Patents by Inventor Winfried F. Schulz

Winfried F. Schulz 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).

  • Multiple ratio automatic transmission and torque converter
    Patent number: 5553694
    Abstract: A control system for engaging and releasing a torque converter bypass clutch and for varying the torque capacity of the clutch by adjusting the torque converter torus chamber pressure in accordance with changing operating variables, the bypass clutch including a clutch release pressure chamber that is maintained at a calibrated pressure threshold valve whereby pressure clutch capacity control is achieved by controlling pressure differential in the converter.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: September 10, 1996
    Assignee: Ford Motor Company
    Inventors: Winfried F. Schulz, Johann Kirchhoffer, Hans-Peter Wirtz