Patents by Inventor James D. Bock

James D. Bock 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).

  • Camper lift jack and hand crank
    Patent number: 4784369
    Abstract: A lifting jack for campers or similar structures. The jack includes a base with extensible tubes and a hand crank for raising and lowering one of the tubes to a desired height. The hand crank includes a handle which slips over a rotatable shaft and serves to rotate the shaft and raise or lower the tube. The handle also defines a hex bore for tightening the hex nuts associated with the jack mounting bracket.
    Type: Grant
    Filed: April 21, 1988
    Date of Patent: November 15, 1988
    Assignee: Bock Products, Inc.
    Inventor: James D. Bock