Programmable thermostat

Details Programmable thermostat Programmable thermostat

1979-08-27

1981-05-19

Wayner, William E.

Automatic temperature and humidity regulation

With timing element

Timer other than clock

165 12, F23N 520, G05B 1101

Patent

active

042679664

ABSTRACT:
A programmable thermostat features a memory unit receptive of unit values of temperature desired at different times on different days all individually or in various combinations both as to days and times. An output device signals a temperature control system. As controlled by a clock, the memory unit is addressed during different times of the different days to provide a signal representing the corresponding value desired. Existing temperature level is sensed and compared with each value so as to develop an error signal. In response to that error signal, the output is operated in a direction to reduce the difference between actual and desired temperatures. Numerous details as to layout, construction and circuitry are presented.

REFERENCES:
patent: 3251549 (1966-05-01), Hewitt, Jr. et al.
patent: 4079366 (1978-03-01), Wong
patent: 4176785 (1979-12-01), Allard et al.
patent: 4197992 (1980-04-01), Klebanoff
patent: 4206872 (1980-06-01), Levine

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