Plug for temporarily sealing the end of a pipe

Details Plug for temporarily sealing the end of a pipe Plug for temporarily sealing the end of a pipe

1992-01-14

1994-04-19

Bryant, III, James E.

Pipes and tubular conduits

With closures and plugs

Inflation stem type

137800, 220234, F16L 5700

Patent

active

053037413

ABSTRACT:
A temporary pipe plug comprised of a lightweight main body encircled by an outer sealing surface. The outer sealing surface has a rounded edge which contacts the gasket on the bell end of a sewer or water pipe. A boss is affixed to the main body which provides attachment of a chain to the plug. The chain is used for easy removal of the plug.

REFERENCES:
patent: 922275 (1909-05-01), Gleason et al.
patent: 1837345 (1931-12-01), Thomas
patent: 2763293 (1956-09-01), Kruck
patent: 3039494 (1962-06-01), Bradley
patent: 3065767 (1962-11-01), Topf
patent: 3451583 (1969-06-01), Lee
patent: 3780773 (1973-12-01), Haugen
patent: 3893487 (1975-07-01), Engelking
patent: 4432394 (1984-02-01), Martin
patent: 4948550 (1990-08-01), Worthy

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