Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent
1987-11-25
1989-09-26
Arnold, Bruce Y.
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
137315, F16L 5518
Patent
active
048692816
ABSTRACT:
Process and apparatus for plugging or plugging and servering gas service lines may be deployed from a building without requiring access to either the utility service main or main tee connections. The processes are intended to be undertaken while gas is being supplied to the service. The apparatus also allows service lines to be relined under these conditions without requiring direct access to either the utility service main or main tee connections.
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Brigando Ronald P.
Rockower Gerald
Arnold Bruce Y.
Brooklyn Union Gas Company
Ryan J. P.
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