Patents by Inventor William J. Heitz

William J. Heitz 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).

  • Piston pin retainer and method of using the same
    Patent number: 6412393
    Abstract: A piston-retaining mechanism for removable engagement with a piston head to secure a piston pin therein, the mechanism including a base coil portion and a subsequent coil portion, each coil portion approximating the other at a distance less than the cross-sectional dimension of either coil portion.
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: July 2, 2002
    Assignee: Exacto Spring Corporation
    Inventor: William J. Heitz