Expandable Mandrel Patents (Class 269/48.1)
Plural pin mandrel (Class 269/48.2)
  • Workpiece insertion tool with angular compliance
    Patent number: 6289566
    Abstract: A workpiece holder for a press tool has a mounting ring which carries a circular retainer ring for frictionally engaging the inside of the workpiece and has a non-planar or curved end face engaged with a complimentary shaped end face of a body of the pressing tool to permit relative angular movement between the mounting ring and pressing tool body. This permits the axis of the mounting ring and hence, the axis of the workpiece carried by the mounting ring, to be angularly inclined relative to the axis of the pressing tool body to permit substantially coaxial insertion of the workpiece into a bore of a body even when the axis of the pressing tool body is angularly offset or skewed relative to the axis of the bore.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: September 18, 2001
    Assignee: Unova IP Corp.
    Inventor: Orrin P. Beggs
  • Free-floating hydraulic clamping device using expandable arbor
    Patent number: 6241228
    Abstract: The present invention provides a workholder for securing a work piece by engaging at least one bore contained in the work piece. The workholder includes a support platform, bore clamping device, and a locator assembly. The bore clamping device is mounted to the support platform and has a cylindrical, expandable arbor extending upwardly from the support platform for positioning in and engaging the bore.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: June 5, 2001
    Inventor: Charles Chupick
  • Quick adjusting envelope spreader arm
    Patent number: 6220572
    Abstract: A quick adjusting arm for an envelope spreader includes a bar member mounted to an articulated arm of the envelope spreader and a sleeve with a hook installed on the bar member. The bar member has a plurality of adjusting holes to position the sleeve at a selected position. The sleeve includes a single positioning hole, and a quick release pin, for example, a spring ball pin, is inserted through the positioning hole and the selected adjusting hole.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: April 24, 2001
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Theophile Henry Louchart, III, Robert C. Springman, Nicholas P. Marck
  • Method for producing a seamless metallic belt
    Patent number: 6182349
    Abstract: A method for producing a seamless metallic belt without a welded line and capable of being easily produced in high accuracy. A seamless belt material 21 having a defined length as a whole is placed on a core 11 and is held in a stretching state on the core 11 thermally expanded by heating, and further, in the above state, an outer circumference of the belt material 21 is cut to a predetermined thickness. The seamless metallic belt 20 is obtained by removing after the core 11 is cooled.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: February 6, 2001
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Kouzaburo Matsuzawa, Atsushi Fujii, Akira Funaki