Self-protecting and conditioning memory metal actuator

Details Self-protecting and conditioning memory metal actuator Self-protecting and conditioning memory metal actuator

1984-12-28

1985-12-17

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With longitudinally expansible solid element

60527, H01H 6108, F01B 2910

Patent

active

045595127

ABSTRACT:
A shape-memory-effect actuator is provided having a shape-memory-alloy spring and a compensator spring. The alloy spring is operatively connected to a concentrically-mounted compensator spring by the use of a protective support housing which surrounds the alloy spring. The actuator includes a shape-memory-alloy spring and a compensator spring that regulates the operating conditions of the shape-memory-alloy spring to a chosen corresponding memory relaxation curve. The memory relaxation curve defines the actuator's operating stress, stroke and life.

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