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:
Feb. 20, 2018
Filed:
Nov. 07, 2013
Applicant:
Parker-hannifin Corporation, Cleveland, OH (US);
Inventors:
Ralf Gomm, Charlotte, NC (US);
Dale Vanderlaan, Waxhaw, NC (US);
Assignee:
Parker-Hannifin Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 11/00 (2006.01); F15B 15/08 (2006.01);
U.S. Cl.
CPC ...
F15B 11/003 (2013.01); F15B 15/08 (2013.01); F15B 2211/20515 (2013.01); F15B 2211/20538 (2013.01); F15B 2211/20561 (2013.01); F15B 2211/20569 (2013.01); F15B 2211/27 (2013.01); F15B 2211/30515 (2013.01); F15B 2211/327 (2013.01); F15B 2211/353 (2013.01); F15B 2211/633 (2013.01); F15B 2211/6346 (2013.01); F15B 2211/6651 (2013.01); F15B 2211/6653 (2013.01); F15B 2211/761 (2013.01); F15B 2211/851 (2013.01);
Abstract
A method and system is provided for controlling a hydraulic actuator in a work machine by opening a load holding valve in a measured fashion in order to leak hydraulic pressure back into a depressurized portion of the hydraulic circuit, thereby minimizing or eliminating jerkiness in the actuator when the actuator is under an external load.