Battery operated thermostat timer with battery charging circuits

Details Battery operated thermostat timer with battery charging circuits Battery operated thermostat timer with battery charging circuits

1978-08-14

1979-12-11

Wayner, William E.

Automatic temperature and humidity regulation

With timing element

Timer other than clock

307 66, H02J 700, F23N 520

Patent

active

041779231

ABSTRACT:
A space thermostat for switching electrically operated space conditioning apparatus includes an electrically operated timer functioning to periodically change the temperature "set point" of the thermostat, a small rechargeable storage battery for operating the timer, and circuit means all contained within the thermostat casing for charging the battery when the thermostat contacts are closed. In a second form, circuit means all contained within the thermostat casing is provided for continuously charging the battery when the thermostat contacts are open or closed.

REFERENCES:
patent: 3214670 (1965-10-01), Schaf
patent: 3620448 (1971-11-01), Nelson
patent: 3948441 (1976-04-01), Perkins et al.
patent: 3989928 (1976-11-01), Scragg et al.
patent: 4054245 (1977-10-01), Bennestsen et al.

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