Patents by Inventor Edward J. Shipek

Edward J. Shipek 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).

  • Bearing having iron sulfur matrix
    Patent number: 4233071
    Abstract: A bearing with or without a backing comprising a sintered porous body formed of a composition containing 1/2 to 6% by weight sulfur, 0 to 60% copper, and the balance iron. The body may be impregnated with a lubricant.
    Type: Grant
    Filed: January 4, 1979
    Date of Patent: November 11, 1980
    Assignee: General Motors Corporation
    Inventors: John C. Bierlein, Edward J. Shipek
  • Bearing having iron sulfur matrix
    Patent number: 3985408
    Abstract: A bearing comprising a steel backing with a porous matrix composition comprising 1/2 to 6 percent by weight sulfur, 0 to 60 percent copper, and the balance iron which is impregnated with babbitt.
    Type: Grant
    Filed: October 10, 1975
    Date of Patent: October 12, 1976
    Assignee: General Motors Corporation
    Inventors: John C. Bierlein, Edward J. Shipek