Liquid level sensing circuitry

Details Liquid level sensing circuitry Liquid level sensing circuitry

1980-09-11

1982-10-26

Caldwell, Sr., John W.

Communications: electrical

Condition responsive indicating system

Specific condition

340 59, G08B 2100

Patent

active

043564801

ABSTRACT:
Liquid level sensing circuitry provides storage of a signal upon operation of a switch. The signal stored is dependent on whether a probe is in contact with the liquid sensed. Provision is made to prevent storage of a different signal for a period of time should the switch be operated more than once during such period of time. A different discernible indication is produced for each stored signal.

REFERENCES:
patent: 3978464 (1976-08-01), Miesterfeld

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