End plug assembly for sewer pipe

Details End plug assembly for sewer pipe End plug assembly for sewer pipe

1980-04-14

1981-12-01

Bryant, III, James E.

Pipes and tubular conduits

With closures and plugs

Inflation stem type

138 96R, 220237, F16L 5510

Patent

active

043031013

ABSTRACT:
A reusable plug assembly to seal the end of a sewer pipe against gas and water leakage used when the sewer pipe has no useable threads or is not threaded at an open end and in which the plug assembly consists of an overlying end seal bearing against the end of the sewer pipe and having a sleeve extending into the sewer pipe, the sleeve having a flared end portion and a wedge member to expand the flared end portion into a line sealing engagement with the adjacent internal wall of the sewer pipe and an external member simultaneously compressing the end seal against the end of the pipe and drawing the wedge member into the flared end portion of the sleeve to expand it into sealing engagement with the pipe, and the plug assembly being sealed against any leakage between its parts.

REFERENCES:
patent: 1674998 (1928-06-01), Spang
patent: 2479862 (1949-08-01), Payne
patent: 2773619 (1956-12-01), Moeller
patent: 3074579 (1963-01-01), Miller
patent: 3291156 (1966-12-01), Corsano
patent: 3494504 (1970-02-01), Jackson
patent: 3749131 (1973-07-01), Burger
patent: 3901167 (1975-08-01), Reese
patent: 4170247 (1979-10-01), Bates et al.

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