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| Number | Title | Issue Date |
| 8038514 | Milling tool A milling tool includes a cylindrical base and a plurality of abrasive grain clusters. The cylindrical base is centrally formed with a through-hole, and has an annular surface extending around the through-hole, a peripheral surface extending perpendicularly to the a... | 10/18/2011 |
| 7972200 | Abrading wheel with sintered metal core Article and method of making an abrading wheel having a sintered metal core and radially inward openings having curved inner edges to reduce stress in operation and to improve the ability of the wheel to clear residue from the wheel during operation. ... | 07/05/2011 |
| 7744447 | Abrasive disc An abrasive disc comprises a disc substrate having a peripheral portion, plural abrasive chips each having an abrasive layer on a metal piece and being arranged in the peripheral portion of the disc substrate with a predetermined space, a suspension plate placed bet... | 06/29/2010 |
| 7410410 | Method and apparatus to produce a GRM lapping plate with fixed diamond using electro-deposition techniques A system and method are described for manufacturing a lapping plate. Diamond particles are premixed with a metal matrix. The diamond particles are electro-deposited onto the surface of a lapping plate. The lapping plate may have a substrate of hard metal with a soft... | 08/12/2008 |
| 7393269 | Abrasive filter assembly and methods of making same An abrasive filter assembly with an integral dust collection system. The abrasive filter assembly comprises a porous element, a first filter media with channels, a second filter media, and an attachment interface layer. The openings of the porous element cooperate w... | 07/01/2008 |
| 7377837 | Grinding or polishing arrangement A grinding or polishing machine or device having a grinding or polishing disc for grinding or polishing a work piece for the condition of the work piece placed against the lower surface of the grinding or polishing disc. The grinding or polishing disc has a pluralit... | 05/27/2008 |
| 7367874 | Mandrel for working disks A mandrel or a clamping element for working disks, for example, separating disks, grinding disks and/or polishing disks, contains a shaft to fix the mandrel to a receiving element or to a clamping element of a working machine. The mandrel has a fixing element for de... | 05/06/2008 |
| 7367872 | Conditioner disk for use in chemical mechanical polishing A conditioner disk for use on a polish pad in chemical mechanical polishing process includes a base structure a plurality of curved blades supported by the base structure. The blades radiate outwardly from a center region of the base structure and curve in a common ... | 05/06/2008 |
| 7364497 | Polish pad and chemical mechanical polishing apparatus comprising the same A polishing pad for use in chemically mechanically polishing a semiconductor substrate enhances the uniformity of the rate at which material is removed from the surface of the semiconductor substrate, thereby ensuring the reproducibility of the chemical mechanical p... | 04/29/2008 |
| 7364502 | Cutting wheel The present invention relates to an improved cutting wheel, comprising a disk-shaped abrasive body having two opposite faces and a non-uniform thickness. ... | 04/29/2008 |
| 7357702 | Grinding wheel The present invention refers to an improved grinding wheel, comprising an abrasive and/or cutting disk-shaped member that can be associated substantially coaxially with the free end of the rotating shaft of a grinding machine and equipped with at least one substanti... | 04/15/2008 |
| 7357705 | Diamond disk A novel diamond disc is disclosed. The diamond disc comprises a plurality of diamond grains 2 bound on a disc. The diamond grains 2 are arranged in such a manner that a distance m1 between diamond grains 2 which are located on a common ro... | 04/15/2008 |
| 7354527 | Chemical mechanical polishing pad and chemical mechanical polishing process A chemical mechanical polishing pad which has a storage elastic modulus E′(30° C.) at 30° C. of 120 MPa or less and an (E′(30° C.)/E′(60° C.)) ratio of the storage elastic modulus E′(30° C.) at 30° C. to the storage elastic modulus E′(60° C.) at 60Â... | 04/08/2008 |
| 7351133 | Disc grinding wheel with integrated mounting plate A bonded abrasive grinding wheel is provided with a bonded abrasive disc including abrasive grain disposed within a bond matrix, and a mounting plate integrally fastened to the disc. In various embodiments, the mounting plate has a plurality of non-metallic first th... | 04/01/2008 |
| 7350518 | Blade ring saw blade A flat-sided annular blade for a blade ring saw for cutting hard material such as tile along straight paths and curved paths in which the workpiece is moved through the central portion of the blade. In addition to the usual sintered abrasive diamond coating on the o... | 04/01/2008 |
| 7344573 | Impregnation of grinding wheels using supercritical fluids An additive impregnated abrasive article and method for fabricating the same is provided. The method includes providing an abrasive article having a pore structure, dissolving an additive in a supercritical fluid, and exposing the abrasive article to the additive-la... | 03/18/2008 |
| 7329175 | Abrasive article and methods of making same A porous abrasive article that allows air and dust particles to pass through. The abrasive article has a screen abrasive and a porous attachment interface. The screen abrasive has an abrasive layer comprising a plurality of erectly oriented abrasive particles and at... | 02/12/2008 |
| 7318770 | Grinding wheel with sand paper items The present invention concerns a grinding wheel (1) including a circular wheel that rotates about a central axis and with a surface (2) to which edge parts of a number of sand paper items (3) are fastened, and that the surface (2) has inc... | 01/15/2008 |
| 7316600 | Metal working method to reduce thermal damage A method for grinding a feature in a work-piece is set forth which includes the step of rotating a grinding wheel about a first axis. The method also includes the step of traversing the rotating grinding wheel and a work-piece relative to one another along a second ... | 01/08/2008 |
| 7311592 | Conductive polishing article for electrochemical mechanical polishing An article of manufacture and apparatus are provided for planarizing a substrate surface. In one aspect, an article of manufacture is provided for polishing a substrate including polishing article comprising a body having at least a partially conductive surface adap... | 12/25/2007 |
| 7303464 | Contact wheel A composite contact wheel, grinding assemblies comprising the same, and methods of abrading cylindrical workpieces using coated abrasive belts. ... | 12/04/2007 |
| 7302946 | Industrial scarifier assembly A scarifier assembly including a generally rectangular shaped case with a hollow interior, a resilient generally rectangular pad located in the hollow interior of the case, and a removable work performing surface insert having work surfaces for grinding, cutting or ... | 12/04/2007 |
| 7300341 | Dental grinding tool and method for making the same The present invention provides a dental grinding tool which is unlikely to damage gums and capable of finely shaping a formation part on which a crown is placed, and further provides a method for making the same. The dental grinding tool is made by forming a chamfer... | 11/27/2007 |
| 7300342 | Scratch removal device and method A polishing wheel including a lower polishing surface and defining a different color from a secondary portion of the polishing wheel, so as to indicate wear of the polishing surface. The polishing surface includes a plurality of main radial flutes extending from a c... | 11/27/2007 |
| 7285233 | Method of manufacturing polishing pad A method of manufacturing a polishing pad is described. A mold having a mold cavity therein is provided. At least a strip is buried in the mold. A polymer foam material is injected into the mold cavity of the mold. The polymer foam material is cured to mold the poly... | 10/23/2007 |
| 7281970 | Composite articles and methods of making the same Composite articles (e.g., abrasive articles (e.g., abrasive wheels and honing sticks), cutting tools, and cutting tool inserts) comprising a glass-ceramic distributed in a ceramic matrix. ... | 10/16/2007 |
| 7275302 | Method of forming a disc pack A method of forming a disc pack for use in a disc drive is provided. The method includes forming at least one alignment feature between an inner diameter and an outer diameter of each of a plurality of discs. The at least one alignment feature of a first disc of the... | 10/02/2007 |
| 7261622 | Multiple cutting edged sanding wheel An improved sanding wheel configured to rotate axially for sanding or polishing milled contours that will provide sharp edges and corners in the workpiece. The preferred sanding wheel has a cylindrical body with a plurality of segments extending radially from the bo... | 08/28/2007 |
| 7261621 | Pad conditioner for chemical mechanical polishing apparatus A pad conditioner may include a surface having a first region including a portion having relatively irregular shaped and friable polishing particles, and a second region including a portion having relatively regular shaped and tough polishing particles. The relative... | 08/28/2007 |
| 7255513 | Diamond trowel blade A diamond trowel blade 20 comprises diamond particles that will attach to a power trowel for surface preparation of hardened concrete surfaces. The diamond trowel blade includes a diamond bearing surface 22, for preparing the concrete surface; a backin... | 08/14/2007 |
| 7252579 | Apparatus and process for cylindrically grinding workpieces An apparatus for cylindrically grinding workpieces includes a first holding tool (10), a second holding tool (12), and a grinding wheel (14). The first holding tool is configured for positioning un-ground workpieces (18), and the first ho... | 08/07/2007 |
| 7241204 | Polishing pad, method of producing same and method of polishing A polishing pad has a resin sheet having a flat surface and abrading particles fixed inside and on the surface of this resin sheet. Its tensile strength is in the range of 30 MPa or greater and 70 MPa or less and preferably in the range of 40 MPa or greater and 60 M... | 07/10/2007 |
| 7220091 | Fastening nuts with loosening assist functions A fastening nut includes an operation member, a female threaded member, and a control device. The operation member is operable by an operator to rotate in a fastening direction and a loosening direction. The control device is coupled between the operation member and... | 05/22/2007 |
| 7220168 | Processes for producing a whetstone and whetstone pellets with uniform abrasion layers A whetstone pellet 1 is composed of a columnar base body 2 to be fixed on a pedestal 9, and an abrasive grain part 5 containing numerous abrasive grains formed by electroless plating on an end surface 3 of the base body 2. U... | 05/22/2007 |
| 7204244 | Diamond core drill bit A diamond core drill bit (100) is disclosed. The drill bit has a right-circular cylindrical body (120) with at least one side lubrication hole (122) toward the bottom of the body and a plurality of parallel grooves (124) oriented in an ax... | 04/17/2007 |
| 7198558 | Knife blade dressing apparatus A dressing device (10,90) for sharpening or conditioning of a blade (18) or the like includes one or more disk pairs (36–40,108), each having a pair of disks (52,54,110,112) respectively presenting a series of circumferentially spaced, ... | 04/03/2007 |
| 7198553 | Corrosion resistant abrasive article and method of making An abrasive article includes a plurality of abrasive particles securely affixed to a substrate with a corrosion resistant matrix material. The matrix material includes a sintered corrosion resistant powder and a brazing alloy. The brazing alloy includes an element w... | 04/03/2007 |
| 7195550 | Method and installation for making abrasive grinders and grinder obtained by said method An abrasive product is formed, in a blank making machine, into a layer forming a blank including at least abrasive grains. The layer is then set atop on at least another blank making machine, an assembly line along which successive posts are provided at the site whe... | 03/27/2007 |
| 7186166 | Fiber embedded polishing pad A polishing pad having a body comprising fibers embedded in a matrix polymer formed by a reaction of polymer precursors. The loose fibers define and the precursors were mixed first with curatives, then mold into a pad form. The pad may include a thin layer of free f... | 03/06/2007 |
| 7175509 | Grinder and method of and apparatus for non-contact conditioning of tool Truing of a grinder is performed by irradiating a laser beam onto abrasive grains on the outermost periphery of the grinder from the tangential direction of the grinder. Truing of the grinder for adjusting the number of working abrasive grains and the shape of the a... | 02/13/2007 |
