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.

Date of Patent:
Oct. 06, 2015

Filed:

Mar. 30, 2012
Applicants:

Xavier Jubert, Boulogne-Billancourt, FR;

Ludovic Dufay, Saint-Cyr-l'Ecole, FR;

Sébastien Ernis, Chatenay-Malabry, FR;

Inventors:

Xavier Jubert, Boulogne-Billancourt, FR;

Ludovic Dufay, Saint-Cyr-l'Ecole, FR;

Sébastien Ernis, Chatenay-Malabry, FR;

Assignee:

MESSIER-BUGATTI-DOWTY, Velizy Villacoublay, FR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B 15/22 (2006.01); F15B 15/14 (2006.01); F15B 21/04 (2006.01); F15B 15/20 (2006.01);
U.S. Cl.
CPC ...
F15B 15/149 (2013.01); F15B 15/20 (2013.01); F15B 21/04 (2013.01); F15B 21/044 (2013.01);
Abstract

A hydraulic actuator containing a hollow body defining a cylindrical cavity and a rod which is mounted to slide within the body along a sliding axis between two end positions and which is integral with a piston sliding in a sealed manner within the cylindrical cavity in order to define two chambers. The rod defines an interior passage, connecting the two chambers, which has a valve comprising a shut-off member which is returned towards a seat and closes the passage. The rod receives a push member which can move relative to the rod between a position apart from the shut-off member and a position forcing the shut-off member to open. The push member is constrained, when the rod reaches the end of its stroke, by the push member engaging with a portion of the hollow body.


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