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. 26, 2011
Filed:
Oct. 09, 2008
Vincent Lassus, Marseilles, FR;
Benjamin Talon, Cahors, FR;
Vincent Lassus, Marseilles, FR;
Benjamin Talon, Cahors, FR;
Eurocopter, , FR;
Abstract
A retraction cylinder () makes it possible to retract a leg () of a rotorcraft landing gear, the retraction cylinder () comprising a retraction chamber () and an extension chamber () separated by a head () of a piston (), the piston () sliding in a cylindrical sheath (). In addition, the retraction cylinder () comprises a return element () and a control chamber () furnished with a first fluid, this control chamber () being separated from the return element () by a movable release member (), the movable release member () sliding so that the retraction cylinder () fulfils a damping function when a control pressure exerted by the first fluid on the movable release member () is greater than a return pressure exerted by the return element ().