Gas pressure regulator having high and low pressure shut-off mea

Details Gas pressure regulator having high and low pressure shut-off mea Gas pressure regulator having high and low pressure shut-off mea

1976-04-26

1978-01-10

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Safety cut-off requiring reset

137456, 13750546, 137613, 13761414, G05D 1606

Patent

active

040673553

ABSTRACT:
There is disclosed herein a gas pressure regulator having valve means for stopping the flow of gas downstream through the regulator when the pressure of the incoming gas is higher or lower than predetermined acceptable values even though acceptable pressure is subsequently restored, and manually operated means for resetting the valve means after it is determined that the pressure of the gas flowing to the inlet of the regulator has returned to said predetermined acceptable values, provision being made for maintaining a high pressure shut-off valve closed until manually opened even though pressure of gas in the regulator returns to acceptable pressure.

REFERENCES:
patent: 2698026 (1954-12-01), Roberts
patent: 3384110 (1968-05-01), Wiley
patent: 3623506 (1971-11-01), Bonner
patent: 3809108 (1974-05-01), Hughes

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