Patents Assigned to Luk Lamellen u. Kupplungsbau GmbH
  • Resilient structural member such as a plate spring
    Patent number: 4135283
    Abstract: A resilient structural member is hardened and tempered, and partially shot peened, forming a roughened surface. The surface is smoothened to an at least partial extent by grinding and polishing in a drum, or by an electrochemical process.
    Type: Grant
    Filed: March 11, 1977
    Date of Patent: January 23, 1979
    Assignee: Luk Lamellen u. Kupplungsbau GmbH
    Inventor: Ernst Kohlhage