Patents by Inventor John C. Benson

John C. Benson 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).

  • Pole unit mechanism for closing the contacts in an oil circuit breaker
    Patent number: 3964338
    Abstract: A circuit breaker of the oil type having an operating mechanism for providing an improved force operation of the contact lift rod. The mechanism includes a linkage arrangement with a scissor-type toggle to provide a mechanical advantage for increasing the force for closing the contacts. In addition, the improved pull rod mechanism is particularly well adapted for location in relatively small enclosures.
    Type: Grant
    Filed: April 10, 1974
    Date of Patent: June 22, 1976
    Assignee: Allis-Chalmers Corporation
    Inventors: John C. Benson, George L. Hossfield, Jr.