Pipes and tubular conduits – With closures and plugs – Inflation stem type
Patent
1985-10-15
1986-08-26
Marcus, Stephen
Pipes and tubular conduits
With closures and plugs
Inflation stem type
137 67, 137 681, 220 89A, 285 3, F16K 1736
Patent
active
046076646
ABSTRACT:
A plug to be temporarily located in a blocking manner within a pipe of a sewage pipe system of a building. The plug is to be installed within the pipe system as it is constructed. The plug is mounted within a flexible, enclosing wall, sleeve. The plug is constructed to be frangible and totally dissolvable within water. A clamping device is mounted exteriorly on the sleeve directly in the area of the plug. When the plug is no longer needed, the clamping device is operated to effect breaking of the plug and then disposing of the plug through the pipe system.
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Carney Joseph H.
Lozano Rudy
Marcus Stephen
Munro Jack C.
Peters Leo James
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