Patents by Inventor Richard L. Comer

Richard L. Comer 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).

  • Glow plug manufacture
    Patent number: 4312120
    Abstract: The invention is a method of making a pressure tight seal for a glow plug characterized by applying a high current to heat a groove (31) in the outer shell (3) of a glow plug while simultaneously pressing together the sealing elements adjacent the groove i.e. an insulator (2), a gasket (1), the flared end (42) of a protective tube (4) and a shoulder (32) within the shell (3). The grooves (31) concentrates the heat and allows the shell to be compressed around the elements of the seal.
    Type: Grant
    Filed: May 22, 1980
    Date of Patent: January 26, 1982
    Assignee: Bendix Autolite Corporation
    Inventor: Richard L. Comer