Device for monitoring hydrocarbons in groundwater

Details Device for monitoring hydrocarbons in groundwater Device for monitoring hydrocarbons in groundwater

1987-02-26

1989-04-04

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

340622, 73304R, 73 492, G08B 2100

Patent

active

048189766

ABSTRACT:
An apparatus for sensing the leakage of hydrocarbons from underground storage tanks having a hydrocarbon vapor sensor, a liquid sensor to determine the level of the groundwater and the positioning of the vapor sensor; and, alarm and trouble circuitry to indicate the presence of a hydrocarbon leak or a malfunctioning circuit. The apparatus also contains a timer mechanism to accurately determine whether or not the hydrocarbon has actually leaked from an underground storage tank or is present in the test area due to natural gases or above-ground spills.

REFERENCES:
patent: 3939470 (1976-02-01), Arai et al.
patent: 4517161 (1985-05-01), Gravina et al.
patent: 4561292 (1985-12-01), Pugnole et al.
patent: 4609913 (1986-09-01), Arbogast et al.
patent: 4618855 (1986-10-01), Harding et al.
patent: 4656464 (1987-04-01), Cliffgard
patent: 4663614 (1987-05-01), Rauchwerger

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