Patents by Inventor JAMES W. WEISSENFLUH

JAMES W. WEISSENFLUH 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).

  • Transmission torque converter
    Patent number: 11105419
    Abstract: A valve body for an automotive transmission includes a pressure regulator valve in the casting for controlling oil pressure within the torque converter. The valve has a bore to provide fluid communication with an exhaust circuitry in the transmission when the valve is moved by oil pressure from a first position to a second position. The regulator valve prevents excessive pressure and damage from ballooning of the torque converter housing. In an alternative non-lockup torque converter, a check ball in a modified separator plate moves to open and close an oil path in the plate to thereby control oil pressure.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: August 31, 2021
    Assignee: Goerend Transmission, Inc.
    Inventor: James W. Weissenfluh
  • TRANSMISSION TORQUE CONVERTER
    Publication number: 20200025291
    Abstract: A valve body for an automotive transmission includes a pressure regulator valve in the casting for controlling oil pressure within the torque converter. The valve has a bore to provide fluid communication with an exhaust circuitry in the transmission when the valve is moved by oil pressure from a first position to a second position. The regulator valve prevents excessive pressure and damage from ballooning of the torque converter housing. In an alternative non-lockup torque converter, a check ball in a modified separator plate moves to open and close an oil path in the plate to thereby control oil pressure.
    Type: Application
    Filed: July 18, 2019
    Publication date: January 23, 2020
    Inventor: JAMES W. WEISSENFLUH