Tapping of gas from a cartridge

Details Tapping of gas from a cartridge Tapping of gas from a cartridge

1978-03-06

1979-12-11

Schwadron, Martin P.

Fluid handling

With repair, tapping, assembly, or disassembly means

Tapping a pipe, keg, or apertured tank under pressure

222 5, 222 835, 431344, F16K 4300, B67B 724

Patent

active

041778286

ABSTRACT:
In a device for tapping gas from a gas-containing cartridge, there is provided a screw socket into which a threaded end of a tap forming part of a gas-using appliance is screwed, a piston spring-loaded in the direction of the end of the socket and bearing at its end sealing means engaging the cartridge, a perforating needle mounted on the socket and extending through the piston, and stop means to limit the travel of the piston under the action of its spring. The piston is hollow and of larger diameter than the socket which latter extends into a bore in the piston, the piston sliding over and outside the socket. By this means, the risk of seizure of the piston in prolonged use of the device is considerably reduced.

REFERENCES:
patent: 2336708 (1943-12-01), Ward
patent: 2853126 (1958-09-01), Corlet
patent: 2890815 (1959-06-01), Corlet
patent: 3246801 (1966-04-01), De Boer
patent: 3326231 (1967-06-01), Hogg
patent: 3428075 (1969-02-01), Wagner
patent: 3459331 (1969-08-01), Hogg
patent: 3913609 (1975-10-01), Remane
patent: 4018246 (1977-04-01), Langstroth
patent: 4082993 (1978-04-01), Oakes

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