Safety cartridge for compressed or liquefied gas

Details Safety cartridge for compressed or liquefied gas Safety cartridge for compressed or liquefied gas

1991-01-31

1991-11-12

Cohan, Alan

Fluid handling

Convertible

Reversible check

1375992, 13761417, 141 18, B65B 104

Patent

active

050639609

ABSTRACT:
The cartridge has an actuating element (20) designed in the form of a non-return valve, with a widened base (22) forming the closing member and a front part equipped with a peripheral gasket (58) which, in the open position and closed position of the non-return valve, is seated sealingly in a narrowed portion (18a) of a chamber (18). To make it possible to disconnect the service circuit without the risk of an escape of the gases, the said element (20) is displaceable from the closing position towards the opening position of the non-return valve counter to the action of the closing spring (60) as a result of the connection of a first type of connector (70) to the said connecting pipe, and is displaceable beyond the said opening position towards a position of filling and short-circuiting of a residual-pressure valve (48) in which the said element (20) and its peripheral gasket (58) are located in a widened portion (18b) of the said chamber (18), as a result of the connecting of a second type of connector (74) to the said connecting pipe (14).

REFERENCES:
patent: 3158297 (1964-11-01), Ferry
patent: 4703774 (1987-11-01), Seehausen
patent: 4760865 (1988-08-01), Rilett

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