Patents by Inventor William A. Keen, Jr.

William A. Keen, Jr. 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).

  • Patent number: 4214119
    Abstract: High voltage bushings for use within SF.sub.6 circuit breakers are provided with a tandem arrangement of an outer acid resistant gasket and an inner gas impervious gasket to prevent contact between the bushing oil and the SF.sub.6 gas.
    Type: Grant
    Filed: May 3, 1978
    Date of Patent: July 22, 1980
    Assignee: General Electric Company
    Inventor: William A. Keen, Jr.