Patents by Inventor Jon Kretzmann

Jon Kretzmann 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).

  • Push button switch with over center bridge
    Patent number: 5566819
    Abstract: A resilient bridge of a snap-action switch is normally held in an unactuated position by virtue of one end portion of the bridge bearing against a lobe formed integrally with a manually actuatable and linearly movable plunger. When the plunger is manually depressed toward an actuated position against the bias of a return spring, the lobe moves away from the end portion of the bridge. As an incident thereto, the bridge changes the state of the switch by automatically snapping over center along a path extending transversely of the path followed by the plunger.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: October 22, 1996
    Assignee: McGill Manufacturing Company, Inc.
    Inventors: James R. Lustgarten, John A. Stuhlmacher, Jon Kretzmann, Elmer Martin