Patents Assigned to Richard A. Kummerer
  • Patent number: 4020631
    Abstract: A pintle chain link composed of a singular rigid U-shaped link member with opposite sides and an arcuate-shaped crosspiece adjoining the sides. The sides have their open ends offset from the closed ends so that the latter may fit between the former of adjacent links. The sections of the sides at the closed ends also are tapered from a relatively thick part adjoining the crosspiece to a relatively narrow part adjoining the remainder of the sides. The arcuate-shaped crosspiece is also made thicker than the sides by compressing excess material into the crosspiece.
    Type: Grant
    Filed: July 8, 1975
    Date of Patent: May 3, 1977
    Assignees: Richard A. Kummerer, Alfred Den Besten
    Inventors: Claude L. Wildman, George A. Hellmer