Method for installing a tube or a bundle of tubes in an existing

Details Method for installing a tube or a bundle of tubes in an existing Method for installing a tube or a bundle of tubes in an existing

1996-12-18

1999-03-23

Bryant, David P.

Metal working

Method of mechanical manufacture

Assembling or joining

29464, 226 971, 2541344, B23Q 300

Patent

active

058843841

ABSTRACT:
A method for installing a tube or a bundle of tubes in an existing tubular conduit. The tube or tubes are passed into the existing tube by means of a fluid under pressure which is introduced into the existing tube at the inlet end. The tube or tubes can be open or closed at their forward end and are connected to a guide device and/or a pulling device. The existing tube can be open or closed at the end. With the method according to the invention, tubes can installed in an existing tube in a flexible and efficient manner, which tubes can be used for various purposes, for instance as an envelope of telecommunication cables.

REFERENCES:
patent: 3554493 (1971-01-01), Bowden et al.
patent: 4185809 (1980-01-01), Jonnes
patent: 4648744 (1987-03-01), Knapp
patent: 5046674 (1991-09-01), Kolschbach et al.
patent: 5308041 (1994-05-01), Griffioen et al.
patent: 5311954 (1994-05-01), Quintana
Installation Of Optical Cables In Duct, W. Griffioen, pp. 5-12 and 135-139, Cip-Gegevens Koninklijke Bibliotheek, Den Haag, Copyright 1993 by Plumettaz SA.

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