Rotary Tool Patents (Class 451/177)
  • Patent number: 9704813
    Abstract: A device region (17) is formed at a central part of a semiconductor wafer (2) and a ring-shaped reinforced portion (18) which is thicker than the device region (17) is formed on an outer circumference of the device region (17). After forming the device region (17) and the ring-shaped reinforced portion (18), the semiconductor wafer (2) is subjected to wet treatment. After the wet treatment, the semiconductor wafer (2) is rotated and dried. A center position of the semiconductor wafer (2) is different from a center position of the ring-shaped reinforced portion (18).
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: July 11, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventor: Kazunari Nakata
  • Patent number: 9656338
    Abstract: A gear grinding unit, capable of grinding a tooth flank of a gear to have fine surface roughness without requiring any special shaping work such as dressing, includes a threaded grinding part which is rotatable around a rotation axis (S1) and engages with a tooth of a gear to be ground. Through a rotational motion of the threaded grinding part, a tooth flank of the gear is ground. The threaded grinding part includes a plurality of flexible abrasive sheets each including a virtual circle having a diameter that equals a root diameter (DA) of the threaded grinding part and a bulge part bulging radially outward from the virtual circle. With the bulge parts of the abrasive sheets mutually shifted around the rotation axis (S1), the abrasive sheets are overlapped along the rotation axis (S1) to form the threaded grinding part.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: May 23, 2017
    Assignee: NITOLEX CORPORATION
    Inventors: Takahiko Nuriya, Shoichi Morioka
  • Patent number: 9656372
    Abstract: A knife sharpener includes guide structure for accommodating thick blades of a knife. The guide structure includes a fixed guide surface having a convex portion to match a concave shape of the blade and a spring guide surface preferably has a convex portion to press against a hollow ground portion of the blade.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: May 23, 2017
    Assignee: EDGECRAFT CORPORATION
    Inventors: Samuel Weiner, Bela Elek, Daniel D. Friel, Jr.
  • Patent number: 9610667
    Abstract: A lens edging system of the present invention includes: an edger configured to perform edging of a spectacle lens using an edging tool; a shape measurement device configured to measure an edging shape of a circumferential edge of the spectacle lens after edging by the edger; a memory part configured to store information regarding a reference shape of the edging tool used by the edger; a shape comparing and judging part configured to compare a measurement result obtained by the shape measurement device and a reference shape of the edging tool specified from the information stored in the memory part, and judge necessity/non-necessity for exchanging the edging tool based on a comparison result; and an information output part configured to output information regarding necessity for exchange when the shape comparing and judging part so judges.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: April 4, 2017
    Assignee: HOYA CORPORATION
    Inventors: Masahiko Samukawa, Hidetoshi Nishimura
  • Patent number: 9333613
    Abstract: A wide range of knives and blades, including Western, Asian or traditional Japanese style blades that have a primary edge facet on at least one side of the knife edge are sharpened through use of an electric knife sharpener having a first sharpening stage with at least one rotating abrasive surface disk and a knife angle guide to position the blade's facet at a first relative angle of approximately 15 degrees as it contacts the moving abrasive surface. The knife sharpener includes a second sharpening stage with at least one rotating abrasive surfaced disk and a knife angle guide to position the blade's facet at a second relative angle of approximately 20 degrees as it contacts the rotating abrasive surface.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: May 10, 2016
    Inventors: Daniel D. Friel, Sr., Bela Elek
  • Patent number: 9168627
    Abstract: A knife sharpener sharpens a wide range of knives and blades. The knife sharpener includes an angle guide associated with a first stage abrasive surface at an angle in the range of 12-18 degrees. A second stage is provided at an angle in the range of 17-23 degrees. A third stage is provided at an angle in the range of 19-25 degrees. The abrasive surface in the first and second stages is in the range of 240 to 400 grit while the abrasives in the third stage is in the range of 600 to 2000 grit.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: October 27, 2015
    Assignee: Edgecraft Corporation
    Inventors: Bela Elek, Daniel D. Friel, Sr.
  • Patent number: 8986075
    Abstract: Disclosed is a blade grinder comprising a blade holder that is mounted so as to be rotatable about a horizontal shaft which is mounted so as to be rotatable about a vertical axis, thus allowing the blade to be optimally adjusted relative to a grinding disk. The grinding disk can preferably be vertically and horizontally moved using spindles. This creates a simple design allowing a lawnmower blade to be ground in a fully automatic manner.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: March 24, 2015
    Assignee: Johannes Franzen GmbH & Co. KG
    Inventor: Johannes Franzen
  • Publication number: 20150065011
    Abstract: A method of using a diamond cutting tool for ornamentation purpose is provided. The method includes positioning a work piece in proximity to a cutting tool. The cutting tool includes a shank. Further, the cutting tool may extend longitudinally from the shank and coaxial therewith. The cutting end includes a cutting end comprised of, but not limited to, a compact mass of sharp diamond dust. Further, the method includes activating the cutting tool to perform one of cutting and polishing of at least a portion of the work piece. Herein, activating the cutting tool enables movement of the cutting tool for positioning thereof. Further, activating the cutting tool may enable spinning of the cutting end to perform one of cutting and polishing of a portion of the work piece based on the positioning of the cutting tool.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 5, 2015
    Inventor: Jonathan Mandelbaum
  • Patent number: 8956202
    Abstract: A system for machining a bevel on a disk shaped part including a grinding device having an abrasive, a device for securing the part including a support to which the part is fitted and which is integral with an axis of rotation. The securing device further includes a system for orienting the axis of rotation to define the angle of the bevel and a system for moving the support closer to the abrasive in order to machining the part under stress. The invention concerns the field of crystals for timepieces.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: February 17, 2015
    Assignee: Comadur S.A.
    Inventors: Jean-Paul Tassetti, Christophe Vuillemin, Fabien Bez
  • Publication number: 20150017878
    Abstract: A method of removing at least a portion of an interaction layer on an electrode region of a solar substrate is provided. The method includes a step of providing a solar substrate including an absorbing region and an electrode region. The absorbing region including an absorbing layer configured to convert light energy into electrical energy. The electrode region is substantially free of the absorbing layer, and the electrode region includes an interaction layer. The method also includes a step of brushing the electrode region to remove at least a portion of the interaction layer.
    Type: Application
    Filed: September 26, 2014
    Publication date: January 15, 2015
    Applicant: Orthodyne Electronics Corporation
    Inventors: Christoph B. Luechinger, Erich C. Mueller, Orlando L. Valentin, Tao Xu
  • Patent number: 8858734
    Abstract: A method of superfinishing a large hollow wheel gear in a vibratory bowl having a center hub comprises at least partially filling the vibratory bowl with an amount of finishing media, laying the gear horizontally into the bowl over the center hub, supplying a quantity of an active chemistry into the bowl and agitating the vibratory bowl at a frequency such that the gear settles into and is fully supported by the media. By controlling the process parameters, the hollow wheel gear may be caused to rotate in the media and can be made to float at a desired level. The method is particularly suitable for hollow wheel gears for large wind turbines.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: October 14, 2014
    Assignee: REM Technologies, Inc.
    Inventors: Mark Michaud, Edward David Summers
  • Publication number: 20140248824
    Abstract: There is provided a processing apparatus and an optical member manufacturing method that can improve the figure accuracy and the waviness accuracy, and can highly and precisely process an optical element surface. A processing apparatus generates a pressure between a polishing member and a workpiece and relatively moves the polishing member and the workpiece to process a workpiece. The processing apparatus includes a support member that can perform oscillating movement, and a processing portion that is rotatably attached to the support member. The processing portion includes one or more pressure generation units to generate different pressures between the polishing member and the workpiece.
    Type: Application
    Filed: August 29, 2012
    Publication date: September 4, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kensuke Satake, Manabu Ando, Yoshifumi Nonaka
  • Publication number: 20140209363
    Abstract: There are provided multilayer ceramic capacitor, a manufacturing method therefor, a circuit board having a multilayer ceramic capacitor embedded therein, and a polishing device for a multilayer ceramic capacitor.
    Type: Application
    Filed: June 26, 2013
    Publication date: July 31, 2014
    Inventors: Deok Seok OH, Jung Hyun JEON
  • Publication number: 20140199925
    Abstract: A tool spindle for a honing machine includes a bowl-shaped holder having a circumferential peripheral wall connected to a bottom part. The bowl-shaped holder is configured to hold a honing ring on an inside of the bowl-shaped holder. At least one expansion element is formed on the inside of the bowl-shaped holder along an inner surface of the circumferential peripheral wall. The at least one expansion element radially clamps and centers the honing ring inside the bowl-shaped holder. A hydraulic chamber is disposed in the bottom part of the bowl-shaped holder. At least one hydraulic line is connecting in fluid communication the at least one expansion element and the hydraulic chamber. A single adjustment element is movable in relation to the bottom part of the bowl-shaped holder, where the single adjustment element is in fluid communication with the hydraulic chamber.
    Type: Application
    Filed: March 15, 2014
    Publication date: July 17, 2014
    Applicant: FELSOMAT GmbH & Co. KG
    Inventor: Helmut F. Jaeger
  • Publication number: 20140179201
    Abstract: The present document describes a blade sharpening system comprising a blade sharpening device, a blade holding apparatus and a controller operatively coupled to the blade sharpening device and said blade holding apparatus to control sharpening of said blade, and methods of using the same.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Applicant: AIGUISAGE ELITE INC.
    Inventor: Denis PROULX
  • Publication number: 20140170940
    Abstract: A polishing device includes a driving member and a polishing head. The polishing head is connected to the driving member and includes a rotating body made of metallic material, a buffering pad, and an abrasive paper. The buffering pad is made of plastic material and is fixedly assembled to the rotating body. The abrasive paper is fixed to a surface of the buffering pad opposite to the rotating body.
    Type: Application
    Filed: November 7, 2013
    Publication date: June 19, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., FU DING ELECTRONICAL TECHNOLOGY (JIASHAN) CO.,LTD.
    Inventors: MING-LU YANG, TAO ZHOU
  • Publication number: 20140127978
    Abstract: An inner rotary retaining member has an annular outward rolling surface formed of part of a radially outward tapered surface centering on the central axis of a first rotary drive shaft. An outer rotary retaining member has an annular inward rolling surface formed of part of a radially inward tapered surface centering on the central axis of a second rotary drive shaft. The rolling surfaces are opposed to each other. A pocket that supports a workpiece such that the workpiece rotates and revolves as the retaining members rotate is formed at a portion of the carrier, the portion being positioned between the rolling surfaces. The central axis of the workpiece supported by the pocket is inclined relative to the central axis of the rotary drive shafts.
    Type: Application
    Filed: October 30, 2013
    Publication date: May 8, 2014
    Applicant: JTEKT CORPORATION
    Inventor: Kiyoshi YONEMICHI
  • Publication number: 20140127980
    Abstract: A grinding device includes a grinding wheel spun by a first driver, a holder, and a second driver providing linear movement to the holder. The grinding wheel defines a groove which has a hemispherical bottom surface. The holder holds a light-transmitting rod with an end inserted into the groove and set substantially parallel to a rotating axis of the grinding wheel.
    Type: Application
    Filed: June 17, 2013
    Publication date: May 8, 2014
    Inventor: PO-CHOU CHEN
  • Publication number: 20140127974
    Abstract: Polishing and cleaning techniques are combinatorially processed and evaluated. A polishing system can include a reactor assembly having multiple reaction chambers, with at least a reaction chamber including a rotatable polishing head, slurry and chemical distribution, chemical and water rinse, and slurry and fluid removal. Different downward forces can be applied to the polishing heads for evaluating optimum process conditions. Channels in the polishing pads can redistribute slurry and chemical to the polishing area.
    Type: Application
    Filed: November 7, 2012
    Publication date: May 8, 2014
    Applicant: INTERMOLECULAR, INC.
    Inventors: Kim Van Berkel, Aaron T. Francis, Frank C. Ma, George Mirth
  • Patent number: 8694150
    Abstract: A machining installation for workpieces comprises a workpiece positioning device comprising a workpiece holder pivot unit as well as a tool positioning device comprising a tool holder pivot unit. The workpiece holder pivot unit is designed such that a workpiece holder is pivotable about at least three and no more than four workpiece holder pivot axes. Moreover, the tool holder pivot unit is designed such that a tool holder is pivotable about no more than two tool holder pivot axes. The machining installation has a simple design and ensures flexible and accurate machining of workpieces.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: April 8, 2014
    Assignee: MAG IAS GmbH
    Inventors: Moshe Israel Meidar, Wolfgang Horn, Siegfried Schmalzried, Waldemar Haus
  • Publication number: 20140073223
    Abstract: A workpiece processing apparatus is provided. The apparatus includes a rotary turntable having one or more spindles thereon, the turntable being configured to rotate about a turntable axis. Each of the spindles is configured to receive and secure thereon a workpiece to be processed by the apparatus. Each of the spindles can rotate about their own independent axes. The apparatus includes one or more grind spindles that overlay the turntable and are configured to communicate with the workpieces. The apparatus processes the workpieces by transitioning between first and second operational states. The first operational state centers the spindles and the workpieces thereon under the grind spindle to condition an entire top surface of the workpieces. The second operational state offsets the spindles from the center of the grind spindle to condition a perimeter edge of the workpieces. A controller can govern the transition between first and second operational states.
    Type: Application
    Filed: September 9, 2013
    Publication date: March 13, 2014
    Applicant: AXUS TECHNOLOGY, LLC
    Inventors: Daniel R. Trojan, Richard Ciszek, Clifford Daniel
  • Publication number: 20140073227
    Abstract: A device and a method for machining, especially for polishing of an optical lens, are proposed, there being both a lens changing apparatus and also a separate tool changing apparatus. The lens changing apparatus is located between a working space and a conveyor apparatus for lenses and is pivotally mounted around a horizontal axis. The tool changing apparatus is located laterally next to the working space.
    Type: Application
    Filed: March 19, 2012
    Publication date: March 13, 2014
    Inventors: Gunter Schneider, Helwig Buchenauer, Ulf Börner, Klaus Krämer
  • Publication number: 20140030964
    Abstract: The grinding surface of a grinding stone is formed from a circular conical surface, a drive device for rotation is installed within a housing. The blade of a cutting tool is ground while the longitudinal direction of the cutting tool is aligned with the direction of a generating line of the grinding surface. When grinding the blade, the cutting tool can be aligned with the direction of the generating line of the grinding surface and the blade can be brought in contact with the grinding surface without the handle of the cutting tool and the hand that holds the cutting tool being interfered with the grinder. This is achieved irrespective of in which one of the directions of lines the tip of the blade faces, the lines being obtained by extending the generating line of the grinding surface from both ends of the generating line.
    Type: Application
    Filed: April 24, 2012
    Publication date: January 30, 2014
    Applicant: KAI R&D CENTER CO., LTD.
    Inventor: Makoto Fujimura
  • Publication number: 20140011429
    Abstract: A polishing apparatus includes a platen to hold a polishing pad having a plurality of optical apertures, a carrier head to hold a substrate against the polishing pad, a motor to generate relative motion between the carrier head and the platen, and an optical monitoring system. The optical monitoring system includes at least one light source, a common detector, and an optical assembly configured to direct light from the at least one light source to each of a plurality of separated positions in the platen, to direct light from each position of the plurality of separated positions to the substrate as the substrate passes over said each position, to receive reflected light from the substrate as the substrate passes over said each position, and to direct the reflected light from each of the plurality of separated positions to the common detector.
    Type: Application
    Filed: September 13, 2013
    Publication date: January 9, 2014
    Applicant: Applied Materials, Inc.
    Inventors: Jeffrey Drue David, Boguslaw A. Swedek, Dominic J. Benvegnu, Sivakumar Dhandapani
  • Patent number: 8615885
    Abstract: A method for producing, ball rollers. The following method steps are performed to produce the ball rollers: (A) cutting unfinished sections at a defined length from a round wire that has a defined diameter, (B) compression molding ball roller blanks that have end face depressions in the form of a die tool, and (C) grinding the ball roller blanks to the desired final dimensions in a ball grinding machine. The cut-off unfinished sections have a volume by which during compression molding an approximately tangential raceway transition from one ball roller half to the other ball roller half and material fibers extending under the running surfaces of the ball rollers parallel or approximately parallel to the running surfaces arise. In addition, the ball roller blanks are ground to the final dimensions in a horizontal ball grinding machine loaded exclusively with ball roller blanks of the same size.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: December 31, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Kurt Besenbeck, Horst Doeppling, Heinrich Hofmann
  • Publication number: 20130343165
    Abstract: An external piece for a time piece and a method of manufacturing the same, including a top surface and a bottom surface. At least one of the faces includes a longitudinal curvature and a transverse curvature that are different.
    Type: Application
    Filed: February 17, 2012
    Publication date: December 26, 2013
    Applicant: COMADUR S.A.
    Inventors: Jean-Paul Tassetti, Gilles Derriey, Patrice Dumont
  • Patent number: 8613643
    Abstract: A workpiece feeder is capable of feeding a roller to a roller end face processing machine in a stable posture, a roller end face processing machine, and a roller for a rolling bearing processed by such a roller end face processing machine are provided. The workpiece feeder for roller end face processing includes: a carrier ring having a plurality of recesses arranged in a radially-inner surface thereof at a predetermined pitch along a circumferential direction; a regulating wheel fitted into the carrier ring to form roller fitting cavities between a radially-outer surface of the regulating wheel and the plurality of recesses; a carrier support for supporting the carrier ring on a radially-outer side with respect to the plurality of recesses; and rotational force applying means for applying a rotational force to the carrier ring on the radially-outer side with respect to the plurality of recesses.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: December 24, 2013
    Assignee: NTN Corporation
    Inventor: Satoshi Sugitatsu
  • Publication number: 20130303059
    Abstract: A lens pad for use in surfacing a lens work piece, one side of which pad provides a working surface and the other side of which pad provides micro formations spread out substantially uniformly over that other side of the pad. When the lens pad is in use, it is attached to a surface of a lens surfacing tool. The latter surface provides micro formations spread substantially uniformly over that surface of the lens surfacing tool. The micro formations of the pad interengage or interlock with those of such a surface of such a lens surfacing tool when the pad is in use. Also, such a lens surfacing tool, a combination of such a pad attached to such a tool, and a lens surfacing machine having such a tool, or such a combination.
    Type: Application
    Filed: May 10, 2013
    Publication date: November 14, 2013
    Applicant: Cerium Group Limited
    Inventors: Clive Laurence SANGSTER, Timothy NOAKES
  • Publication number: 20130294919
    Abstract: A method of manufacturing turned surfaces of a rotor disc of a gas turbine engine, including rotating the rotor disc about its central axis, rotating an abrasive grinding wheel having an outer grinding surface with a hardness greater than that of a material of the rotor disc, contacting the rotating wheel with at least one annular surface of the rotating disc, and sliding the rotating wheel along a curved cross-sectional profile of the at least one annular surface of the rotating disc.
    Type: Application
    Filed: May 3, 2012
    Publication date: November 7, 2013
    Inventors: Amr ELFIZY, Lafleche GAGNON, Sylvain JETTE
  • Publication number: 20130260647
    Abstract: A tool, method and apparatus to refurbish a valve seat having a compound geometry, such as a valve seat in a valve body for a common rail injector is disclosed. The tool includes a body with a head portion having substantially the same geometry as the valve seat to be refurbished, the tool further including a radiused portion between two angles of the valve seat to provide a chamfered surface on the valve seat to be refurbished. The method includes lapping the valve seat with the tool in and X, Y and Z axis to refurbish the valve seat in a single operation without substantially altering the geometry of the valve, and the apparatus includes slide moveable in an X and Y axis, and a fixture mounted on a preloaded biased base so movement in the Z axis is controllable.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 3, 2013
    Inventor: Roman F. Kosiorek
  • Publication number: 20130244542
    Abstract: Abrasive articles including a body having a first abrasive layer, a second abrasive layer and one or more reinforcing layers for use with cordless tools have a reduced thickness with respect to conventional counterparts. Techniques for producing and using such abrasive articles are described. In one embodiment, the first abrasive layer and the second abrasive layer comprise abrasive particles in a bond material. In an embodiment, a reinforcing layer is disposed between the first abrasive layer and the second abrasive layer. In a particular embodiment, the body comprises an average thickness of not greater than about 5 mm. In another particular embodiment, the abrasive particles can comprise silicon carbide.
    Type: Application
    Filed: March 1, 2013
    Publication date: September 19, 2013
    Inventors: Taeke Meerveld, Alessandro R. Milani, Marko W. Versteegen, Grzegorz Wojciechowski, Karolina Rozanska-Zaworska
  • Publication number: 20130232792
    Abstract: An apparatus adapted for servicing a turbomachine component includes a tool delivery mechanism adapted for delivering a tool to a desired location in a turbomachine. A tool support is adapted to be secured onto the body of the turbomachine, and is also configured to support the tool delivery mechanism. A machining tool is attached to the tool delivery mechanism, and includes an axial slide clamp configured to clamp to the turbomachine component, a radial slide slidably connected to the axial slide clamp, a spring connected to the axial slide clamp and the radial slide, the spring providing axial tension, and a machining bit retained at least partially within the radial slide. The apparatus is adapted to service the component of the turbomachine in-situ.
    Type: Application
    Filed: March 12, 2012
    Publication date: September 12, 2013
    Inventors: Diego Quinones, John Matthew Sassatelli, Francis Alexander Reed
  • Patent number: 8527085
    Abstract: The present invention relates to a method for operating a gear grinding machine, with the following operating phases of the gear grinding machine: machining a workpiece on the gear grinding machine by means of a grinding disk and/or grinding worm and dressing a profiling tool for profiling a grinding disk and/or grinding worm on the gear grinding machine.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: September 3, 2013
    Assignee: Liebherr Verzahntechnik GmbH
    Inventors: Thomas Breith, Manfred Zankl
  • Publication number: 20130171912
    Abstract: The present invention relates to a method for producing periodic tooth flank modifications, wherein a tool is used during a first stroke carried out relative to a tooth flank of a tooth of a workpiece along an axis, which is rotated by a helix angle ? relative to a center axis of the workpiece and which produces an enshrouding plane. The invention further relates to a machine tool, which is designed to carry out said method, and to a computer-readable medium having instructions, which lead to the open- or closed-loop control of a machine tool according to the method above when executed by a processor.
    Type: Application
    Filed: July 6, 2011
    Publication date: July 4, 2013
    Inventor: Stoyan Radev
  • Publication number: 20130165025
    Abstract: A plate locking mechanism for a surface preparation device comprising a connecting plate having a receiving aperture, a base plate and a floating plate capable of being substantially aligned with the base plate. A fastener extends through a floating plate aperture and engages with a base plate aperture and a resilient member is operatively associated with the fastener to maintain the floating plate in contact with the base plate and wherein, when the base plate is located within the receiving aperture, the floating plate is rotatable to retain the connecting plate in position.
    Type: Application
    Filed: July 29, 2010
    Publication date: June 27, 2013
    Inventor: Myles Graham Kelly
  • Publication number: 20130157547
    Abstract: Disclosed is a blade grinder comprising a blade holder that is mounted so as to be rotatable about a horizontal shaft which is mounted so as to be rotatable about a vertical axis, thus allowing the blade to be optimally adjusted relative to a grinding disk. The grinding disk can preferably be vertically and horizontally moved using spindles. This creates a simple design allowing a lawnmower blade to be ground in a fully automatic manner.
    Type: Application
    Filed: August 3, 2011
    Publication date: June 20, 2013
    Applicant: JOHANNES FRANZEN GMBH & CO. KG
    Inventor: Johannes Franzen
  • Patent number: 8439725
    Abstract: With a method for the production of a precise prefabricated concrete part, especially in the form of a sleeper or a plate for a fixed track for rail-guided vehicles, the prefabricated concrete part is ground at the functionally relevant points to the predetermined size by means of a grooved roller. The device for this is a grinding machine with a grooved roller to grind the prefabricated concrete part at functionally relevant points to a predetermined size. The grooved roller is made of a wear resistant material, especially silicon carbide.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: May 14, 2013
    Assignee: Max Bogl Bauunternehmung GmbH & Co. KG
    Inventor: Stefan Bögl
  • Publication number: 20130084782
    Abstract: A floor grinding and polishing machine including a base that includes a shroud, and first and second spindle carriers rotatably coupled thereto which have first and second axes of rotation spaced from each other in an alignment direction. The base also includes first and second pluralities of rotatable spindles, each plurality carried by a spindle carrier and distributed about the respective spindle carrier axis of rotation. Motors are connected to the shroud and drivingly engaged with the pluralities of spindles, whereby each plurality of spindles is rotatably driven about its respective spindle axis of rotation. The machine also includes floor-engaging handle coupled to the base and defining a direction of operative movement along which the machine may linearly travel. The base and handle have different first and second selective, relative positions in which the alignment and operative movement direction have substantially different relative angular positions.
    Type: Application
    Filed: October 4, 2011
    Publication date: April 4, 2013
    Applicant: KRMC, LLC D.B.A. KUT-RITE MANUFACTURING
    Inventors: Travis McCutchen, Clinton McCutchen, Radu Stingu
  • Publication number: 20130078810
    Abstract: The present disclosure provides an apparatus for fabricating a semiconductor device. The apparatus includes a polishing head that is operable to perform a polishing process to a wafer. The apparatus includes a retaining ring that is rotatably coupled to the polishing head. The retaining ring is operable to secure the wafer to be polished. The apparatus includes a soft material component located within the retaining ring. The soft material component is softer than silicon. The soft material component is operable to grind a bevel region of the wafer during the polishing process. The apparatus includes a spray nozzle that is rotatably coupled to the polishing head. The spray nozzle is operable to dispense a cleaning solution to the bevel region of the wafer during the polishing process.
    Type: Application
    Filed: September 22, 2011
    Publication date: March 28, 2013
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Bo-I Lee, Huang Soon Kang, Chi-Ming Yang, Chin-Hsiang Lin
  • Publication number: 20130072095
    Abstract: The present disclosure relates to an internal gear grinding machine with a grinding arm, on which a grinding spindle is arranged, and with an adjustable coolant nozzle, wherein the coolant nozzle is adjustable via a drive.
    Type: Application
    Filed: September 12, 2012
    Publication date: March 21, 2013
    Applicant: LIEBHERR-VERZAHNTECHNIK GMBH
    Inventor: Christian Hoerner
  • Publication number: 20130072096
    Abstract: The present disclosure relates to an internal gear grinding machine having a grinding arm at which a grinding spindle is arranged and having a measuring head, wherein the measuring head advantageously includes a measuring sensor. Furthermore, in accordance with the present disclosure, the measuring head is movable from a grinding position into a measuring position via a linear guide.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 21, 2013
    Applicant: LIEBHERR-VERZAHNTECHNIK GMBH
    Inventor: Christian Hoerner
  • Publication number: 20130045666
    Abstract: A grinding machine includes a pair of workpiece support devices (12, 13), which clamp and rotate a workpiece (W), on a bed (11). A pair of saddles (14) is provided on the bed (11) in such a way as to be movable along the rotational axis of the workpiece (W). Grindstone heads (16) provided with rotating grindstones (16c) and drive mechanisms (16d) are supported on the saddles (14) in such a way as to be movable in a direction that perpendicularly intersects the movement direction of the saddles (14).
    Type: Application
    Filed: May 9, 2011
    Publication date: February 21, 2013
    Applicant: KOMATSU NTC LTD.
    Inventors: Yoshiaki Araki, Takashi Imai
  • Publication number: 20130040540
    Abstract: A multi-layer surface treating pad is disclosed. It has an upper layer suitable to serve as one part of a hook/loop type fastener system, a bottom layer which comprises an abrasive or polishing material, and a cleaning or other surface treating formulation positioned between the upper and bottom layer in the form of a bump which is positioned mostly in a central region of the pad. The bump of the formulation causes the upper layer to bulge upwardly so as to provide a visual indication as to where one optimally should attach a motorized device thereto.
    Type: Application
    Filed: September 28, 2012
    Publication date: February 14, 2013
    Inventors: Jennifer R. Harris, Ann Marie Przepasniak, Jeremy F. Knopow
  • Publication number: 20130029566
    Abstract: A polishing pad auxiliary plate including: a lower auxiliary plate overlapping a top surface of a rotating surface plate of a polishing device; a first adhering member adhering the lower auxiliary plate to the rotating surface plate; an upper auxiliary plate with a pad support surface on which the polishing pad is overlapped and adhered, while overlapping a top surface of the lower auxiliary plate; a second adhering member adhering the upper auxiliary plate to the lower auxiliary plate; and an alignment member for mutually aligning the lower and upper auxiliary plates and matching center axes thereof. By removing the upper auxiliary plate from the lower auxiliary plate, the polishing pad is removed from the rotating surface plate while being adhered to the pad support surface of the upper auxiliary plate, and the removed upper auxiliary plate is reattached and aligned to the lower auxiliary plate by the alignment member.
    Type: Application
    Filed: December 29, 2011
    Publication date: January 31, 2013
    Applicant: TOHO ENGINEERING KABUSHIKI KAISHA
    Inventors: Tatsutoshi SUZUKI, Eisuke SUZUKI
  • Publication number: 20120329372
    Abstract: The invention relates to a system (1) for machining a bevel (32, 34) on a disk shaped part (31) including a grinding device (3) having abrasive means (4), a device (5) for securing the part (31) including a support (13) to which said part is fitted and which is integral with an axis of rotation (16). According to the invention, the securing device (5) further includes a means (15) of orienting the axis (16) of rotation (B) to define the angle of said one bevel (32, 34) and a means (17) of moving the support (13) closer to the abrasive means (4) in order to machining the part (13) under stress. The invention concerns the field of crystals for timepieces.
    Type: Application
    Filed: June 21, 2012
    Publication date: December 27, 2012
    Applicant: Comadur S.A.
    Inventors: Jean-Paul Tassetti, Christophe Vuillemin, Fabien Bez
  • Publication number: 20120231706
    Abstract: This machine includes a base frame (17) and a lens support (19) mounted on the frame (17) with the lens support (19) having elements (29A, 29B) for driving a lens (15) into rotation around a first axis. It includes a tool holder set (21) including a rotary shaft (39) around a second axis (C-C?) and elements (43) for inclining the first axis (A-A?) with respect to the second axis (C-C?). The rotary shaft (39) bears at least two tools (49, 51) for machining the lens, spaced out along the second axis (C-C?), and a spacer (50) positioned in an intermediate area (55) located between both machining tools (49, 51). The spacer (50) defines an outer surface (57) for machining the lens.
    Type: Application
    Filed: March 8, 2012
    Publication date: September 13, 2012
    Applicant: LUNEAU TECHNOLOGY OPERATIONS
    Inventor: Jean-Jacques VIDECOQ
  • Publication number: 20120180317
    Abstract: A green ball grinding method includes the step of supplying a green ball between a first surface of a first member and a second surface of a second member constituting a grinding apparatus, and the step of grinding the green ball between the first surface and the second surface while the green ball rotates around its own axis and in orbital motion. In the step of grinding the green ball, the step of causing the green ball grinding to proceed while applying load between the green ball and each of the first surface and the second surface, and the step of modifying the rotation axis of the green ball by reducing the load lower than in the step of causing the green ball grinding to proceed are executed alternately.
    Type: Application
    Filed: September 22, 2010
    Publication date: July 19, 2012
    Inventors: Yasutake Hayakawa, Katsutoshi Muramatsu
  • Publication number: 20120142256
    Abstract: The invention relates to a method and an apparatus for handling slabs (2a, 2b), produced in particular by continuous casting, the surfaces of which are ground before they are rolled in a rolling train, wherein the slab, lying on a reversible grinding table (12a, 12b), is moved back and forth under a grinding unit, arranged in a machining cell, of a grinding machine unit (I, II), the grinding table is moved linearly out of the machining cell after the grinding operation has been performed on one surface, the slab is lifted off the grinding table and fed to a turning device, wherein, after turning, the slab is removed from the turning device and, with an unworked, other surface lying uppermost, is brought onto the grinding table, which is then introduced once again into the machining cell for the working of this surface.
    Type: Application
    Filed: August 6, 2010
    Publication date: June 7, 2012
    Inventor: Carsten Heide
  • Publication number: 20120129434
    Abstract: A multi-axis computer controlled machine tool for relief grinding of single and multiple start threaded hobs (46). The machine comprises an angular oriented spindle (65) that can be angularly (swivel) positioned thereby providing the flexibility to utilize both cup-shaped grinding wheels (55) and pencil-shaped grinding wheels (52) for grinding of hob and milling cutter relieved tooth geometry without exchanging grinding spindles assemblies or modifying the machine construction to accommodate two types of grinding methods or utilizing an additional machine axis for the spindle re-orientation.
    Type: Application
    Filed: September 23, 2010
    Publication date: May 24, 2012
    Applicant: GLEASON CUTTING TOOLS CORPORATION
    Inventors: Roger L. Hackman, Wayne Martin, Mark A. Ritchie
  • Publication number: 20120077421
    Abstract: During grinding of mutually parallel edges of glass plates every edge of the glass plate is ground using a grinding tool or two grinding tools disposed one behind the other and cooling agent is directed from a side of the glass plate toward the grinding tool and supplied using a supply line divided via a redirection and separating segment into a plurality of fine streams of cooling agent, and a position of the grinding tool can be adjusted such that at least the position of the grinding tools relative to the assigned edge of the glass plate, which is passing through, is calibrated and the corners of the glass plate are ground to form a chamfer.
    Type: Application
    Filed: September 20, 2011
    Publication date: March 29, 2012
    Inventors: Christoph Linnenbruegger, Joachim Korswird, Martin Schnitker