Plastic pipe joint and method and assembly for making same

Details Plastic pipe joint and method and assembly for making same Plastic pipe joint and method and assembly for making same

1979-01-29

1980-11-04

Derrington, James H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264296, 264322, B29D 2300

Patent

active

042319838

ABSTRACT:
A bell and spigot pipe joint including a bell end having a locked in sealing gasket and a thickened cross-sectional configuration is disclosed herein. A method and an assembly for making the bell end with its thickened cross-sectional configuration and with the sealing gasket locked in place are also disclosed herein.

REFERENCES:
patent: 3432887 (1969-03-01), Poux et al.
patent: 3749543 (1973-07-01), Stansbury
patent: 3823216 (1974-07-01), Petzetakis
patent: 3836622 (1974-09-01), Sporre
patent: 3849052 (1974-11-01), Gordon
patent: 3956817 (1976-05-01), Blumenkranz
patent: 3966385 (1976-06-01), Spears
patent: 4030872 (1977-06-01), Parmann
patent: 4059379 (1977-11-01), Korff et al.
patent: 4065243 (1977-12-01), Acda et al.
patent: 4150087 (1979-04-01), de Putter

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