Pipe belling apparatus and method

Details Pipe belling apparatus and method Pipe belling apparatus and method

2005-09-20

2005-09-20

Nguyen, Chau (Department: 2661)

Multiplex communications

Channel assignment techniques

Polling

C156S189000

Reexamination Certificate

active

06947443

ABSTRACT:
An improved pipe belling apparatus and method are shown in which a spiral strip of thermoplastic material is extruded and wrapped spirally about a mandrel and integral gasket. The heated material is allowed to cool and the connection thus formed is stripped from the mandrel. The gasket is retained within a groove which is simultaneously formed of the thermoplastic extrusion.

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patent: 5988695 (1999-11-01), Corbett, Jr.

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