Patents by Inventor Arthur W Hoffmann

Arthur W Hoffmann 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).

  • Self retaining clevis pin and clevis assembly
    Patent number: 6357955
    Abstract: A self retaining elongated pin for use in a polymer clevis is disclosed. The pin has a generally cylindrical shaft diameter with an enlarged head at one end. Knurling is provided on either the shaft or head to resist axial rotation of the pin. Axial translation of the pin is restrained by the head in the direction toward the head and by fetters in the direction away from the head. The fetters engage the clevis in an interference fit. The fetters are angulated such that the fetter tip is directed toward the head to preferentially favor insertion and resist removal.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: March 19, 2002
    Assignee: Johnson Controls Technology Company
    Inventors: Arthur W Hoffmann, Bruce A Hiemstra