Two wire line voltage thermostat

Details Two wire line voltage thermostat Two wire line voltage thermostat

1987-08-07

1988-10-11

Wayner, William E.

Automatic temperature and humidity regulation

Motors

Electric

165 26, 219510, 236 46R, H05B 102

Patent

active

047765143

ABSTRACT:
A two wire line voltage thermostat has first and second terminals for receiving line voltage power and for connection to a load, a transformer having a current primary winding, a voltage primary winding and a secondary winding, a primary controller connecting the current and voltage primary windings to the terminals, the controller having at least first and second states, the controller in the first state energizing both the current and voltage primary windings and in the second state energizing only the current primary winding, and a temperature responsive circuit connected to the secondary winding for controlling the controller between the first and second states in accordance with sensed temperature such that the load can be energized when the controller is in one of the states and can be deenergized when the controller is in the other of the states.

REFERENCES:
patent: 2958008 (1960-10-01), Bray et al.
patent: 4333605 (1982-06-01), Peters
patent: 4365167 (1982-12-01), Weimer et al.

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