Patents by Inventor Robert S. Koehn

Robert S. Koehn 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: 5191690
    Abstract: A brake tool member is arranged for ease of impacting of a spring retainer clip structure relative to a brake cylinder for securement to a brake backing plate structure typically in an automotive environment. The structure includes an elongate handle coaxially aligned with a forwardly extending shank. A support flange orthogonally mounted to a forward distal end of the shank mounts a plurality of first and second mounting flanges, with the mounting flanges each including a semicylindrical ring segment arranged for positioning for abutment to the securement clip of the brake structure.
    Type: Grant
    Filed: April 7, 1992
    Date of Patent: March 9, 1993
    Inventor: Robert S. Koehn