Liquid level detection systems

Details Liquid level detection systems Liquid level detection systems

1973-10-25

1976-01-13

Yusko, Donald J.

Communications: electrical

Systems

Call station

340 59, G08B 2100

Patent

active

039328520

ABSTRACT:
A liquid level detection system has a monitoring device which contacts the liquid when the liquid level is above the predetermined level, and a positive temperature co-efficient resistor mounted in the system at the position where the temperature is to be sensed. The components are connected up in such a way that a warning is given if the liquid level falls or the temperature at a given point rises beyond a predetermined value.

REFERENCES:
patent: 3350710 (1967-10-01), Bridges
patent: 3461447 (1969-08-01), Marbouby
patent: 3644885 (1972-02-01), Radin
patent: 3760352 (1973-09-01), Marcoux
patent: 3781839 (1973-12-01), Bodge
patent: 3792456 (1974-02-01), Hill
patent: 3810143 (1974-05-01), Lawson et al.
patent: 3813629 (1974-05-01), Szeverenyi et al.

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