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:
Jul. 21, 2020
Filed:
May. 03, 2018
Applicant:
Ratier-figeac Sas, Figeac, FR;
Inventors:
Julien Lassalle, Saint Jean Lagineste, FR;
Thibaut Marger, Beduer, FR;
Assignee:
RATIER-FIGEAC SAS, Figeac, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 11/40 (2006.01); F15B 13/043 (2006.01); F15B 11/042 (2006.01); F15B 13/16 (2006.01);
U.S. Cl.
CPC ...
B64C 11/40 (2013.01); F15B 11/0423 (2013.01); F15B 13/0438 (2013.01); F15B 13/16 (2013.01); F15B 2211/20546 (2013.01); F15B 2211/50536 (2013.01); F15B 2211/6309 (2013.01); F15B 2211/6313 (2013.01); F15B 2211/6336 (2013.01); F15B 2211/6652 (2013.01); F15B 2211/6653 (2013.01); F15B 2211/6656 (2013.01);
Abstract
Disclosed herein is a hydraulic actuator system comprising a servoactuator including a hydraulic actuator and a control valve, wherein the supply of hydraulic fluid to the servoactuator from a fluid supply is adjustable through a control system based on feedback information relating to the servoactuator. The hydraulic actuator system may e.g. be used for controlling blade pitch in a variable pitch propeller system such as may be found on a turboprop aircraft or a ship.