Patents by Inventor Manfred Demmer

Manfred Demmer 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).

  • Method for protecting power connected machine part pairs from friction corrosion
    Patent number: 4267216
    Abstract: A method is provided for inhibiting the development of friction fatigue stress between the mating surfaces of paired machine parts, and particularly those subject to oscillatory loads. This is achieved by maintaining the mating surfaces separated by placing between them a material either of a different crystal structure than the parts separated, or a material of a greater hardness. The separating material may be in the form of a connecting element, or it may be coated onto one of the mating surfaces.
    Type: Grant
    Filed: August 9, 1979
    Date of Patent: May 12, 1981
    Assignee: Mannesmann Demag AG
    Inventors: Klaus Boddenberg, Jurgen Waldmann, Manfred Demmer