Patents by Inventor Robert W. Hammelmann

Robert W. Hammelmann 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).

  • Flexible coupling having molded plastic flexible diaphragms
    Patent number: 4411634
    Abstract: A flexible coupling having molded plastic flexible diaphragms and a molded composite spacer shaft is disclosed. The flexible diaphragms have an axially formed convoluted bore shrunk fit onto a mating convoluted surface of the spacer shaft. The flexible diaphragms are attached about their periphery to radial flanges of input and output members adapted to be connected to rotatable shafts.
    Type: Grant
    Filed: November 10, 1980
    Date of Patent: October 25, 1983
    Assignee: The Bendix Corporation
    Inventor: Robert W. Hammelmann