Patents by Inventor William M. Heyser

William M. Heyser 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).

  • Device for coupling coil springs compressed in series in a clutch damper
    Patent number: 4891033
    Abstract: A helical coil spring coupler for clutch dampers used in torque converters or clutches wherein the coil springs are compressed in series alignment end-to-end in an arcuate channel. Each coil spring-to-coil spring interface has a ball and socket coupling attached to the springs and providing force transmission axially through each coil. The spring end coils are fully supported by a flange of the couplings; preventing spring end coil breakage.
    Type: Grant
    Filed: April 20, 1988
    Date of Patent: January 2, 1990
    Assignee: Automatic Spring Coiling Co.
    Inventor: William M. Heyser