Patents by Inventor Frederick L. Knop, Jr.

Frederick L. Knop, Jr. 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: 4022536
    Abstract: A hinge pin construction including a pin adapted to journal an arm or the like, an annular wedge member associated with one end of the pin, a collet receivable on the wedge member, a bolt extending through the collet to be threadably received in a bore in a pin, the bolt also being threadably received in the collet. The threads in the collet have a lesser pitch than the threads in the bore so as to provide a differential action to properly seat the collet on the wedge member with a minimum of friction.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: May 10, 1977
    Assignee: Caterpillar Tractor Co.
    Inventors: Donald A. Piepho, Frederick L. Knop, Jr.