Shape memory actuator system

Details Shape memory actuator system Shape memory actuator system

1998-07-31

2000-03-28

Dayoan, D. Glenn

Ships

Steering mechanism

Rudders

114330, 148402, C22C 4300, B63G 814, B63H 2506

Patent

active

060417285

ABSTRACT:
A control tab on a submarine or the like is angularly displaced by a remote control actuator system featuring a pair of shape-memory cables consist of a superelastic actuating cable connected to the control tab and a force generating thermoelastic cable anchored to the submarine frame. A force transmitting lever interconnects the cables and is selectively locked by a releasable locking mechanism in a position holding the actuating cable fully stretched with the control tab displaced a maximum amount from its neutral position by the displacing force generated in the thermoelastic cable in response to heating thereof by electric current conducted therethrough.

REFERENCES:
patent: 4010455 (1977-03-01), Stange
patent: 5114104 (1992-05-01), Cincotta et al.
patent: 5419788 (1995-05-01), Thoma et al.
patent: 5661259 (1997-08-01), Cipolla

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