Storm drainage conduit plug

Details Storm drainage conduit plug Storm drainage conduit plug

1993-03-15

1994-05-31

Bryant, III, James E.

Pipes and tubular conduits

With closures and plugs

Inflation stem type

F16L 5510

Patent

active

053160452

ABSTRACT:
A temporary reusable storm drainage conduit plug sized to slidably fit into either exposed end (male or female end) 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 removable when the construction is ready to proceed further.

REFERENCES:
patent: 798507 (1905-08-01), Hally
patent: 824896 (1906-07-01), Willis
patent: 1137466 (1915-04-01), Dillon
patent: 1435008 (1922-11-01), Joy
patent: 1491325 (1924-04-01), Thomas
patent: 2506362 (1950-05-01), Hofmann
patent: 2709046 (1955-05-01), Hyde
patent: 3525366 (1970-08-01), De Frees
patent: 3675685 (1972-07-01), Potter
patent: 3780773 (1973-12-01), Haugen
patent: 3807457 (1974-04-01), Logsdon

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