Leak protected vessel

Details Leak protected vessel Leak protected vessel

1989-08-11

1992-01-21

Williams, Hezron E.

Measuring and testing

With fluid pressure

Leakage

73 40, 340605, G01M 332

Patent

active

050818643

ABSTRACT:
A double-walled vessel for containing fluid, the vessel having an annular space between the walls wherein a compressed gas at a pressure higher than any pressure in the inner vessel is maintained, the vessel including a monitoring device to sense the escape of gas from the annular space such as decrease in its pressure or flow of gas from a replenishing source and to sense the presence of the compressed gas in the inner vessel such as increase in pressure, sensing the composition of the compressed gas within the inner vessel or sensing an increase in flow through a vent, whereby leakage through either the inner vessel wall or the surrounding outer wall is detected and the escape of contained fluid from the inner vessel is prevented.

REFERENCES:
patent: 3848765 (1974-11-01), Durkop
patent: 4696186 (1987-09-01), Sharp
patent: 4805445 (1989-02-01), Grappe
patent: 4836710 (1989-06-01), Sawada

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