Pipe joints or couplings – Connector for conduit housing electromagnetic line: – Underground
Patent
1995-10-25
1997-10-21
Melius, Terry Lee
Pipe joints or couplings
Connector for conduit housing electromagnetic line:
Underground
285423, 285915, 29890148, 403346, 403265, 156294, 1563043, F16L 4104
Patent
active
056788657
ABSTRACT:
A tank tee unit is formed from a plurality of standard pvc pipes secured together only by a suitable glue. It includes a main pipe of heavy wall pvc sandwiched between and glued to two heavy wall pvc pipes extending perpendicularly therefrom which are in turn each glued to a standard smaller diameter pvc pipe that passes entirely through the main pipe to form an extremely strong joint. This provides a unit in the form of a cross with outlets on opposite sides of the main pipe and with thick wall branch lines that can be tapped for other side connections. One side outlet can be plugged to provide a strictly tee unit.
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patent: 3497245 (1970-02-01), Metzger
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patent: 3957292 (1976-05-01), Diggs
patent: 4465307 (1984-08-01), de Lange
patent: 4708374 (1987-11-01), Cox
patent: 5181747 (1993-01-01), Jovero
Melius Terry Lee
Merrill Manufacturing Company, Inc.
Shackelford Heather
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