The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 16, 2018
Filed:
Apr. 17, 2015
Cnh Industrial America Llc, New Holland, PA (US);
Jimmie D. Clifford, Lancaster, PA (US);
Brent E. Smith, Lititz, PA (US);
Bruce E. Anderson, Lancaster, PA (US);
Jeffrey C. Trowbridge, Stevens, PA (US);
Guy H. J. Osselaere, Zedelgem, BE;
Rik Vandendriessche, Eernegem, BE;
Carlos J. A. Verheye, Roeselare, BE;
Wim Leplae, Ardooie, BE;
CNH Industrial America LLC, New Holland, PA (US);
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.