US Patent:
20100320745, Dec 23, 2010
Inventors:
Jerome S. SILAGYI - Mechanicsburg PA, US
Mark DICK - New Cumberland PA, US
Brian CHESTNUT - Mechanicsburg PA, US
Assignee:
LANE ENTERPRSES, INC. - Camp Hill PA
International Classification:
F16L 47/02
Abstract:
A method for coupling corrugated pipe segments is disclosed. The method includes providing first and second thermoplastic corrugated pipe segments arranged to form a fluid flow path and aligning ends of the pipe segments adjacent one another to form a joint. The method further includes providing a coupling assembly having a thermoplastic sheet with a flexible weld rod of a thermoplastic material attached thereto and circumferentially contacting the coupling assembly with the first and second thermoplastic pipe segments. An electrical current is applied to the weld rod to cause the weld rod, sheet and pipe segments to fuse to one another and form a circumferential weld seam on each side of the joint.