Patents Assigned to Stahlwerke Bruninghaus Gesellschaft mit beschrankter Haftung
  • Cylindrical helical compression spring
    Patent number: 4377280
    Abstract: A cylindrical helically coiled compression spring made of a length of wire or rod having a circular cross section, the spring having interior windings providing the main spring action and end winding portions at least one of which is arranged to be supported against a spring disc, and the wire rod being formed to have a diameter which is greater in the region of the at least one end winding portion than in the region of the interior windings.
    Type: Grant
    Filed: December 27, 1979
    Date of Patent: March 22, 1983
    Assignee: Stahlwerke Bruninghaus Gesellschaft mit beschrankter Haftung
    Inventors: Josef Wienand, Horst Beihammer