Patents by Inventor Ward E. Laubach

Ward E. Laubach 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).

  • Steel arcing contact for circuit breaker
    Patent number: 4028513
    Abstract: The arcing contact of a circuit breaker is made of a steel body which is plated with a copper flash and is then silver-plated. An arcing contact tip which makes actual contact to a cooperating arcing contact is made of a conventional silver-molybdenum alloy which is attached to the steel arcing contact as by brazing. The steel arcing contact is then connected in parallel with a conventional main contact which is made of high conductivity copper, or some other material having a conductivity which is high in comparison to the conductivity of steel. The steel arcing contact is used in either a butt-type contact configuration or in a jaw-type contact configuration.
    Type: Grant
    Filed: May 8, 1975
    Date of Patent: June 7, 1977
    Assignee: I-T-E Imperial Corporation
    Inventor: Ward E. Laubach