Combination temperature sensor and switch assembly

Thermal measuring and testing – Temperature measurement – Combined with diverse art device

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374185, 374208, 374163, 337 3, 337107, G01K 114, G01K 1300

Patent

active

048424196

ABSTRACT:
A sensing device for monitoring engine coolant temperature comprises a two leaded thermistor, a single lead thermistor and a single lead bimetal switch in a compact shell. The switch and one thermistor are electrically grounded to the shell. A bimetal leaf is welded to the end of the shell and its free end extends to an adjustable central contact. A spring assembly biases the grounded thermistor against a shelf near the end of the shell. The leaf and the spring assembly are canted at an angle to conserve space. The other thermistor is supported by an insulated closure in one end of the shell.

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patent: 3886912 (1975-06-01), Haglund
patent: 3890588 (1975-06-01), Kanaya et al.
patent: 4037316 (1977-07-01), Stoll
patent: 4299117 (1981-11-01), Andrews et al.
patent: 4306210 (1981-12-01), Saur
patent: 4548780 (1985-10-01), Krohn

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