Shape Memory Alloy Bistable Actuator

Abstract: the present embodiments relate to a bistable sma actuator. the bistable sma actuator as described herein can include a two-position actuator to move a bistable structure between two positions. multiple sma actuators can be disposed opposite one another to move the bistable structure between the two positions. for example, a first sma actuator can actuate to move the bistable structure from a first position to a second position. after actuation by the first sma actuator, the actuator can de-actuate, and the bistable structure can use spring force to hold the bistable structure in the second position. the bistable structure can include multiple springs that use force(s) from the springs to hold the bistable structure at a position with zero external force provided by the sma actuators.

Inventor(s): Mark A. Miller

CPC Classification: F03G7/06143 ({Wires})

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