Fluid seal apparatus

Details Fluid seal apparatus Fluid seal apparatus

1991-09-19

1992-09-29

Marcus, Stephen

Receptacles

Closures

Floating closure

220216, 220221, B65D 8848

Patent

active

051508052

ABSTRACT:
The apparatus of the invention is applicable to gasholders and comprises a mercury seal, e.g. for a gas holder, which seal provides fluid-tight sealing in an annular space formed between a cylinder and a piston. The mercury is deposited in a reservoir which is inside the piston but which communicates with the annular space outside the piston. In the reservoir, the mercury is subjected to the inside pressure P of the cylinder, and it moves up inside the annular space when the difference between the inside and outside pressure P and Po increases, thereby forming an adaptive fluid seal.

REFERENCES:
patent: 2134167 (1938-10-01), Wise
patent: 2927829 (1960-03-01), Porter
patent: 3125879 (1964-03-01), Porter
patent: 4307601 (1981-12-01), Jackson

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