Patents by Inventor Charles R. Murphy

Charles R. Murphy 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: 4329777
    Abstract: An improved tool for wrapping wire around an electrical terminal to make an electrical connection. The tool includes a bit and a sleeve for receiving the bit. One end of the bit has a connecting member for coupling the bit to the chuck of a hand-held drive motor. The opposite end of the bit is provided with a tip having a recess axially aligned with an axially extending groove formed in one side of the main body of the bit. A discontinuity between the recess and the groove is defined by a ridge having a pair of relatively convergent edges which extend toward the axis of the bit and terminate at a notch axially aligned with the bottom of the groove in the bit body. A crescent-shaped projection extends axially outwardly from one side of the tip to wrap the end of the wire against the terminal. The sleeve has an enlargement at the end near the tip for receiving one end of a wire and guiding it to the groove and outwardly through a side window in the sleeve before rotating the bit.
    Type: Grant
    Filed: June 8, 1979
    Date of Patent: May 18, 1982
    Inventor: Charles R. Murphy
  • Patent number: 4169310
    Abstract: An improved tool for wrapping wire around an electrical terminal to make an electrical connection. The tool includes a bit and a sleeve for receiving the bit. One end of the bit has a connecting member for coupling the bit to the chuck of a hand-held drive motor. The opposite end of the bit is provided with a tip having a recess axially aligned with an axially extending groove formed in one side of the main body of the bit. A discontinuity between the recess and the groove is defined by a ridge having a pair of relatively convergent edges which extend toward the axis of the bit and terminate at a notch axially aligned with the bottom of the groove in the bit body. A crescent shaped projection extends axially outwardly from one side of the tip to wrap the end of the wire against the terminal at the end of a wire wrapping tool.
    Type: Grant
    Filed: March 6, 1978
    Date of Patent: October 2, 1979
    Assignee: Daniel G. Nilsson
    Inventor: Charles R. Murphy