Cylinder gas valve

Details Cylinder gas valve Cylinder gas valve

1995-01-12

1995-10-10

Fox, John C.

Valves and valve actuation

With restrictor in parallel to main valve

13762534, F16K 11048

Patent

active

054564450

ABSTRACT:
The invention is to a safety valve for gas cylinders which includes a valve housing 11, a movable valve stem 11a within the valve housing for opening and closing the valve, a restrictor 15 in the valve stem through which gas is dispensed from the gas cylinder, a first shoulder 13 on the valve stem for sealing the gas cylinder when the valve is in a first position, a second shoulder 14 on the valve stem for limiting gas flow from the cylinder through the restrictor when the valve is in a second position, and a reduced section 11d of the valve stem, between said first and second shoulders, through which the gas cylinder is filled when the valve stem is in a position between said first and second positions.

REFERENCES:
patent: 696329 (1902-03-01), Green
patent: 1167959 (1916-01-01), Wiechert
patent: 3219069 (1965-11-01), Kuffer

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