Sealing means for a two-stage gas regulator for liquefied-gas co

Details Sealing means for a two-stage gas regulator for liquefied-gas co Sealing means for a two-stage gas regulator for liquefied-gas co

1991-08-21

1992-04-14

Hepperle, Stephen M.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

13750546, 137607, G05D 1602

Patent

active

051038617

ABSTRACT:
A two-stage gas regulator for liquefied-gas containers includes a lower body and an upper cover with a mediate plate disposed therebetween. The lower body has a plurality of inlet ports respectively in fluid communication with a corresponding liquefied-gas container, a first pressure-reduction chamber selectively in fluid communication with one of the inlet ports under control of a switch, a second pressure-reduction chamber in fluid communication with the first pressure-reduction chamber, and an outlet port in fluid communication with the second pressure-reduction chamber and a gas stove. The mediate plate has a first opening and a second opening respectively in alignment with the first and second pressure-reduction chambers. A first membrane is provided in the first pressure-reduction chamber to cover the first opening, and a second membrane is provided in the second pressure-reduction chamber to cover the second opening and for operating a secondary pressure reduction. A flange protrudes from a periphery of the second opening and is received in a receptacle formed in the upper cover. A seal is provided around the flange for preventing fluid in the upper cover from entering the second pressure-reduction chamber.

REFERENCES:
patent: 1930590 (1933-10-01), Ebinger
patent: 4802507 (1989-02-01), Willson

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