Method for making service connections to polyethylene pipe

Details Method for making service connections to polyethylene pipe Method for making service connections to polyethylene pipe

1993-03-26

1994-11-15

Reese, Randolph A.

Hydraulic and earth engineering

Miscellaneous

405156, 405154, 138 97, 285 21, F16L 1028, F16L 5518

Patent

active

053642074

ABSTRACT:
The present invention is directed to a method for making service connection to polyethylene replacement sewer pipe. Specifically, the method involves the steps of (1) locating the service; (2) excavating an opening less than two feet in diameter from the surface to the polyethylene replacement pipe at the service; (3) introducing a fusing apparatus on top of the polyethylene pipe and fusing a stack to the polyethylene pipe; and (4) drilling a opening into the polyethylene pipe through the fused stack. Before drilling the opening into the polyethylene pipe, the stack may be tested to make certain that there are no leaks in the fusing step and that the stack is securely connected to the polyethylene pipe.

REFERENCES:
patent: 3907625 (1975-09-01), Vogelsanger
patent: 4357961 (1982-11-01), Chick
patent: 4455482 (1984-06-01), Grandclement
patent: 4519124 (1985-05-01), Burghardt
patent: 4869619 (1989-09-01), Akesaka
patent: 4894521 (1990-01-01), Evans
patent: 5076730 (1991-12-01), Bergey

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