion. The strips may be stacked with the longitudinal ... | 03/05/1996 |
| 5492548 | Rough edged refiner plate cutter bars A method for integrally applying a rough surface to the grooves of paper pulp refiner plates which involves placing the pattern for the plate into a mold and then applying to the desired surfaces of the pattern a mixture including a selected kind of ceram... | 02/20/1996 |
| 5468268 | Method of making an abrasive compact The invention provides a method of making an abrasive compact using conventional compact synthesis conditions. The method is characterized by the use of an ultra-hard abrasive particle mass comprising at least 25 percent by mass of ultra-hard abrasive par... | 11/21/1995 |
| 5458211 | Spade drill bit construction A spade in a bit body is disclosed to have a planar body shaped with two intersecting cutting faces. The cutting faces extend to side faces defining spade width for cutting a hole to gauge. Inserts positioned in the body are at the comer of the spade. The... | 10/17/1995 |
| 5453312 | Abrasive article, a process for its manufacture, and a method of using it to reduce a workpiece surface An abrasive article having a sheet-like structure having at least one major surface having deployed thereon a plurality of individual abrasive composites, each abrasive composite comprising a plasticizer and a plurality of abrasive particles dispersed in ... | 09/26/1995 |
| 5453104 | Process for durable sol-gel produced alumina-based ceramics and abrasive grain A sol-gel process of producing durable alpha alumina-based ceramic particularly useful as abrasive grain from alpha alumina monohydrate is improved by the addition of a nucleating agent. Improved abrasive products containing the durable ceramic abrasive g... | 09/26/1995 |
| 5449388 | Injection molded abrasive article and process An abrasive article produced by injection molding or the like, utilizing a thermoformable material with abrasive grit and secondary fillers intermixed homogeneously therein.... | 09/12/1995 |
| 5437754 | Abrasive article having precise lateral spacing between abrasive composite members The present invention provides a method of forming an abrasive article comprising the steps of providing an embossed carrier web having a plurality of recesses formed in the front surface thereof; filling the recesses with an abrasive composite slurry tha... | 08/01/1995 |
| 5432137 | Process for producing a highly crystalline, fine -alumina powder A novel process for producing highly crystalline, fine -alumina is disclosed. Aluminum hydroxide is calcined in the presence of fine silica powder. The obtained alumina is in the alpha form and has a specific surface area of least 10 m2 ... | 07/11/1995 |
| 5429545 | Pad for wetcleaning porcelain greenware and method A pad for cleaning porcelain greenware comprising an abrasive sheet for contacting and cleaning porcelain greenware; a foam backing member; and a glue secured to the abrasive sheet and to the foam backing member for securing together the abrasive sheet an... | 07/04/1995 |
| 5417726 | Coated abrasive backing The present invention provides a backing for a coated abrasive article, wherein the backing includes a tough, heat resistant, thermoplastic binder material, and an effective amount of a fibrous reinforcing material distributed throughout the thermoplastic... | 05/23/1995 |
| 5415674 | Cemented carbide substrate having a diamond layer of high adhesive strength An improved process for improving the adhesion between a cemented carbide substrate and a diamond layer deposited thereon by removing the binder phase of the cemented material from the surface of the substrate prior to diamond coating. For this purpose, t... | 05/16/1995 |
