Debris cap

Details Debris cap Debris cap

1996-10-29

1998-07-14

Scherbel, David

Pipes and tubular conduits

With closures and plugs

Inflation stem type

138 894, F16L 5511

Patent

active

057789347

ABSTRACT:
The debris cap includes a handle activated retainer mechanism for retaining the cap in a pipe in which it is installed. The retainer mechanism includes an over-center connecting rod system for keeping the retaining mechanism in its retaining position. A barrel lock is employed to prevent unauthorized removal of the cap. A resilient flange on the body of the cap frictionally engages the wall of the pipe to support the cap as the retainer mechanism is manipulated.

REFERENCES:
patent: 854986 (1907-05-01), DeWeese
patent: 3820682 (1974-06-01), Davella
patent: 4519519 (1985-05-01), Meuschke et al.
patent: 4921123 (1990-05-01), Mizioch
patent: 5029614 (1991-07-01), Lara et al.
patent: 5171514 (1992-12-01), Veronesi et al.
patent: 5293905 (1994-03-01), Friedrich
patent: 5439130 (1995-08-01), Waugh
patent: 5522432 (1996-06-01), Radant et al.

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