US 12,228,115 B2
Shape memory alloy actuation apparatus
Stephen Matthew Bunting, Cambridge (GB); Andrew Benjamin Simpson Brown, Cambridge (GB); Marc-Sebastian Scholz, Cambridge (GB); and James Howarth, Cambridge (GB)
Assigned to CAMBRIDGE MECHATRONICS LIMITED, Cambridge (GB)
Filed by CAMBRIDGE MECHATRONICS LIMITED, Cambridge (GB)
Filed on Oct. 6, 2023, as Appl. No. 18/377,704.
Application 18/377,704 is a division of application No. 17/890,700, filed on Aug. 18, 2022, granted, now 11,815,073.
Application 17/890,700 is a continuation of application No. 16/960,410, granted, now 11,454,221, issued on Sep. 27, 2022, previously published as PCT/GB2019/050160, filed on Jan. 22, 2019.
Claims priority of application No. 1801007 (GB), filed on Jan. 22, 2018; application No. 1810204 (GB), filed on Jun. 21, 2018; and application No. 1811621 (GB), filed on Jul. 16, 2018.
Prior Publication US 2024/0035454 A1, Feb. 1, 2024
Int. Cl. F03G 7/06 (2006.01)
CPC F03G 7/065 (2013.01) [F03G 7/0614 (2021.08)] 14 Claims
OG exemplary drawing
 
1. A shape memory alloy actuation apparatus comprising:
a support structure;
a movable element supported on the support structure by a suspension system arranged to guide movement of the movable element along a movement direction with respect to the support structure; and
an only single straight shape memory alloy actuator wire, wherein the only single shape memory alloy actuator wire is connected between the movable element and the support structure for driving movement of the movable element relative to the support structure, and is inclined at an acute angle greater than 0 degrees with respect to a plane normal to the movement direction.