Patents by Inventor Frank T. Mazurik

Frank T. Mazurik 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).

  • Patent number: 4908928
    Abstract: A method and apparatus for riveting two workpieces (10, 12) together by simultaneously upsetting both ends of a slug rivet (R) while maintaining the outer surface (16) of one of the workpieces (10) in a substantially constant fixed work plane (20) during riveting. The workpieces are held between two clamps (18, 28), one of the clamps (18) establishing the fixed work plane. After drilling, a slug rivet is placed within the drilled hole, and then a first riveting ram (42) is moved to establish a desired die cavity. A second riveting ram (58) is then moved until it just contacts the rivet. The rams (42, 58) are then simultaneously moved towards each other at equal rates to simultaneously form upset heads on both ends of the rivet.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: March 20, 1990
    Inventors: Frank T. Mazurik, Mark J. Andrews, James L. Birke
  • Patent number: 4819856
    Abstract: Method and apparatus for inserting fasteners into holes in a workpiece. The apparatus includes a finger carrying device which is carried by an anvil for telescoping movement relative to the anvil, the finger carrying device includes a bore coaxial with the anvil and through which the anvil may pass as it moves from a raised position to a lowered position. The finger carrying device is provided with a side port through which fasteners may be inserted by a gravity injector, the side port being disposed below the anvil when it is in its raised position. A plurality of annular arrays of resilient fingers are mounted in the bore below the side port. A fastener, after being injected into the bore of the finger carrying device, is pushed by the anvil through the fingers as the anvil moves to its lowered position, the annular arrays of resilient fingers properly orienting the fastener in coaxial alignment with the anvil and with a hole in a workpiece.
    Type: Grant
    Filed: June 28, 1988
    Date of Patent: April 11, 1989
    Assignee: Gemcor Engineering Corp.
    Inventors: John W. Davern, Frank T. Mazurik