Gas pressure regulator for saving resetting operation

Details Gas pressure regulator for saving resetting operation Gas pressure regulator for saving resetting operation

1989-07-19

1990-12-04

Hepperle, Stephen M.

Fluid handling

Line condition change responsive valves

Safety cut-off requiring reset

13750546, F16K 1734, G05D 1606

Patent

active

049746294

ABSTRACT:
A gas pressure regulator includes a throttle valve provided between a gas inlet passage having an orifice formed therein and a pressure sensing chamber pertaining to a gas exit passage, the throttle valve having a sealing plug fluidically drafted upwardly 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 gravitationally dropping by a gravity of the plug for re-opening the throttle valve for continuous gas supply 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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