Patents by Inventor Randall L. Carnal

Randall L. Carnal 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).

  • Relay energizing circuit
    Patent number: 5394291
    Abstract: A method of energizing a relay comprising the steps of applying an energization signal to the relay having a voltage in excess of a rated voltage of the relay and then allowing the energization voltage to rapidly decay to a level within the rated voltage of the relay.
    Type: Grant
    Filed: December 27, 1993
    Date of Patent: February 28, 1995
    Assignee: Whirlpool Corporation
    Inventors: Donald E. Janke, Joseph M. Szynal, Ronald W. Guess, Greg A. Bradley, Randall L. Carnal