Fluid level monitor

Details Fluid level monitor Fluid level monitor

1993-08-30

1995-06-27

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

Specific condition

340620, 324694, 73304R, G08B 2100

Patent

active

054283485

ABSTRACT:
A battery-operated fluid level monitor has a novel circuit and sensor for providing signals, both audible and visible, for indicating low fluid level, low battery voltage, and proper fluid level. The monitor is useful as a device that can inform when a Christmas tree needs water. The monitor can also be economically fabricated, and this is important for mass production applications, such as a Christmas tree monitor.

REFERENCES:
patent: 4216468 (1980-08-01), Kaufmann
patent: 4623878 (1986-11-01), Schoenwetter
patent: 4796017 (1989-01-01), Merenda
"Liquid Level Sensor", FIG. 32-3, pp. 186, Encyclopedia of Electrical Circuits, Graf and Sheets, 1992 (Elector).

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