Probe control

Details Probe control Probe control

1977-09-08

1979-08-07

Albritton, C. L.

Electrical resistors

Resistance value responsive to a condition

Ambient temperature

338 22R, H01C 704

Patent

active

041639634

ABSTRACT:
The invention is a detachable probe control for an electrically heated utensil to sense the temperature and control the electric current to the utensil. It uses a hollow thin walled tubular finger that snugly fits in a matching recess for good heat conduction therebetween for temperature control of the utensil in a conventional manner. The particular probe of the invention uses a transducer in the form of a thermistor that is supported in the finger of a unique mounting such that the temperature of the tube walls is readily sensed by the thermistor. Structure is provided to electrically insulate the thermistor while at the same time permitting thermal conductivity to the thermistor whereby the thermistor responds rapidly to finger or probe temperature changes for accurate temperature control of the utensil.

REFERENCES:
patent: 2830166 (1958-04-01), Loomis
patent: 3095498 (1963-06-01), Foster
patent: 3218434 (1965-11-01), Lee et al.
patent: 3295373 (1967-01-01), Boddy
patent: 3440405 (1969-04-01), Fowler

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