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:
Nov. 21, 2023

Filed:

May. 13, 2021
Applicant:

Airbus Operations Limited, Bristol, GB;

Inventors:

Sean Kerr, Bristol, GB;

David Marles, Bristol, GB;

Paul Gordon L'Allier, Bristol, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 25/22 (2006.01); B64C 25/30 (2006.01); F15B 15/22 (2006.01);
U.S. Cl.
CPC ...
B64C 25/22 (2013.01); B64C 25/30 (2013.01); F15B 15/224 (2013.01);
Abstract

A single acting actuator for an aircraft landing gear assembly is disclosed having a piston mounted in a cavity and moveable relative to a housing between a retracted position and an extended position, the piston dividing the cavity into first and second pressure chambers. At least one of the pressure chambers is associated with first and second outlets, with the actuator being arranged such that, in respect of the relative movement in which the pressure chamber is the decreasing volume pressure chamber, in a first stage of the relative movement the first and second outlets are open thereby allowing actuator fluid to flow out of the pressure chamber through the first and second outlets and in a second stage of the relative movement the second outlet is open but the first outlet is closed, thereby acting to slow the relative movement of the piston with respect to the housing.


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