Method of sealing lateral connections for pipe liners

Details Method of sealing lateral connections for pipe liners Method of sealing lateral connections for pipe liners

1992-01-07

1993-06-29

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Forming structural installations in situ

156293, 1563042, 156 94, 264 36, 264248, 264269, 264314, 264DIG46, 264265, 264229, 219213, 219535, 219547, 425DIG13, B29C 6334, B29C 6534

Patent

active

052231895

ABSTRACT:
The invention provides an apparatus and method by which an opening into a lateral pipe connection for a pipeline into which a liner is being installed may be sealed and protectively lined. The invention features a bushing which is emplaced in the lateral connection by use of an expandable mandrel and a control means. The bushing includes an integral heating element for softening the thermoplastic material from which the bushing is formed. O-rings are positioned between the bushing and the lateral pipe to form a seal.

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German Brochure: "Das Original: Friedrichsfelder Sicherheits-fittings Frialen.RTM.".

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