PLASTIC PIPE JOINT AND METHOD AND ASSEMBLY FOR MAKING SAME

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 apparatus for making this bell end with its thickened cross-sectional configuration and with the sealing gasket locked in place are a...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: FRENCH, DAVID W
Format: Patent
Sprache:eng ; fre
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung: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 apparatus for making this bell end with its thickened cross-sectional configuration and with the sealing gasket locked in place are also disclosed herein. In accordance with the present invention, the bell end is formed, its cross-sectional configuration is thickened, and a circumferential sealing gasket is locked in place, all at approximately the same time and using one overall apparatus. Thus in contrast with the prior art, the end of the pipe is not pre-thickened or post-thickened before the bell is formed thereon. 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 apparatus for making this bell end with its thickened cross-sectional configuration and with the sealing gasket locked in place are also disclosed herein. In accordance with the present invention, the bell end is formed, its cross-sectional configuration is thickened, and a circumferential sealing gasket is locked in place, all at approximately the same time and using one overall apparatus. Thus in contrast with the prior art, the end of the pipe is not pre-thickened or post-thickened before the bell is formed thereon.