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| Number | Title | Issue Date |
| 8016645 | Chamfering apparatus for chamfering glass substrates A chamfering apparatus is used to chamfer a peripheral edge of a glass substrate. The chamfering apparatus includes a grindstone having a cylindrical hollow end portion; a grindstone driving unit that rotates the grindstone around an axis of the cylindrical hollow e... | 09/13/2011 |
| 7798889 | Chamfering apparatus for chamfering glass substrates A chamfering apparatus is used to chamfer a peripheral edge of a glass substrate. The chamfering apparatus includes a grindstone having a cylindrical hollow end portion; a grindstone driving unit that rotates the grindstone around an axis of the cylindrical hollow e... | 09/21/2010 |
| 7402097 | Track supported bore finishing device A bore honing device comprising a support assembly including first and second end support elements connected by a base support which supports an axial guide track. A trolley engaging with the guide track and the trolley being movable along the guide track for guide ... | 07/22/2008 |
| 7347765 | Honing installation with several work stations A honing installation for honing workpieces comprises a plurality of work stations, each work station being configured for performing at least one working step on a workpiece and at least part of the work station is set up as a honing station for performing at least... | 03/25/2008 |
| 7294222 | External pipe cleaner Disclosed is a pipe cleaner apparatus that is attached to a pipe fusion machine. The pipe cleaner removes dirt, snow, mud, and other debris from the outer surface of pipe sections prior to the butt fusion process. The pipe cleaner may be a wiper through which the pi... | 11/13/2007 |
| 7241209 | Orbiting polishing tool An orbiting polishing tool for at least one of polishing and material removal. The orbiting polishing tool may include a housing of a housing assembly rotatable about a first axis. The orbiting polishing tool may also include at least one abrasive wheel rotatable ab... | 07/10/2007 |
| 7220171 | Cutting cup for sphere making machines A cutting cup for a sphere making machine. The cutting cup includes a cylindrical ring having an outer wall, an inner wall, a bottom wall, and a top wall, the top wall having at least one beveled facet angled downwardly from the outer wall to the inner wall. A cutti... | 05/22/2007 |
| 7217126 | Dental instrument sharpening stone system A hand-held dental mirror carrying a sharpening stone for a dental instrument such as a curette, comprising a shaft supporting a mirror, a hand grip coupled to the shaft, and a sharpening stone coupled to the shaft. ... | 05/15/2007 |
| 7172495 | Method and apparatus using a sensor for finish-machining teeth Teeth of a workpiece of a workpiece are finish-machined by first gauging shapes of the workpiece teeth and generating actual-value signals corresponding thereto. These actual-value signals are compared to set points representing desired tooth shapes, and the teeth o... | 02/06/2007 |
| 7118449 | Method of manufacturing an optical element A method of manufacturing an optical element having an optical surface extending close to a periphery of a substrate comprises: providing a substrate having a main surface extending beyond a periphery of the optical surface and also performing a polishing of the opt... | 10/10/2006 |
| 7104870 | Modified radial motion (MRM) method for modifying lengthwise curvature of face-milling spiral bevel and hypoid gears The present invention relates to a modified radial motion method for modifying lengthwise curvature of face-milling spiral bevel and hypoid gears, which is capable of modifying a locus of a cutter center into a curve, without changing a head cutter's geometry, by pr... | 09/12/2006 |
| 7097544 | Chemical mechanical polishing system having multiple polishing stations and providing relative linear polishing motion An apparatus and associated methods for polishing semiconductor wafers and other workpieces that includes polishing surfaces located at multiple polishing stations. Multiple wafer heads, preferably at least one greater in number than the number of polishing stations... | 08/29/2006 |
| 7008298 | Machine for machining long workpieces provided with cutting teeth, particularly for grinding endless saw blades In a machine (10) for machining long workpieces (32) provided with cutting teeth (60), particularly for grinding endless saw blades, having a machine base (40) and a machining device (12) which has a rotatably drivable tool (16 | 03/07/2006 |
| 6991521 | Edge finishing process for glass or ceramic disks used in disk drive data storage devices The circumferential edges of glass or ceramic disks used in disk drive data storage devices are preferably finished by ductile grinding to produce an essentially fracture-free surface, which is not chemically strengthened. Preferably, the material is glass, and both... | 01/31/2006 |
| 6860795 | Edge finishing process for glass or ceramic disks used in disk drive data storage devices The circumferential edges of glass or ceramic disks used in disk drive data storage devices are preferably finished by ductile grinding to produce an essentially fracture-free surface, which is not chemically strengthened. Preferably, the material is glass, and both... | 03/01/2005 |
| 6796882 | Appliqué film and paint treatment removal tool An appliqué film and paint removal tool includes a central rotating shaft, a spring-loaded locator pin, at least three freely rotating bearings, an arbor, and a collar. The rotating shaft may be centered with the locator pin and pushed down until the bearings touch... | 09/28/2004 |
| 6783444 | Tool for machining surfaces in bores The tool comprises a tool wheel (5) which is mounted on a holding arm (4) and has a tool-wheel parent body (6) having a machining body (7) arranged at the outer margin. In one embodiment variant, this machining body is designed as an abra... | 08/31/2004 |
| 6739954 | Grinding pin for grinding machines comprising resin bonded selections of rough grit and fine grit A grinding pin (53) for grinding notches in the edges of disc workpieces, such as semi-conductor wafers, comprises a metal spindle (132) for mounting in a grinding machine, and an adjoining cylindrical region having axially spaced sections of fine grit... | 05/25/2004 |
| 6716088 | Work processing method A processing apparatus capable of grinding an arcuate groove (a groove having an arcuate shape in section) of various shapes defined in a work with a good accuracy. A pseudo-elliptic arcuate groove defined in a work is ground by a forming grindstone. The work is mov... | 04/06/2004 |
| 6679766 | Diamond sleeve honing tool A honing tool assembly adapted to be chucked in a honing machine for reciprocation and rotation, the assembly comprising a diamond-plated tool for honing cylindrical bores in a workpiece, the diamond-plated tool having a spiral pattern on a cylindrical ou... | 01/20/2004 |
| 6561869 | Gear grinding machine and gear grinding method A gear grinding machine and a gear grinding method, in which a gear-shaped grinding stone is caused to engage a gear-like workpiece and one of the gear-shaped grinding stone and the gear-like workpiece is reciprocated relatively to the other in axial dire... | 05/13/2003 |
| 6551178 | Reamer with adjustable expansion/contraction, and bore finishing machine comprising the same A reamer with adjustable expansion/contraction and a bore finishing machine comprising the reamer. The reamer has a rotation shaft that is externally operable and a grinding section. The grinding section is cylindrically shaped, and has a plurality of axi... | 04/22/2003 |
| 6475073 | Inner diameter grinding wheel and grinding apparatus using the wheel for grinding a cylindrical workpiece A grinding apparatus uses an inner diameter grinding wheel (4) to grind a doughnut-shaped workpiece (12), and comprising: an axle support cylinder (5) for support a sleeve-shaped grinding wheel axle (6), mounted on which is the grinding wheel (4) having a... | 11/05/2002 |
| 6461229 | Abrasive machine for machining a surface of a cylindrical work piece Machine for machining an envelope surface of a cylindrical work piece includes a tubular cylindrical housing with a longitudinal axis and having an inner space extending from a first end of the housing, and with an axis offset from the housing axis, a sha... | 10/08/2002 |
| 6435954 | Abrasive machine for machining a flange on a work piece A machine for machining a flange on a work piece comprises a rotated tool, chucking equipment and feeding means for relative displacement between work piece and tool, a tubular cylindrical housing with longitudinal axis and an inner space, with an axis of... | 08/20/2002 |
| 6425808 | Honing tool A honing tool has a large-diameter portion thereof provided with a plurality of stone holding recesses arranged radially from the inner bore to the outer edge for slidably holding grinding stones. Each stone holding recess is arranged to form an upper gui... | 07/30/2002 |
| 6322423 | Internal abrasive machine An internal abrasive machine abrades material from an inner surface of a workpiece. The machine includes a casing rotated about a first axis, with a workpiece rotated therewith about the first axis. A housing is disposed coaxially inside of the casing, an... | 11/27/2001 |
| 6306017 | Method and machining tool for producing helically profiled workpieces For producing hectically profiled workpieces (1) the helical profile (2) is first of all prefabricated by a milling treatment and is then finished by a grinding treatment of the profile surface. To achieve optimum machining qualities in an economic way, t... | 10/23/2001 |
| 6241590 | External abrasive machine An abrasive machine for grinding material from an outer surface of a workpiece. The machine includes a rotationally driven casing having an opening at one axial end thereof. The opening is defined by an annular edge which constitutes a grinding wheel. A s... | 06/05/2001 |
| 6234879 | Method and apparatus for wafer chamfer polishing A method and apparatus for polishing chamfers made along the periphery of a semiconductor wafer designed such that when the wafer is once picked up by a rotatory suction cup of a transportation robot arm, the wafer is not released from the suction cup unt... | 05/22/2001 |
| 6203410 | Reamer with adjustable expansion/contraction, and bore finishing machine comprising the same A reamer with adjustable expansion/contraction and a bore finishing machine comprising the reamer. The reamer has a rotation shaft that is externally operable and a grinding section. The grinding section is cylindrically shaped, and has a plurality of axi... | 03/20/2001 |
| 6152812 | Punching machine for cutting glass A punching machine for cutting glass having a punch body comprises a hollow punch holder on a top side of the punch body; a hollow punch on a bottom side of the punch body having a cavity on a front end and a circumferential portion with a plurality of sa... | 11/28/2000 |
| 5961382 | Pipe beveler A new PIPE BEVELER for ATTACHING TO A ROTARY SAW FOR PRODUCING THIRTY DEGREE BEVELS ON PIPES. The inventive device includes a coupling plate adapted for coupling with respect to a rotary saw. A receiving collar having a generally frustoconical configurati... | 10/05/1999 |
| 5899795 | Multi-function pipeline weld removal apparatus A pipeline and tubular structure renovation apparatus facilitates rapid and economical removal of protrusions into the interior of pipelines and other tubular structures, particularly gas pipelines having excess weld or devices such as nipples, etc. The a... | 05/04/1999 |
| 5803794 | Combined grinding machine for providing an internal spline The combined grinding machine for internal spline includes three grinding heads for processing a bore of internal spline parts. The machine clamps a workpiece and at the same time can finish grind during the bore and spline operation and boring one of its... | 09/08/1998 |
| 5800252 | Fluid-activated variable honing tools and method of using the same An improved honing method and device connected to a source of pressurized fluid for machining a wall of a bore hole or similar interior of a workpiece. The honing device includes a tool mandrel connected in a cantilevered arrangement to a machine for rota... | 09/01/1998 |
| 5709591 | Unitary molded honing tool An injection molded disposable honing tool is made by an injection molding process. The tool has an elongated rectangular base from which projects an elongated section which may be somewhat smaller. The elongated section terminates in a working face. The ... | 01/20/1998 |
| 5630749 | Apparatus for the mechanical removal of deposits on welding electrodes The invention relates to an apparatus for the mechanical removal of deposits on welding electrodes. Welding electrodes have to be cleaned after a certain number of welding operations due to deposits. Therefore an apparatus is provided which is essentially... | 05/20/1997 |
| 5591065 | Method of dressing honing wheels The present invention relates to a method for dressing a hone of a honing wheel which is used for honing a gear to be finished. A dressing tool is brought into contact with the honing wheel under a predetermined constant contact pressure and during the re... | 01/07/1997 |
| 5571040 | Method and device for detecting blade flexure and blade flexure control device for use with a slicing machine A method and device are adapted for detecting and controlling the flexure of a flat ring blade member of a slicing machine in which a workpiece is placed in the blade member, and a relative movement is rendered between the blade member being rotated and a... | 11/05/1996 |