Shape memory effect actuator and methods of assembling and opera

Details Shape memory effect actuator and methods of assembling and opera Shape memory effect actuator and methods of assembling and opera

1984-04-27

1985-11-12

Ostrager, Allen M.

Power plants

Motor operated by expansion and/or contraction of a unit of...

Mass is a solid

337139, 337140, 337393, 60528, F03G 706

Patent

active

045519749

ABSTRACT:
Disclosed is a shape memory effect actuator. The actuator comprises a biasing means which is normally biased in a first position and a shape memory alloy actuator element cooperatively engaged with the biasing means. The actuator element in a first unactivated condition is biased in the first position by the biasing means. In a second unactivated condition, the actuator element biases and retains the biasing means in a second position. The actuator element in an activated condition biases the biasing means in the second position. Also disclosed is a method of assembling an actuator and a cooperating apparatus and a method of operating the actuator.

REFERENCES:
patent: 3594674 (1971-07-01), Willson
patent: 3594675 (1971-07-01), Willson
patent: 3613732 (1971-10-01), Willson
patent: 3634803 (1972-01-01), Willson
patent: 3707694 (1972-12-01), DuRocher
patent: 3849756 (1974-11-01), Hickling

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