Fluid handling – Self-proportioning or correlating systems – Self-proportioning flow systems
Patent
1983-06-20
1985-07-16
Schwadron, Martin P.
Fluid handling
Self-proportioning or correlating systems
Self-proportioning flow systems
137486, 13762415, 1376242, G05D 11035
Patent
active
045290016
ABSTRACT:
A fluid controlled and regulated apparatus that has a continuous input signal of variable pressure, a continuous input supply of constant pressure, and a pulsating output signal of variable pressure, that is particularly adapted for, but not limited to, the introduction of odorants into a gas supply system to aid in detecting leaks therein. The apparatus measures the volume of natural gas flowing in a pipeline and converts that measurement into the input signal which controls a plurality of interconnected fluid piston valves to convert the input supply into the output signal. The output signal drives a reciprocating pump in a chemical injector system, which injects an odorant into the natural gas flowing in a pipeline.
REFERENCES:
patent: 2312201 (1943-02-01), Thompson et al.
patent: 3340896 (1967-09-01), Mon et al.
patent: 4330003 (1982-05-01), D'Alonzo
patent: 4370996 (1983-02-01), Williams
Hepperle Stephen M.
Schwadron Martin P.
Williams Instrument Company, Inc.
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