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:
Apr. 07, 2015
Filed:
Apr. 21, 2011
Applicants:
Matthew Olson, Maple Grove, MN (US);
James Prazak, White Bear Lake, MN (US);
Inventors:
Matthew Olson, Maple Grove, MN (US);
James Prazak, White Bear Lake, MN (US);
Assignee:
Parker Hannifin Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 21/04 (2006.01); F15B 7/00 (2006.01); F15B 15/18 (2006.01);
U.S. Cl.
CPC ...
F15B 7/006 (2013.01); F15B 15/18 (2013.01); F15B 2211/20561 (2013.01); F15B 2211/27 (2013.01); F15B 2211/3051 (2013.01); F15B 2211/40515 (2013.01); F15B 2211/50518 (2013.01);
Abstract
An electro-hydraulic actuator (EHA) includes a hydraulic circuit having a plurality of pressure compensated flow control valves for limiting the maximum flow rate through the fluid conduits regardless of the loads imparted on the actuator. In one embodiment of the EHA, a plurality of combination manual override/thermal expansion valves that simplify the manufacture of the EHA.
Quick Actions:
Olson, Matthew. (2015). Electro-hydraulic actuator (U.S. Patent No. 8997473). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8997473
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile