Thermal actuator apparatus

Details Thermal actuator apparatus Thermal actuator apparatus

1982-10-18

1984-08-07

Husar, Stephen F.

Power plants

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

Mass is a solid

60528, 267174, F03G 706

Patent

active

044635605

ABSTRACT:
Thermal actuator apparatus for controlling or adjusting the position of a surface or other object as a function of temperature. The principle of operation is the rate of change, as a function of temperature, in the modulus of rigidity or elasticity of counterbalanced springs of differing materials resulting in a change in equilibrium position. An actuating surface is coupled to the spring system, and its movement with temperature change can be used to change or otherwise control the position of an object.
A simple adjustment is also provided to permit varying thermal coefficients of the actuator (magnitude of the response to temperature change).

REFERENCES:
patent: 423842 (1890-03-01), Wach
patent: 2236158 (1941-03-01), Rockefeller, Jr.
patent: 2974944 (1961-03-01), Terp

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