Method of injecting a filler in controlled manner into a protect

Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Optical fiber – waveguide – or preform

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228148, 228 9, 264 401, 425114, 425135, B29D 1100

Patent

active

057594546

ABSTRACT:
A method of injecting a filler in controlled manner into a protective tube for protecting optical fibers, the method consisting in regulating the delivery rate of the filler being injected as the closed tube advances. In the method, the delivery rate is regulated by detecting the position of the front of the filler contained in the protective tube relative to at least one detection point on the line for advancing the closed protective tube.

REFERENCES:
patent: 4479702 (1984-10-01), Pryor et al.
patent: 4508423 (1985-04-01), Winter et al.
patent: 4554116 (1985-11-01), Cooke
patent: 5143274 (1992-09-01), Laupretre et al.
patent: 5395557 (1995-03-01), Griser et al.
Patent Abstracts of Japan, vol. 010, No. 052 (P-432), 28 Feb. 1986 corresponding to JP-A-60 195508 (Showa Densen Denran KK) dated 4 Oct. 1985 .

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