Patents by Inventor James V. Halvorsen

James V. Halvorsen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Radius dressing apparatus
    Patent number: 5003730
    Abstract: A dresser is moved on a pivotal dresser holder arm relative to the pivot axis of the arm by a computer control unit using closed loop servo feedback from a position transducer to successively dress different radii and/or shapes (convex or concave) onto the same or different grinding wheels.
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: April 2, 1991
    Assignee: Bryant Grinder Corporation
    Inventor: James V. Halvorsen
  • Radius dressing apparatus
    Patent number: 4805585
    Abstract: A dresser carried on a pivotal dresser holder arm is adjustable in position relative to the pivot axis of the arm by a computer control unit using closed loop servo feedback from a position transducer to successively dress different radii and/or shapes (convex or concave) onto the same or different grinding wheels.
    Type: Grant
    Filed: August 19, 1987
    Date of Patent: February 21, 1989
    Assignee: Bryant Grinder Corporation
    Inventor: James V. Halvorsen
  • Replaceable collet in double diaphragm chuck
    Patent number: 4211425
    Abstract: A work holder adapted to minimize clamp distortion of a workpiece by providing a movable metallic collet encompassing the workpiece, and a plurality of front and rear jaws to grip the metallic collet with different pressure forces at the front and rear sections of the collet.
    Type: Grant
    Filed: August 21, 1978
    Date of Patent: July 8, 1980
    Assignee: Bryant Grinder Corporation
    Inventor: James V. Halvorsen
  • Replaceable collet in double diaphragm chuck
    Patent number: 4133544
    Abstract: A work holder adapted to minimize clamp distortion of a workpiece by providing a movable metallic collet encompassing the workpiece, and a plurality of front and rear jaws to grip the metallic collet with different pressure forces at the front and rear sections of the collet.
    Type: Grant
    Filed: October 25, 1977
    Date of Patent: January 9, 1979
    Assignee: Bryant Grinder
    Inventor: James V. Halvorsen