Electrical resistors – Resistance value responsive to a condition – Ambient temperature
Patent
1988-07-28
1989-09-12
Griffin, Donald A.
Electrical resistors
Resistance value responsive to a condition
Ambient temperature
324 65P, H01C 700, G01R 2702
Patent
active
048664103
ABSTRACT:
A thermal sensor assembly is shown as having first and second body sections with the first being a probe-like portion for introduction into a medium the temperature of which is to be monitored; first and second thermistors, electrically isolated from each other are situated within the probe-like portion; the first thermistor is in series with and between two terminals which are connectable to associated circuitry external of the sensor assembly; the second thermistor electrically connected to a third terminal is effective to complete a circuit to ground potential through the probe-like portion.
REFERENCES:
patent: 3890588 (1975-06-01), Kanaya et al.
patent: 4208786 (1980-06-01), Merchant et al.
patent: 4223293 (1980-09-01), Springer et al.
Deppe Gary L.
Garrison Richard E.
Griffin Donald A.
Hi-Stat Manufacturing Company, Inc.
Romanski Lon H.
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