Tap for a cylinder of gas under pressure

Details Tap for a cylinder of gas under pressure Tap for a cylinder of gas under pressure

1988-03-16

1989-03-28

Walton, George L.

Valves and valve actuation

Fluid actuated or retarded

Fluid and non-fluid actuators

251 635, 2513353, F16K 31143

Patent

active

048156922

ABSTRACT:
The tap for a cylinder of gas under pressure is of the type comprising a body adapted to be fixed on a cylinder head (9) with a gas flow passage (10-13) provided with a valve (12) having a rod (14) slidable through a sealing bellows (17) and connected to a rod (21) of a pneumatic control piston (24) with provision of an opposing spring (28) for biasing the piston to a position for closing the valve (12). Manual means (31-32-33) are provided for axially shifting the piston (24) with an abutment in a position for closing the valve (12). The tap is particularly adapted to the transfer of gases having degrees of toxicity.

REFERENCES:
patent: 1888392 (1932-11-01), Penick et al.
patent: 2431283 (1947-11-01), Spence
patent: 2890014 (1959-06-01), Luoma et al.
patent: 3026081 (1962-03-01), Rossi
patent: 3378224 (1968-04-01), Boyle
patent: 3587634 (1971-06-01), Krause
patent: 3765642 (1973-10-01), Nelson
patent: 3904167 (1975-09-01), Touch et al.
patent: 4316482 (1982-02-01), Pearce et al.

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