Patents by Inventor Fritz Benninghoff

Fritz Benninghoff 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).

  • Wire cable chain with detachable traveling cushions
    Patent number: 3973807
    Abstract: A wire cable chain in which spaced links are connected by wire cables. Resilient cushion structures are provided extending between each pair of adjacent links. Each link has a transverse groove on the cushion structure side and each cushion structure has a metal flange at each of the fore and aft edges insertable in one end of said groove and slidable in the groove into fully inserted position. An abutment stops each cushion structure in inserted position in the chain and cams on the cushion structure cooperate with abutment shoulders on the chain links to lock each cushion structure in inserted position.
    Type: Grant
    Filed: July 15, 1974
    Date of Patent: August 10, 1976
    Assignee: DIEHL
    Inventors: Otto Korner, Fritz Benninghoff, Klaus Spies