Pipes with integral sockets

Details Pipes with integral sockets Pipes with integral sockets

1995-03-06

1996-06-18

Scherbel, David

Pipes and tubular conduits

Combined

With end structure

138177, 264532, F16L 912

Patent

active

055268471

ABSTRACT:
A circumferentially or biaxially oriented plastics pipe comprising a body with an integral socket at one end thereof The socket has a wall of lesser axial draw than the body of the pipe.

REFERENCES:
patent: 3594864 (1971-07-01), Gilbert
patent: 4276010 (1981-06-01), Shartzer
patent: 4362187 (1982-12-01), Harris et al.
patent: 4363619 (1982-12-01), Farrell
patent: 4447199 (1984-05-01), Reed et al.
patent: 4499045 (1985-02-01), Obsomer
patent: 4987961 (1991-01-01), McNeely, Jr.
Opposition lodged by Wavin B.V. corresponding to EPO Patent No. 0404557; May 23, 1995.
"Kunststoff-Extrudertechnik"; Von Dr.-Ing. Gerhard Schenkel; Carl Hanser Verlag Munchen; 1963; pp. 347-350.

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