Fluid level sensing apparatus

Details Fluid level sensing apparatus Fluid level sensing apparatus

1996-04-16

1997-09-16

Hofsass, Jeffery

Communications: electrical

Condition responsive indicating system

Specific condition

73304R, G08B 2100

Patent

active

056685360

ABSTRACT:
An apparatus for sensing the level of fluid, including a two electrode device being disposed in the fluid and a microprocessor. The microprocessor being connected to the two electrode device and delivering alternating current thereto. The microprocessor reads the voltage across the device, compares the voltage to a predetermined voltage level, and produces a warning signal in response to the fluid level being below a predetermined fluid level.

REFERENCES:
patent: 3790936 (1974-02-01), Knoll
patent: 4110740 (1978-08-01), Akita et al.
patent: 4591839 (1986-05-01), Charboneau et al.
patent: 4628302 (1986-12-01), Barr et al.
patent: 5083460 (1992-01-01), Kumada et al.
patent: 5210769 (1993-05-01), Seidel et al.

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