Thermal timer, thermal actuator, control system and circuit

Details Thermal timer, thermal actuator, control system and circuit Thermal timer, thermal actuator, control system and circuit

1974-06-18

1976-06-01

Envall, Jr., R. N.

Electricity: electrothermally or thermally actuated switches

Thermally actuated switches

With mechanical timing means

337100, 337107, H01H 3702

Patent

active

039613003

ABSTRACT:
A thermal timer has a pair of means responsive to oppositely acting thermal differentials established therebetween for pivotally moving generally in opposite directions through a predetermined time cycle.
A thermal control system, and circuit for operating an electrical device, and a thermal actuator for a thermal timer are also disclosed.

REFERENCES:
patent: 1684709 (1928-09-01), Lowenstein
patent: 2896051 (1959-07-01), Taylor

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