Patents by Inventor Lee J. Leisch

Lee J. Leisch 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).

  • Vacuum operated circuit breaker
    Patent number: 4855546
    Abstract: A vacuum operated circuit breaker includes in combination, a frame carrying a vacuum operator and a support assembly supporting a plurality of links one of which connects to a plunger part of the vacuum operator whereby when the links are pivoted the plunger enters and retracts from the vacuum operator and makes and breaks an electric circuit.
    Type: Grant
    Filed: March 17, 1987
    Date of Patent: August 8, 1989
    Inventor: Lee J. Leisch