Self-powered electrical meter for display of a liquid-level or t

Details Self-powered electrical meter for display of a liquid-level or t Self-powered electrical meter for display of a liquid-level or t

1978-03-20

1979-08-14

Gorenstein, Charles

Measuring and testing

Liquid level or depth gauge

With illumination

73313, 136 89AC, 362 27, G01F 2300, F21V 508

Patent

active

041641450

ABSTRACT:
The invention contemplates a sealed electrical-meter construction for measuring an electrical quantity such as an electrical resistance, and having particular application to the display of liquid-level where measured resistance is a function of observed liquid level. The meter construction provides a transparent side port at which a solar-cell assembly is exposed to external light, and the voltage output of the cell, after reduction to assure constant-voltage level is used to power the measuring circuit. Fiber-optics elements at the transparent side port convey light to the display face of the meter, so that even a flashlight at nighttime is sufficient to excite the solar-cell assembly and illuminate the display face.

REFERENCES:
patent: 2214595 (1940-09-01), Rights
patent: 2919353 (1959-12-01), Paradise
patent: 3433940 (1969-03-01), Baez et al.
patent: 3678750 (1972-07-01), De Noia et al.
patent: 4017725 (1977-04-01), Roen
Amperex; Uses of Solar Energy; No. Amer. Phillips Co.

Affiliated with

Also associated with

Rating

Self-powered electrical meter for display of a liquid-level or t does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-powered electrical meter for display of a liquid-level or t, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-powered electrical meter for display of a liquid-level or t will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1373698