Assembly for forming the bell of a bell spigot joint

Details Assembly for forming the bell of a bell spigot joint Assembly for forming the bell of a bell spigot joint

1977-08-22

1979-10-09

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

Rod or tubular preform

425DIG218, B29C 1700

Patent

active

041704487

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), Stansburg
patent: 3823216 (1974-07-01), Petzetakis
patent: 3849052 (1974-11-01), Gordon
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.

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