Patents by Inventor George B. Cushing

George B. Cushing 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).

  • Vapor-cooled terminal-bushings for oil-type circuit-interrupters
    Patent number: 4123618
    Abstract: An improved vapor-cooled terminal-bushing is provided for increased current-carrying capacity, such as 6,000 amperes, for example, in an oil-type circuit-breaker, being provided with a "dry" body portion, utilizing resinous materials, such as epoxy-resin formulations, for example.Preferably, the body portion of resinous materials, such as epoxy resin, for example, is composite, or of a two-piece construction, having an inner first epoxy-resin formulation having improved dielectric strength, and an outer-disposed externally-located "petticoat"-type insulating second body portion, having weather-sheds, the second weather-shed annular body portion being preferably cast directly onto the inner high-dielectric-strength first epoxy-body portion, and having some flexibility for adherence purposes.
    Type: Grant
    Filed: June 9, 1976
    Date of Patent: October 31, 1978
    Assignee: Westinghouse Electric Corp.
    Inventors: George B. Cushing, Richard E. Kothmann