Fluid handling – Processes – Involving pressure control
Patent
1996-07-02
1999-07-06
Chambers, A. Michael
Fluid handling
Processes
Involving pressure control
137357, 251 57, 73201, 285 30, F16L 322
Patent
active
059186186
ABSTRACT:
A system for turning off the flow of natural gas into a structure is used where the control is used on the exterior of the structure. The control is operated pneumatically and is connected by an air flow conduit to a valve that is located on a natural gas feed line in the interior of a structure.
REFERENCES:
patent: 1887999 (1932-11-01), Fow
patent: 2185068 (1939-12-01), Sholes et al.
patent: 2724968 (1955-11-01), Greene
patent: 2995142 (1961-08-01), Nechine
patent: 3746371 (1973-07-01), Leopld, Jr. et al.
Chambers A. Michael
National Fuel Gas Distribution Corp.
Ralabate James J.
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