Actuator

Details Actuator Actuator

1984-12-13

1985-11-12

Ostrager, Allen M.

Power plants

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

Mass is a solid

F01K 706

Patent

active

045519757

ABSTRACT:
An actuator is arranged such that an operation stroke is obtained by a shape memory element made of a shape memory alloy member for recovering a memorized shape when the shape memory alloy member is heated, and that shape recovery control of the shape memory element is performed by Joule heat generated by a current supplied thereto. The shape memory element of this actuator has a mechanism such as conductive layers made of copper-plated layers covering part of the surface of the shape memory alloy. This mechanism decreases an electrical resistance of at least one portion of the element such that it is smaller than the electrical resistance of any other portion thereof. The conductive layers contribute to the partial shape recovery control of the shape memory element with high precision.

REFERENCES:
patent: 4463560 (1984-08-01), Greenleaf et al.
The Nikkan Kogyo Shinbun; Nov. 18, 1983.
The Nikkei Industrial Daily; Nov. 25, 1983.

Affiliated with

Also associated with

Rating

Actuator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Actuator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Actuator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1873260