Ullage measuring device

Details Ullage measuring device Ullage measuring device

1976-09-29

1978-10-31

Caldwell, Sr., John W.

Communications: electrical

Condition responsive indicating system

Specific condition

331265, 174112, 174115, 174117F, 242 848, 242100, 361212, G08B 2100, G01B 310, B65H 7530

Patent

active

041237536

ABSTRACT:
An ullage measuring device and an accurate method of using an ullage tape to find the surface of a liquid in a tank without visual sighting. The ullage device includes a composite tape formed of a tape from which readings of ullage may be obtained and electrical conductors to activate circuitry for rendering a crystal operative to transmit sonic energy to another crystal adapted to receive sonic energy and to activate one of the conductors to provide an audible indication at a point remote from the surface of the liquid when the effective end of the composite tape has reached the surface of the liquid.

REFERENCES:
patent: 871124 (1907-11-01), Knoblock
patent: 896765 (1908-08-01), Sears
patent: 1123642 (1915-01-01), Wright
patent: 1443357 (1923-01-01), Gardner
patent: 1497178 (1924-06-01), Lorenz
patent: 1498960 (1924-06-01), Gardner
patent: 2172907 (1939-09-01), Humphrey
patent: 2997878 (1961-08-01), Graham
patent: 3311983 (1967-04-01), Green
patent: 3944994 (1976-03-01), Fanshawe

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