Socket joint for plastic pipes

Details Socket joint for plastic pipes Socket joint for plastic pipes

1996-05-01

1997-08-05

Arola, Dave W.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277209, 285110, 285345, 285374, 285423, 285910, F16L 17025

Patent

active

056534523

ABSTRACT:
The invention relates to a socket joint for plastic pipes, whereupon a spigot end (1a) of one (1) of the pipes to be connected is inserted in an expanded section (2a) of a socket (2), and an intermediate space (3) situated between the spigot end and the expanded section comprises a housing sealing unit (4) that extends along a considerable part of the length of said intermediate space and that comprises several circular flexible lip seals (6) on its outer and inner circumference. The outer and inner circumference of the sealing unit (4) also comprise several circular support seals (7) which have a substantially smaller compressibility especially in the radial direction than the lip seals (6).

REFERENCES:
patent: 2841429 (1958-07-01), McCuistion
patent: 3052478 (1962-09-01), Horvereid
patent: 4293138 (1981-10-01), Swantee

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