Work Reciprocating Patents (Class 451/392)
  • Publication number: 20140235146
    Abstract: An apparatus (10) for treating a product (11) is provided, in particular for tumbling a surface of the product. The apparatus includes vibration elements designed to move the product treatment composition and product retaining elements in the form of magnetic anchoring elements (12a, 12b).
    Type: Application
    Filed: October 10, 2011
    Publication date: August 21, 2014
    Inventor: Roberto Mingot
  • 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
  • Patent number: 8137162
    Abstract: Embodiments of the invention comprise a machine adapted for polishing work pieces such as large silicon wafers. A wafer polishing machine in accord with the invention comprises a rotatable platen in a table base, above which is mounted a lid having a head moving assembly with four synchronously rotatable head assemblies. A motor and linkage connected to the head moving assembly imparts reciprocating linear motion to the head assemblies in a selected direction in a plane parallel to an upper surface of the platen. Embodiments of the invention produce a complex relative motion between a surface of a wafer to be polished and the platen. The complex relative motion, resulting from a combination of motions including rotation of the platen, rotation of the head assemblies, and translation of the head moving assembly, improves a uniformity of polish and a rate of polishing compared to wafer polishing machines known in the art.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: March 20, 2012
    Inventors: Edmond Arzuman Abrahamians, Vladimir Volovich
  • Patent number: 7946325
    Abstract: A centering device (13) is arranged to surround a loading table (11) on which a lens blank (1) is to be set, to set the geometric center of the lens blank (1) to coincide with the center of the loading table (11). The centering device (13) includes three clamp pins (31) which press the peripheral surface of the lens blank (1). When centering is ended, the loading table (11) on which the lens blank (1) is set is pushed up by a moving device (12) from a centering position (H1) to a block position (H2), and a peripheral portion of the lens blank (1) on a concave surface side is urged against the lower surfaces of locking portions (31A) of clamp pins (31). After a predetermined amount of wax (4) is dripped onto the lens blank (1), a lens holding unit (2) is moved downward by a predetermined amount and urged against the wax on the lens blank (1) to spread the wax thin and let the wax to solidify. Thus, the lens blank (1) and lens holding unit (2) are bonded to each other.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: May 24, 2011
    Assignee: Hoya Corporation
    Inventors: Jun Kawakubo, Satoshi Annaka
  • Publication number: 20080188164
    Abstract: The invention relates to a method for grinding a cutting tool, especially a knife. The aim of the invention is to provide a method which allows configuration of individual leaf or blade geometries at comparatively low costs. For this purpose, the cutting tool is contacted with the effective surface of a grinding device, and the cutting tool and the grinding device can be displaced in relation to each other by at least three degrees of freedom.
    Type: Application
    Filed: September 2, 2005
    Publication date: August 7, 2008
    Applicant: ZWILLING J.A. Henckels AG
    Inventor: Joachim Droese
  • Patent number: 7160175
    Abstract: An attitude control device and a precision machining apparatus capable of accurately controlling the attitude of an object mounted on the attitude control device according to grinding stages. The attitude control device is constituted by a first flat-plate member 21 and a second flat-plate member 22 disposed in parallel with the first flat-plate while being spaced apart from the same by a distance L. A spherical member 3 is interposed between the first and second flat-plate members 21, 22 while fitting its portions in recesses 21a, 22a respectively formed in the first and second flat-plate members 21, 22. A first actuator 4a expandable in a Z-axis direction perpendicular to a plane defined by an X-axis and a Y-axis is interposed between the flat-plate members. Second actuators 4b, 4b expandable in a suitable direction in the plane defined by the X-axis and the Y-axis are connected to the second flat-plate member 22.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: January 9, 2007
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Sumio Kamiya, Hisao Iwase, Tetsuya Nagaike, Hiroshi Eda, Libo Zhou
  • Patent number: 6932684
    Abstract: A reciprocal blade lapping machine (20) is taught that is used for sharpening cutting and shearing blades. The lapping machine consists a convex lap plate (32) mounted on an enclosure (22) rotated by an electric motor (34) connected to a speed reducer (36). A lapping compound distribution system is positioned directly above the lap plate and disperses lapping compound (64) onto the convex upper surface (48) of the lap plate providing an abrasive media for removing parent material from a set of blades placed on the lap plate. A conditioning ring (66), including dead weigh within, is rotatably disposed on the lap plate impacting directly upon the rotating lap plate maintaining the convex contour. A pair of reciprocating work piece holders (74) slideably rest on the lap plate, and alternately slide work pieces (76) backward and forward in a straight line on the rotating lap plate upper surface.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: August 23, 2005
    Inventor: Roy H. Hunt
  • Patent number: 6890243
    Abstract: A method and apparatus are disclosed wherein, while holding an optical fiber 1 by an optical fiber holder section 4 so as to serve a distal end 1a of the optical fiber 1 as a free end and holding the distal end 1a of the optical fiber 1 in contact with a grinding flat portion 5b to cause the distal end 1a of the optical fiber 1 to be flexed on the grinding flat portion 5b, reciprocating movement for causing the distal end 1a of the optical fiber 1 to slide on the grinding flat portion 5b in a first sliding direction and an oppositely orientated second sliding direction is relatively implemented a plural number of times between the grinding flat portion 5b and the distal end 1a of the optical fiber 1.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: May 10, 2005
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Shinsuke Matsui, Mitsushi Matsunaga
  • Patent number: 6758721
    Abstract: An apparatus for lapping a workpiece including a plurality of magnetic heads supported by a tool is disclosed. The lapping apparatus comprises a rotary-lapping table having an abrasive surface, and a lapping device assembly provided so as to be movable with respect to the abrasive surface of the lapping table. The lapping device assembly includes a device provided at a lower portion of the lapping device assembly for supporting the tool and a device for respectively applying predetermined loads to a plurality of load applying portions of the tool. The load applying portions of the tool is disposed along the longitudinal direction of the tool. The load-applying device applies the loads from a plurality of different directions to at least one of the load applying portions of the tool so that the tool is deformed into a predetermined shape.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: July 6, 2004
    Assignee: TDK Corporation
    Inventors: Hiroshi Shindo, Akio Ogawa
  • Patent number: 6485362
    Abstract: A concave optical fiber ferrule holding plate for polishing an end face of an optical fiber is disclosed. The holding plate may be used alone for hand polishing or be provided as a component of an optical fiber polishing machine. The circular holding plate comprises a concave interior with one or more concentric wear rings disposed radially inwardly on said interior from the outer periphery of the holding plate to a point surrounding the optical fiber ferrule located in the center. The holding plate contacts a polishing material only at the peripheral wear ring thereby reducing contamination from the material of the holding plate which reduces contamination of the end face of the fiber during polishing. The degree of deterioration of the wear rings can be easily observed to determine when the ferrule holding plate must be replaced.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: November 26, 2002
    Inventor: Elias A. Awad
  • Patent number: 6471569
    Abstract: A device for grinding a rotary mower blade (16), the device comprising an adjustable support for receiving a rotary mower blade, means for fixing the blade relative to the support, means for feeding the support and blade both axially and transversely relative to a grinding wheel (4), and for pivoting the support towards and away from the grinding wheel.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: October 29, 2002
    Inventor: Stephen Geoffrey Bernhard
  • Publication number: 20020025757
    Abstract: The invention relates to a grinding machine for sharpening (honing) blades (4) of knives, scissors, hand tools or the like, with a magazine, a feed station (1) or similar, and with a honing station (2) for the blades (4), which has two contra-rotating grinding wheels (6a, 6b). In order to automate a method to be performed using the said machine whilst maintaining a high degree of machining accuracy, it is proposed to use a robot (3) with memory-programmable control having a manipulator (5) moveable in at least four of the six possible translatory and rotational degrees of spatial freedom, a gripper head, which has a holding device for accommodating and moving a blade (4), being fixed to the manipulator (5).
    Type: Application
    Filed: May 2, 2001
    Publication date: February 28, 2002
    Inventor: Andreas Gross
  • Patent number: 5938511
    Abstract: A grinding guide assembly for grinding or sharpening the carbide surface of a snowmobile wear bar. The grinding guide assembly features a pair of angle adjusters and a support guide that slide together back and forth across a pair of substantially parallel rods. The angle at which the wear bar contacts the grinding surface may be selected while the wear bar is securely clamped to the support guide. The length of the rods may be any desired length to allow the grinding guide assembly the capability to grind or sharpen an object of any length.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: August 17, 1999
    Inventor: James D. Patterson
  • Patent number: 5735731
    Abstract: An improved chemical mechanical polishing (CMP) device for chemically and mechanically planarizing the surface of a semiconductor wafer includes a flat wafer stage for loading and affixation of the semiconductor wafer so that the surface of a material to be polished, i.e. the surface of the wafer, faces up, and a cylindrical polishing pad formed above the exposed surface of the wafer to be polished which is rotatable at high speed so that the contact point of the wafer and the pad moves linearly. The stage is constructed to support a wafer by a vacuum suction through vacuum holes. The cylindrical polishing pad has a rotating axis for transmitting rotation at the center, thereof, and a double layer polishing pad having different hardness on a peripheral surface of the rotating axis.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: April 7, 1998
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Byoung-hun Lee
  • Patent number: 5711701
    Abstract: A polishing fixture (20) having nests (48) for releasably holding optical fiber connectors during polishing, inclined beams (44a) being deflectable to narrow the nests (48) and hold optical fiber connectors received in the nests (48), and a force transmitting body (26) avoiding jamming against the inclined beams (44a) by being moveable beside each of the beams (44a) in a direction that unopposes the direction toward which deflected portions of the inclined beams (44a) point.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: January 27, 1998
    Assignee: The Whitaker Corporation
    Inventors: Soren Grinderslev, Randall B. Paul
  • Patent number: 5618228
    Abstract: A holding fixture for a wheel and tire assembly enabling a single person to perform an operation on the tire such as grooving or the like. The fixture comprises a first U-shaped bracket having a base for mounting on a wall or other vertical surface and legs extending perpendicularly from the vertical surface. A second similar U-shaped bracket has a vertical base and horizontal legs adjustably bolted to the legs of the first bracket. The vertical base of the second bracket supports a horizontally extending support tube. A rotatable tube segment has a wheel mounting plate for a wheel and tire assembly affixed to one of its ends and a slotted positioning ring affixed to its other end. The tube segment and its slotted ring and mounting plate are captively and rotatively mounted on the support tube so that a tire and wheel assembly affixed to the mounting plate is rotatable about the support tube. A lock assembly is affixed to the support tube and the base of the second bracket.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: April 8, 1997
    Inventor: Richard L. Anderson
  • Patent number: 5445050
    Abstract: A hand-held ice skate blade sharpener tool is provided which includes a configuration for honing, concurrently, the hollow groove and the side walls of an ice skate blade, to dress the edges of the blade in situ, at any convenient time. The tool has a guide to accept the blade's hollow surface and its edges, and to align same with the honing surfaces of the tool. An extruded housing of plastic or like material surrounds the honing surfaces and is of a shape to provide a grasping surface while protecting the hand from the sharp edges of the skate blade. The entire assembly is relatively light weight and relatively small, thereby rendering the device reasonably inexpensive to manufacture. The tool is intended to be disposable.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: August 29, 1995
    Inventor: Michael R. Owens
  • Patent number: 5349784
    Abstract: An apparatus is provided for polishing the end face of an optical fiber encapsulated within a ferrule portion of a fiber optic connector device which terminates the optical fiber. The end of the optical fiber projects from the ferrule portion. A mounting plate has a forward surface and a receptacle for mounting the connector device, with the end of the optical fiber projecting from the forward surface, to permit the end face to be polished by moving the mounting plate over an appropriate polishing surface. A polishing plate forms a substrate having a recess in a forward surface thereof. A polishing film is adhered to the substrate, spanning the recess, to define an air space beneath the film in the recess.
    Type: Grant
    Filed: July 10, 1992
    Date of Patent: September 27, 1994
    Assignee: Molex Incorporated
    Inventors: Igor Grois, Ilya Makhlin, Mark Margolin