Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Utilizing plasma – electric – electromagnetic – particulate – or...
Patent
1982-06-21
1985-07-09
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Utilizing plasma, electric, electromagnetic, particulate, or...
264 27, 264284, 264293, 350 9623, 425385, 425392, G02B 514
Patent
active
045281483
ABSTRACT:
A method and apparatus for forming grooves in a reinforced, thermoplastic filament and for inserting optical fibers in the grooves. The reinforced filament is pulled longitudinally 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.
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Boscher et al., "Optical Fiber Cables Using V-Grooved Cylindrical Units: High Performance Cables", Fiber and Integrated Optics, vol. 4, No. 1, pp. 67-94, 1982.
Housel James C.
Societa Cavi Pirelli S.p.A.
Woo Jay H.
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