Digital thermostat with single rotary encoder switch for establi

Details Digital thermostat with single rotary encoder switch for establi Digital thermostat with single rotary encoder switch for establi

1993-01-25

1993-07-06

Tanner, Harry B.

Automatic temperature and humidity regulation

Thermostatic

With indicator or alarm

165 26, D10 50, 116309, G05D 2300

Patent

active

052246493

ABSTRACT:
A digital thermostat includes a microcontroller and a single rotary encoder switch having an adjusting shaft and a knob connected to the shaft. The shaft of the switch is rotatable by the knob to a plurality of discrete angular positions, each of which enables the switch to provide a unique signal to the microcontroller. Each unique signal is interpreted by the microcontroller so as to establish a desired set point temperature. Each discrete angular switch position also effects a visual display, through an opening in the thermostat cover, of the desired set point temperature.

REFERENCES:
patent: 3366751 (1968-01-01), Capellari
patent: 3942718 (1976-03-01), Palmieri
patent: 4163879 (1979-08-01), Mayer et al.
patent: 4314666 (1982-02-01), Schotten
patent: 4364428 (1982-12-01), Ohtsu et al.
patent: 4568927 (1986-02-01), Fowler
patent: 4669654 (1987-06-01), Levine et al.
patent: 4841738 (1989-06-01), Katsuki et al.
patent: 4898230 (1990-02-01), Tsuchiyama et al.

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