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:
Jun. 30, 2015
Filed:
Aug. 23, 2012
Richard Randall Rowan, Naperville, IL (US);
Steven Randall Lovell, Fort Wayne, IN (US);
Anton Leonard Rogness, Iii, Fort Wayne, IN (US);
Dale a Thomas, Bloomington, IL (US);
Anthony J Casale, Wauconda, IL (US);
David a Dornbach, Waukesha, WI (US);
Richard Randall Rowan, Naperville, IL (US);
Steven Randall Lovell, Fort Wayne, IN (US);
Anton Leonard Rogness, III, Fort Wayne, IN (US);
Dale A Thomas, Bloomington, IL (US);
Anthony J Casale, Wauconda, IL (US);
David A Dornbach, Waukesha, WI (US);
International Truck Intellectual Property Company, LLC, Lisle, IL (US);
Abstract
A hydraulic circuit for a motor vehicle supports operation of a power steering gear and a power assisted park brake unit incorporating a spring actuated hydraulic release (SAHR) chamber. The hydraulic circuit includes a pump with the power steering gear being connected to receive hydraulic fluid under pressure from the pump. Hydraulic fluid from the pump is delivered to first and second valves, the first or release control valve being connected to the SAHR chamber and the second or recirculation valve being coupled to return hydraulic fluid to a pump inlet.