Storm drainage conduit plug

Details Storm drainage conduit plug Storm drainage conduit plug

1991-08-27

1993-07-06

Bryant, III, James E.

Pipes and tubular conduits

With closures and plugs

Inflation stem type

4295, 52 20, 404 25, F16L 5510

Patent

active

052245144

ABSTRACT:
A temporary reusable storm drainage conduit plug sized to slidably fit into the end opening of a length of tubular conduit situated within the ground. The device in use prevents dirt and debris from entering the open end of conduit already in place during storm drainage construction and is easily manually removable when the construction is ready to proceed further.

REFERENCES:
patent: 711465 (1902-10-01), Bradshaw
patent: 754801 (1904-03-01), Pompoy
patent: 950270 (1910-02-01), Andrews
patent: 951192 (1910-03-01), Massey
patent: 1914409 (1933-06-01), Draper
patent: 2446661 (1948-08-01), Murdock
patent: 2543839 (1951-03-01), Faris
patent: 4180094 (1979-12-01), Virgh
patent: 4556097 (1985-02-01), Burmeister
patent: 4615460 (1986-10-01), Buccellato et al.
patent: 4726707 (1988-02-01), Newton
patent: 4747453 (1988-05-01), Howard

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