Patents by Inventor Robert E. Matijick

Robert E. Matijick 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: 4938731
    Abstract: A rotatable coupling having a male member (2) and a female member (4) each rotatable about central axes .alpha. and .beta.. The male member has lobes (16) and the female member cavities (50) for mutual engagement. The male lobes terminate in wedge-shaped portions (18), the edges of which lie in a common plane. The female terminates in a flat bottom surface (40).
    Type: Grant
    Filed: February 7, 1989
    Date of Patent: July 3, 1990
    Assignee: Barry Wright Corporation
    Inventors: Phuson Nguyen, Robert E. Matijick