Method and apparatus for use in the manufacture of optical cable

Details Method and apparatus for use in the manufacture of optical cable Method and apparatus for use in the manufacture of optical cable

1996-04-01

1998-11-03

Vargot, Mathieu D.

Plastic article or earthenware shaping or treating: apparatus

Means providing a shaping orifice

264 125, 26417716, 425114, B29C 4712

Patent

active

058305173

ABSTRACT:
A method and apparatus for extruding a plastic rod having helical slots in its external surface includes the use of a die including a relieved exit end face, resulting in a more uniform drag on the plastic melt. Plastic rods so formed are used in slotted core type optical fiber telecommunication cables. The die includes internal channels which form peripheral ribs on the plastic rod. The channels may follow either a helical or a straight path.

REFERENCES:
patent: 2766480 (1956-10-01), Henning
patent: 4163641 (1979-08-01), Hulin et al.
patent: 4181486 (1980-01-01), Saito
patent: 4272472 (1981-06-01), Hulin et al.
patent: 4548567 (1985-10-01), Missout
patent: 5458836 (1995-10-01), Rakestraw et al.

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