B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/103, 18/575
B29C 59/02 (2006.01) B29C 59/04 (2006.01) B29C 67/00 (2006.01) B29C 70/82 (2006.01) G02B 6/44 (2006.01) B29C 47/00 (2006.01)
Patent
CA 1190366
ABSTRACT OF THE DISCLOSURE A method and apparatus for forming grooves in a re- inforced, thermoplastic filament and for inserting optical fibers in the grooves. The reinforced filament is pulled longi- tudinally through a die having rollers corresponding to the number of grooves, and the rollers are pressed against the thermoplastic material to form the grooves. The rollers may be at room temperature or may be heated to temperature above room temperature and below the melting point temperature of the thermoplastic material. The fibers are inserted in the grooves as the filament leaves the die and preferably, the filament is wrapped with a binding, e.g. a tape, after the fibers are inserted in the grooves so as to seal the grooves.
405573
Smart & Biggar
Societa Cavi Pirelli S.p.a.
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