Patents by Inventor Judith Kocsis

Judith Kocsis 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).

  • Two piece hydraulic piston assembly with swaged piston-sleeve joint
    Patent number: 5014599
    Abstract: A piston and piston support rod assembly in which the piston is formed as a sheet metal stamping. A central sleeve is attached to the end wall of the stamped piston by a swaging operation performed on an annular section of the end wall. An undercut area of the sleeve defines a mandrel surface that effectively grips the end wall material deformed by the coining operation. A principal advantage of the new structure is a relatively low manufacturing cost.
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: May 14, 1991
    Assignee: Federal-Mogul Corporation
    Inventors: Judith Kocsis, Joseph A. Stojkov, Michael E. Towler