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:
Aug. 06, 2013
Filed:
May. 20, 2011
Applicant:
Ian M. Gunter, Burien, WA (US);
Inventor:
Ian M. Gunter, Burien, WA (US);
Assignee:
The Boeing Company, Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D 43/25 (2006.01); F16D 67/02 (2006.01); H02N 10/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An actuator assembly may comprise a housing, a shaft, a shape memory alloy (SMA) torque tube, and first and second unidirectional bearings. The SMA torque tube may rotate the shaft. The first unidirectional bearing may limit rotation of the shaft relative to the SMA torque tube to a first direction. The second unidirectional bearing may prevent rotation of the shaft relative to the housing along a second direction opposite the first direction.