Fluid handling – Systems – Flow path with serial valves and/or closures
Patent
1993-08-03
1995-02-28
Schwadron, Martin P.
Fluid handling
Systems
Flow path with serial valves and/or closures
13750542, 137549, 251118, 48192, F16K 3112
Patent
active
053928253
ABSTRACT:
A gas pressure regulator for regulating the output pressure of a gas from a pressurized gas cylinder includes a flashback assembly disposed at the gas outlet of the pressure regulator. The flashback assembly includes three primary components as follows: a porous metal flashback arrestor, a retainer, and a check valve sub-assembly. In the preferred embodiment, the porous metal flashback arrestor is mounted on one end of the retainer and the check valve sub-assembly is disposed within the retainer adjacent the metal flashback arrestor. The flashback assembly can be easily removed and replaced. The porous metal flashback arrestor is designed to reduce the possibility of migration of a flashback upstream from the torch and hose into the pressure regulator. The check valve sub-assembly is designed to reduce the possibility of reverse flow of gas upstream from the hose into the pressure regulator.
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Mims Carl W.
Zwicker Roger D.
Lee Kevin L.
Schwadron Martin P.
Victor Equipment Company
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