Patents by Inventor Wim Leplae

Wim Leplae 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).

  • Work vehicle with hydraulic assist for power off steering
    Patent number: 9867325
    Abstract: A steering system for a work vehicle includes a steering hand pump, a hydraulic main supply line fluidly coupled with the steering hand pump and including a check valve, and a normally open, two position valve. The valve includes an inlet fluidly couplable with a pressurized access point of a hydraulic sub-system, an outlet fluidly coupled with the main supply line on a downstream side of the check valve, and a pilot port fluidly coupled with the main supply line on an upstream side of the check valve. The valve is operable in the closed position based on pressure in the main supply line when the main supply line is pressurized from a pressure source, and operable in the open position and interconnecting the pressurized access point with the main supply line through the outlet when the main supply line is not pressurized from the pressure source.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: January 16, 2018
    Assignee: CNH Industrial America LLC
    Inventors: Jimmie D. Clifford, Brent E. Smith, Bruce E. Anderson, Jeffrey C. Trowbridge, Guy H. J. Osselaere, Rik Vandendriessche, Carlos J. A. Verheye, Wim Leplae
  • WORK VEHICLE WITH HYDRAULIC ASSIST FOR POWER OFF STEERING
    Publication number: 20150305225
    Abstract: A steering system for a work vehicle includes a steering hand pump, a hydraulic main supply line fluidly coupled with the steering hand pump and including a check valve, and a normally open, two position valve. The valve includes an inlet fluidly couplable with a pressurized access point of a hydraulic sub-system, an outlet fluidly coupled with the main supply line on a downstream side of the check valve, and a pilot port fluidly coupled with the main supply line on an upstream side of the check valve. The valve is operable in the closed position based on pressure in the main supply line when the main supply line is pressurized from a pressure source, and operable in the open position and interconnecting the pressurized access point with the main supply line through the outlet when the main supply line is not pressurized from the pressure source.
    Type: Application
    Filed: April 17, 2015
    Publication date: October 29, 2015
    Inventors: Jimmie D. Clifford, Brent E. Smith, Bruce E. Anderson, Jeffrey C. Trowbridge, Guy H.J. Osselaere, Rik Vandendriessche, Carlos J.A. Verheye, Wim Leplae