Method for the preparation of plastic lined pipe

Details Method for the preparation of plastic lined pipe Method for the preparation of plastic lined pipe

1973-12-07

1976-05-25

White, Robert F.

Plastic and nonmetallic article shaping or treating: processes

Reactive gas or vapor treatment of work

Work is organic material

264249, 264323, B29C 2720

Patent

active

039594246

ABSTRACT:
Plastic lined pipe and fittings are prepared by forming a liner of a plastic material having a diameter greater than the inside diameter of the pipe or fitting to be lined, reducing the diameter of the liner by hydrostatically swaging the liner and inserting the swaged liner into the pipe or fitting and permitting the plastic memory of the liner to cause expansion and form an interference fit of the liner with the pipe.

REFERENCES:
patent: 3462825 (1969-08-01), Pope et al.
patent: 3507941 (1970-04-01), Kies et al.
patent: 3560295 (1971-02-01), Kimbrell et al.
patent: 3767757 (1973-10-01), Vroom et al.
patent: 3784660 (1974-01-01), Hardy

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