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:
Feb. 18, 2025
Filed:
Jun. 17, 2022
Cambridge Mechatronics Limited, Cambridge, GB;
James Howarth, Cambridge, GB;
Andrew Benjamin Simpson Brown, Cambridge, GB;
René Kist, Cambridge, GB;
Stephen Matthew Bunting, Cambridge, GB;
Alexander Doust, Cambridge, GB;
CAMBRIDGE MECHATRONICS LIMITED, Cambridge, GB;
Abstract
An SMA actuator assembly () for driving or rotating a movable part () in a predetermined direction or sense by a plurality of repeated incremental steps is provided. The SMA actuator assembly comprises the movable part; a first engagement portion () for engaging the movable part; two SMA wires () arranged to move the first engagement portion such that the first engagement portion repeatedly, for each of said incremental steps, is configured to do the following: engage with the movable part from a starting position, exert a force or torque on the movable part in the predetermined direction and disengage from the movable part and return to the starting position. The exertion of the force or torque on the movable part and the engaging or disengaging with the movable part are caused by contraction or relaxation of the two SMA wires.