Patents by Inventor Eldon Bertel Heft

Eldon Bertel Heft 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).

  • Molded case circuit breaker with improved interrupting capacity
    Patent number: 4011420
    Abstract: A molded case circuit breaker of relatively narrow width is afforded dramatically increased current interrupting capacity by providing shielding against the electromagnetic field developed as the result of short circuits flowing through a contiguous circuit breaker. Additionally, an arc runner is added to cooperate with an improved arc chute construction in controlling to extinction the arc developed incident to an interruption. The case is also vented to relieve the internal gas pressure during arcing.
    Type: Grant
    Filed: January 22, 1975
    Date of Patent: March 8, 1977
    Assignee: General Electric Company
    Inventor: Eldon Bertel Heft
  • Electric circuit breaker
    Patent number: 3953812
    Abstract: A circuit breaker designed for automated assembly includes pairs of fixed and movable contacts, the latter carried by a carrier mounted for reciprocating movement in the breaker case. Operating and trip mechanism parts are mounted on a frame positioned in the case. A handle slideably mounted by the case actuates the operating mechanism to open and closed circuit positions. A fixture is utilized with the frame for calibrating the thermal trip setting and for partial assembly of the operating mechanism.
    Type: Grant
    Filed: October 9, 1974
    Date of Patent: April 27, 1976
    Assignee: General Electric Company
    Inventors: Eldon Bertel Heft, Joseph Francis Johnson