Leak detector for underground storage tanks

Details Leak detector for underground storage tanks Leak detector for underground storage tanks

1984-08-10

1985-12-31

Levy, Stewart J.

Measuring and testing

With fluid pressure

Leakage

73302, G01M 330

Patent

active

045612919

ABSTRACT:
A portable, self-contained leak detection apparatus is provided which is particularly adapted for detecting a relatively small leak in a large fluid storage tank having a fill pipe. The apparatus comprises an air-tight chamber containing a liquid; a slope tube communicating between the liquid in the chamber and the atmosphere, wherein at least a portion of the slope tube extends along the outer surface of the chamber; a source of compressed gas in gaseous communication with the chamber; and a tube for communicating gas between the chamber and the fill pipe of the storage tank.

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patent: 3209597 (1965-10-01), Fowler
patent: 3473387 (1969-10-01), Meriam
patent: 3834236 (1974-09-01), Durin
patent: 3926057 (1975-12-01), Baker

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