Pressurized vessel having closure safety means

Details Pressurized vessel having closure safety means Pressurized vessel having closure safety means

1982-02-12

1983-05-24

Hall, George T.

Receptacles

Closures

Having means for securing or retaining closure in its closed...

220256, 220284, B65D 4500

Patent

active

043846556

ABSTRACT:
A vessel includes a body having a chamber normally containing pressurized gas and enclosed by a removable closure provided with a gas charging valve. Inadvertent disassembly of the closure when the chamber contains pressurized gas is precluded by a planar cover plate captively retained by the charging valve and normally masking tool-receiving members on the closure. Removal of the valve/cover plate unit initially releases a resilient seal carried by the inner face of the valve juxtaposed the outer face of the closure and subsequently progressively exposes to the atmosphere a gas bleeding passage formed in the attachment stem of the valve to gradually release all pressurized gas from the vessel chamber. The closure is only accessible for disassembly following complete removal of the unitary valve and cover plate after which all gas under pressure in the chamber has been relieved.

REFERENCES:
patent: 4122969 (1978-10-01), Hughey
patent: 4343325 (1982-08-01), Fallon

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