Patents by Inventor Joseph A. Giangrasso

Joseph A. Giangrasso 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).

  • Machinists' production V-block
    Patent number: 6000688
    Abstract: A production V-block including four or more individually vertically adjustable V-blocks on a single ferromagnetic base for magnetically securing to a machine tool table, all of the V-blocks are ground to identical depths for simultaneous identical operations on several work pieces.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: December 14, 1999
    Inventor: Joseph A. Giangrasso
  • Pin grinding fixture
    Patent number: 4748774
    Abstract: A clamping fixture specifically designed for securing rods, such as ejector pins used in injection molding processes, that are to be accurately ground to a specific length. The fixture includes an adjustable stop member for indexing the end of a rod and a jaw block with an elongated V-groove and movable jaw for securing the rod along a length thereof. The movable jaw includes an novel angled ramp member for lifting a rod into a position to be clamped in the V-groove.
    Type: Grant
    Filed: January 9, 1987
    Date of Patent: June 7, 1988
    Inventor: Joseph A. Giangrasso
  • Machinists V-block
    Patent number: D333826
    Type: Grant
    Filed: July 11, 1991
    Date of Patent: March 9, 1993
    Inventor: Joseph A. Giangrasso