Patents by Inventor Keith V. FELDT

Keith V. FELDT 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).

  • HYDRAULIC SYSTEM WITH PUMP OUTPUT SWITCHED BY LUBRICATION COMMAND AND TRANSMISSION INCLUDING THE SAME
    Publication number: 20210088130
    Abstract: A hydraulic circuit for moving a fluid includes an electric pump, a primary circuit, and a secondary circuit. The hydraulic circuit also includes a controller and a hydraulic control module. The hydraulic control module includes a solenoid valve assembly. Moreover, the controller is configured to control a pressure of the fluid at the output of the solenoid valve assembly. Finally, the hydraulic control module includes a switch valve assembly configured to selectively route the fluid from the pump to the primary circuit when the pressure of the fluid at the output of the solenoid valve assembly is lower than a predetermined pressure and to selectively route the fluid to the secondary circuit when the pressure of the fluid at the output of the solenoid valve assembly is greater than the predetermined pressure.
    Type: Application
    Filed: December 20, 2017
    Publication date: March 25, 2021
    Inventors: Keith V. FELDT, Chengyun GUO, Christopher E. BLAIR
  • Power transfer unit (PTU) assembly with hydraulically actuated disconnect rear output shaft
    Patent number: 10040346
    Abstract: An arrangement of a vehicle is provided having normal transverse engine/transmission normal two-wheel drive operation which can be selectively placed into four-wheel drive operation wherein a pump which powers the coupling or uncoupling is independent of the transmission lubrication pump and is powered by the transmission.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: August 7, 2018
    Assignee: BorgWarner Inc.
    Inventors: John H. Rode, Jeremy L. Cradit, Keith V. Feldt
  • POWER TRANSFER UNIT (PTU) ASSEMBLY WITH HYDRAULICALLY ACTUATED DISCONNECT REAR OUTPUT SHAFT
    Publication number: 20160288642
    Abstract: An arrangement of a vehicle is provided having normal transverse engine/transmission normal two-wheel drive operation which can be selectively placed into four-wheel drive operation wherein a pump which powers the coupling or uncoupling is independent of the transmission lubrication pump and is powered by the transmission.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 6, 2016
    Inventors: John H. RODE, Jeremy L. CRADIT, Keith V. FELDT