Patents by Inventor Martin Pährisch

Martin Pährisch 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).

  • Diaphragm spring for a friction clutch
    Patent number: 6877596
    Abstract: A diaphragm spring for a friction clutch includes a ring-like body area and a plurality of spring tongues arranged in a row in the circumferential direction and extending radially inward from the body area. A stiffening rib formed in at least one of the spring tongues extends radially into the body area.
    Type: Grant
    Filed: August 11, 2003
    Date of Patent: April 12, 2005
    Assignee: ZF Sachs AG
    Inventors: Martin Pährisch, Ronald Beck, Alfred Schraut, Erwin Ziegler, Frank Hirschmann