Pressure regulator

Details Pressure regulator Pressure regulator

1991-03-21

1992-08-04

Hepperle, Stephen M.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

13750525, 137557, F16K 1606

Patent

active

051350238

ABSTRACT:
A pressure regulator is described including an integral indicator which signals the near depletion of gas in a compressed gas cylinder to which the regulator is connected. The indicator remains extended as long as an adequate supply of gas remains in the cylinder. Upon the near depletion of the gas, the indicator withdraws into the regulator body to warn of the near depletion of gas.

REFERENCES:
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patent: 3139902 (1964-07-01), Thomas
patent: 3203246 (1965-08-01), Horwitt et al.
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patent: 3400735 (1968-09-01), Favors et al.
patent: 4020863 (1977-05-01), Fabish
patent: 4181139 (1980-01-01), Martini
patent: 4203467 (1980-05-01), Cardi
patent: 4622857 (1986-11-01), Nelson
patent: 4840195 (1989-06-01), Zabrenski
patent: 4887638 (1989-12-01), Hellquist et al.

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