Patents by Inventor Erwin Wack

Erwin Wack 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).

  • Friction clutch for a transmission of a motor vehicle and a clutch plate for a friction clutch
    Patent number: 5542516
    Abstract: A friction clutch has a clutch plate with a hub and hub disc concentric to an axis of rotation, a lining support with friction linings, located on the one side of the hub disc, and a cover plate located on the other side. Coil springs for the load range can be located in preferably aligned apertures of the hub disc and of the lining supports and cover plate, and the coil springs can be in contact, on one end, with control edges of the apertures of lining supports and cover plate, and on the other end, with stop tabs of load friction discs located on both sides of the hub disc. At least one of the friction discs can have webs to hold stop tabs on a ring-shaped base-body, wherein the stop tabs can be reinforced so that stresses which are generated by torque transmitted by the applied forces can be limited.
    Type: Grant
    Filed: October 13, 1994
    Date of Patent: August 6, 1996
    Assignee: Fichtel & Sachs AG
    Inventor: Erwin Wack