Gas pressure regulator having side-drafted throttling means

Details Gas pressure regulator having side-drafted throttling means Gas pressure regulator having side-drafted throttling means

1989-07-24

1990-12-04

Hepperle, Stephen M.

Fluid handling

Line condition change responsive valves

Safety cut-off requiring reset

13750546, F16K 1724, G05D 1606

Patent

active

049746308

ABSTRACT:
A gas pressure regulator includes a throttle valve provided between a gas inlet passage and a pressure sensing chamber pertaining to a gas exit passage, the throttle valve having a sealing plug comprised of a needle and a base float fluidically drafted for closing a truncated cone hole of the throttle valve when subject to a surge gas flow of great volume rate due to a gas leakage from a downstream gas line for safety reason, and upon a simple restoring of the plug for re-opening the throttle valve, a gas stream can be continuously supplied when just opening a valve of a gas source.

REFERENCES:
patent: 4067355 (1978-01-01), St. Clair
patent: 4195656 (1980-04-01), Kanerva et al.
patent: 4257448 (1981-03-01), Shiu et al.
patent: 4373548 (1983-02-01), Chou
patent: 4817664 (1989-04-01), Chang

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