Pressure-biased, temperature sensor

Details Pressure-biased, temperature sensor Pressure-biased, temperature sensor

1986-05-01

1987-11-10

Rowland, James L.

Communications: electrical

Selective

Having indication or alarm

340611, 200 83C, 200 83D, 73729, 374145, B60Q 100

Patent

active

047060638

ABSTRACT:
A pressure-biased, temperature sensor means utilizing a cooperating pair of aligned bellows operators in a chamber communicating with a fluid to a reference pressure. One of the bellows is responsive to an elevated temperature of a fluid coolant system and the second bellows, which communicates with the fluid coolant system, is responsive to a decrease in fluid pressure. The aligned bellows cooperate to move a switch actuation means to close a switch thereby completing a signal circuit and energizing a signal means.

REFERENCES:
patent: 1815642 (1931-07-01), Zubaty
patent: 1933453 (1933-10-01), Schlaich
patent: 3338099 (1967-08-01), Remick, Jr. et al.
patent: 3439356 (1969-04-01), Kinzer
patent: 4051728 (1977-10-01), Metz
patent: 4652854 (1987-03-01), Kelly
patent: 4663608 (1987-05-01), Kelly
U.S. patent application Ser. Nos. 728,735, 728,736--filed 4-30-85, "A Pressure-Biased Temperature Sensor"--Kelly, R. R.

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