One shot spring activated motor

Details One shot spring activated motor One shot spring activated motor

1983-11-28

1985-01-15

Beha, Jr., William H.

Electrical generator or motor structure

Dynamoelectric

Rotary

200 6108, 310273, H02K 700, H01H 2900

Patent

active

044940246

ABSTRACT:
A motor shaft is inserted through the center of a first and second coil spring. A first end of each spring is attached to the motor shaft and the second end is wound against its respective spring force and tied to the motor housing by a respective heat severable cord which is wound about a respective heater element. The first spring places a clockwise torque on the shaft and the second spring places a counterclockwise torque on the shaft. Each heater element may be selectively heated as by flow of electrical current, to heat a selected one element and heat sever its respective cord to release the torque on the second end of a respective one spring to rotate the shaft under the torque of the other spring.

REFERENCES:
patent: 2440861 (1948-05-01), Lamb
patent: 3567880 (1971-03-01), Palmer et al.
patent: 4240300 (1980-12-01), Tanaka
patent: 4384185 (1983-05-01), Hall et al.

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