Level sensing device

Details Level sensing device Level sensing device

1985-12-06

1987-06-09

Yasich, Daniel M.

Measuring and testing

Liquid level or depth gauge

Sight glass

73304R, G01F 2302, G01F 2324

Patent

active

046711104

ABSTRACT:
The invention provides a level sensing device for sensing the level of an electrically conductive liquid in a vessel or container, the level being determined both by visual observation of the level of the liguid in a sight glass which is in communication with the interior of the vessel, and by detecting the level of the liquid in the sight glass by the use of an electrically conductive layer on at least one of the interior and exterior surfaces of the sight glass. The device provides a warning alarm when the level of the liquid drops below or exceeds a predetermined low or high level in the vessel.

REFERENCES:
patent: 2743340 (1956-04-01), Zoltanski
patent: 3190122 (1965-06-01), Edwards
patent: 3955039 (1976-05-01), Roschy et al.
patent: 4002996 (1977-01-01), Klenanoff
patent: 4039997 (1977-08-01), Huang et al.

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