Method of injecting a viscous filler material into fiber-receivi

Details Method of injecting a viscous filler material into fiber-receivi Method of injecting a viscous filler material into fiber-receivi

1984-07-19

1985-10-22

Ball, Michael

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

57 7, 156185, 15624412, 264 15, B65H 8102, G02B 514

Patent

active

045486646

ABSTRACT:
A method of injecting a viscous filler material into fiber-receiving grooves in the core (1) of an optical fiber cable, the method comprising the steps of: winding a first tape (5) spirally around the fiber-containing core and leaving gaps between adjacent turns of the said first tape; passing the taped core through a calibrated bore (12) of slightly greater diameter; injecting (11) viscous filler material into the said bore at a pressure chosen in relation to the speed of progress of the core through the bore to ensure that the filler material passes through the gaps between the adjacent turns of the tape to completely fill the volume of the grooves that is unoccupied by the fibers, but without the filler material being able to extend back along the grooves upstream from the point of injection; and winding a second tape spirally around the core containing both the fibers and the filler material in its grooves, said second tape being wound so as to close the gaps between the turns of the first tape.

REFERENCES:
patent: 4205899 (1980-06-01), King et al.
patent: 4354732 (1982-10-01), Arnaud et al.
patent: 4381140 (1983-04-01), Hoek
patent: 4408828 (1983-10-01), Le Noane et al.
patent: 4422889 (1983-12-01), Trezeguet et al.
patent: 4435238 (1984-03-01), Smith
patent: 4474426 (1984-10-01), Yataki

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