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. 30, 2018
Filed:
Sep. 30, 2011
Applicants:
Frédéric Brettes, Boissise le Roi, FR;
Alain François Jean Lavie, Yerres, FR;
Dominique Raulin, Saint Fargeau Ponthierry, FR;
Inventors:
Frédéric Brettes, Boissise le Roi, FR;
Alain François Jean Lavie, Yerres, FR;
Dominique Raulin, Saint Fargeau Ponthierry, FR;
Assignee:
SNECMA, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 7/00 (2006.01); F04D 29/56 (2006.01); F04D 29/32 (2006.01);
U.S. Cl.
CPC ...
F01D 7/00 (2013.01); F04D 29/323 (2013.01); F04D 29/563 (2013.01); F05D 2220/36 (2013.01); F05D 2260/50 (2013.01); F05D 2260/79 (2013.01);
Abstract
A hydraulic device for changing the pitch of a propeller including a piston rod actuated by a hydraulic fluid, the piston rod including at its end a clevis mount able to provide a connection for transmitting the movements of the piston rod so as to change the pitch of at least one propeller, a thread nut held in position on the clevis of the piston rod by a fastener, the nut being able to collaborate with a threaded rod in order to provide a connection.