Tank tightness test apparatus

Details Tank tightness test apparatus Tank tightness test apparatus

1978-05-03

1979-05-15

Ruehl, Charles A.

Measuring and testing

With fluid pressure

Leakage

G01M 326

Patent

active

041540913

ABSTRACT:
In a tank system tightness tester of the general type disclosed in U.S. Pat. No. 3,580,555, a vertically elongated, flexible and resilient, annular diaphragm is provided for sealing against the fill pipe going down into the underground storage tank. The diaphragm is clamped to the outside of an adapter sleeve. The diaphragm is radially expandable by air pressure supplied to the space between this adapter sleeve and a concentric inner sleeve. A plate assembly at ground level suspends these sleeves and a suction tube inside the fill pipe. This plate assembly also supports an air supply valve, an air vent valve and an air pressure gauge for the sealing diaphragm, quick-disconnect coupling members for tank fluid recirculating and hydraulic pressure control parts of the apparatus, and an electrical connector for the temperature measuring part of the apparatus.

REFERENCES:
patent: 2232199 (1941-02-01), Bald
patent: 2908299 (1959-10-01), Gosselin
patent: 3580055 (1971-05-01), White
patent: 3726319 (1973-04-01), Patterson

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