Motor control system using a heated member to provide modulation

Details Motor control system using a heated member to provide modulation Motor control system using a heated member to provide modulation

1975-04-21

1977-02-01

Dobeck, B.

Electricity: motive power systems

Automatic and/or with time-delay means

Responsive to thermal conditions

318208, 318676, 238 68, G05B 1101

Patent

active

040063933

ABSTRACT:
A reversible electric motor is caused to modulate a load in response to an off-on condition responsive device, such as a thermostat. The thermostat completes an electric circuit through an electric heater which in turn supplies heat to a bimetal. The time constant of the bimetal and heater provides a modulating action to a three position motor control switch means which has a center open position. The motor provides a follow-up action through a cam or similar mechanism to rebalance and control an appropriate load, such as a temperature altering medium source.

REFERENCES:
patent: 2783423 (1957-02-01), Streater et al.
patent: 3662241 (1972-05-01), Sweger
patent: 3717803 (1973-02-01), Sweger
patent: 3931560 (1976-01-01), Willson

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