Plumbing test plug

Details Plumbing test plug Plumbing test plug

1986-10-20

1988-04-26

Bryant, III, James E.

Pipes and tubular conduits

With closures and plugs

Inflation stem type

138 96R, 138 90, 137 67, F16K 1736

Patent

active

047397993

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 constructed to be frangible and totally dissolvable within water. A device is mounted on the sleeve directly in the area of the plug. When the plug is no longer needed, the device is operated from the exterior surface of the sleeve to effect breaking of the plug. The plug then passes through the pipe system and eventually dissolves.

REFERENCES:
patent: 3048911 (1962-08-01), Almon
patent: 3338499 (1967-08-01), Gilbert
patent: 3496952 (1970-02-01), Amendola
patent: 4114653 (1978-09-01), Carlin
patent: 4357960 (1982-11-01), Han
patent: 4607664 (1986-08-01), Carney et al.

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