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:
Sep. 09, 2025

Filed:

Jun. 06, 2023
Applicant:

The Boeing Company, Chicago, IL (US);

Inventors:

Christopher M. Alley, Seattle, WA (US);

Leanne M. Campbell, Snohomish, WA (US);

Gabriela K. Defrancisci, Edmonds, WA (US);

Gregory J. Vering, Seattle, WA (US);

Aaron P. Knock, Seattle, WA (US);

Mitchell Mellor, Bothell, WA (US);

Justin D. Cottet, Snohomish, WA (US);

Assignee:

The Boeing Company, Arlington, VA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 25/20 (2006.01); B64C 25/12 (2006.01); B64C 25/60 (2006.01); B64C 25/00 (2006.01);
U.S. Cl.
CPC ...
B64C 25/20 (2013.01); B64C 25/12 (2013.01); B64C 25/60 (2013.01); B64C 2025/008 (2013.01);
Abstract

A landing gear including an outer cylinder, a shock strut assembly, and a passive shrink mechanism. The outer cylinder is coupled to a frame of an aircraft about a trunnion axis of rotation. The shock strut assembly is coupled to the outer cylinder for reciprocation along a longitudinal axis of the outer cylinder. The passive shrink mechanism includes: a first shrink link member coupled to the outer cylinder, a second shrink link member coupling the first shrink link member to the shock strut assembly, a crank member coupled to the outer cylinder, a first connecting link coupling the crank member to a walking beam of a landing gear retract mechanism, and a second connecting link coupling the crank member to the first shrink link member. The passive shrink mechanism is passively extended and shortened through actuation of the landing gear retract mechanism with deployment and retraction of the landing gear.


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