Double pipe connection on plastic pipes

Pipe joints or couplings – With fluid pressure seal – Flexible lip

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Details

2851371, 285305, 285379, 277207A, 277208, F16L 17025

Patent

active

051509261

ABSTRACT:
A double pipe connection is provided having a one-piece gasket (5), which extends sealingly into an intermediate space (1c) of one pipe end (1a) with an internal, transversely extending wall (5c), on one hand, and, also sealingly surrounds a partition (2c) of the other pipe end (2a), on the other hand. The two pipe ends (1a and 2a) are inserted into each other in the axial direction, and are held together with a locking bar (6) in a positive-locking manner. The cross section of the pipe connection may be non-round, e.g., rectangular. Since the pipe ends have no flanges and outer threads, they may be cut to any length, and shaping suitable for injection molding is possible. The double pipe connection is particularly suitable for liquid-bearing pipes on sanitary devices, e.g., drain fittings for wash stands.

REFERENCES:
patent: 2422060 (1947-06-01), Wotring
patent: 3469863 (1969-09-01), Riester et al.
patent: 3583710 (1971-06-01), Burelle
patent: 3693664 (1972-09-01), Schmunk
patent: 3764151 (1973-10-01), Elder
patent: 3948315 (1976-04-01), Powell
patent: 3967643 (1976-07-01), Lutinger
patent: 4102544 (1978-07-01), Goodlaxon
patent: 4865354 (1989-09-01), Allen
patent: 4969666 (1990-11-01), McMillen et al.

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