Liquid level gauge

Details Liquid level gauge Liquid level gauge

1985-08-13

1986-12-23

Frankfort, Charles

Measuring and testing

Liquid level or depth gauge

With illumination

250577, G01F 2302

Patent

active

046304762

ABSTRACT:
A liquid level gauge including an elongate support member, and, a plurality of optical fibres carried by the support member, said fibres extending on the support member generally lengthwise thereof and generally parallel to each other, said fibres being spaced apart from each other circumferentially of the support member and each fibre being divided at a point along the length of the support member by a gap so arranged that the transmission of the light across the gap from one part of a fibre to the other part thereof is determined by the presence or absence in the gap of the liquid being gauged, the gaps of the fibres being spaced lengthwise of the support member.

REFERENCES:
patent: 1724716 (1929-08-01), Kryzanowsky
patent: 3548657 (1970-12-01), Panerai et al.
patent: 3683196 (1972-08-01), Obenhaus
patent: 3733130 (1973-05-01), Young
patent: 3836253 (1974-09-01), Colvin
patent: 3844171 (1974-10-01), Rodger
patent: 3906241 (1975-09-01), Thompson
patent: 4069838 (1978-01-01), Hansel et al.
patent: 4287756 (1981-09-01), Gallagher
patent: 4425794 (1984-01-01), Duesbury
patent: 4443699 (1984-04-01), Keller

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