Patents by Inventor John F. Carragan

John F. Carragan 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).

  • Firing circuit
    Patent number: 4015193
    Abstract: The firing circuit serves to interface a load circuit including a semiconductor device capable of large load currents and a control circuit operating at logic power levels and provides a relatively low current output to the gate terminal of the semiconductor device, which may be a triac, for controlling the load circuit.
    Type: Grant
    Filed: November 11, 1975
    Date of Patent: March 29, 1977
    Assignee: General Time Corporation
    Inventors: Robert S. Lundin, John F. Carragan