Temperature control switch

Details Temperature control switch Temperature control switch

1985-05-17

1987-05-12

Marcus, Stephen

Electricity: circuit makers and breakers

Electric switch details

Indicators

200340, 200 5E, 340407, 116205, 116DIG17, 165 111, 236 94, H01H 900

Patent

active

046652914

ABSTRACT:
Control knob for temperature control switch is provided with means for heating or/and cooling the same, whereby, by feeling of the temperature of the control knob with a finger tip, it is possible to instantaneously identify what the function of the control knob which the finger has toughed is, without turning the sight to a switch, and, even when the shapes and way of disposition of control knobs are identical with one another.

REFERENCES:
patent: 2581207 (1952-01-01), Sambleson
patent: 2780801 (1957-02-01), Tyler
patent: 3053337 (1962-09-01), Prohaska et al.
patent: 3504140 (1970-03-01), Atkinson
patent: 4435091 (1984-03-01), Nedreski
patent: 4589593 (1986-05-01), Ishikawa et al.

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