Patents by Inventor Edward J. Karr

Edward J. Karr 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).

  • Rope clamping device
    Patent number: 4493134
    Abstract: A cable, wire or rope clamping device including a pair of plates having surfaces defining serpentine grooves to receive and retain segments of the article to be clamped. The plates are moveable between an open position for insertion of the segments and a closed position with the surfaces in closely spaced face-to-face relation to retain the segments within the grooves.In one form the clamping device is formed of nonconductive material and is useable to connect or splice electrical conductors.
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: January 15, 1985
    Inventor: Edward J. Karr
  • Rotating nibbler apparatus
    Patent number: 4249309
    Abstract: The nibbler apparatus comprises a quickly changeable rotating cutter having a modified sinusoidal groove of a predetermined width and depth. The rotating cutter is mounted in a die with the modified sinusoidal groove largely enclosed within the die. The modified sinusoidal grooved cutter picks up the material to be cut, carrying it upward into the die opening and there the material is sheared. Flat material can be cut in any direction and the direction of the material being fed into the cutter can be changed at any time.
    Type: Grant
    Filed: July 23, 1979
    Date of Patent: February 10, 1981
    Assignee: B. W. Darrah, Inc.
    Inventor: Edward J. Karr