Coating apparatus – Immersion or work-confined pool type – Work extending through pool-confining wall area
Patent
1991-06-14
1992-11-03
Wityshyn, Michael G.
Coating apparatus
Immersion or work-confined pool type
Work extending through pool-confining wall area
118420, 118DIG18, 118DIG19, B05C 315
Patent
active
051605414
ABSTRACT:
A double-coating cup for applying two protective coatings simultaneously to an optical fiber includes a body having an bore formed therein and provided with a plurality of first and second coating-material inlet channels. A die holder is positioned in the bore in the body and the outer surface of the die holder has first and second slots formed therein positioned opposite the first and second coating-material inlet channels, respectively. The die holder also has first and second radial bores formed therein which communicate with the first and second slots, respectively. A guide die having a bore formed therein is positioned in the bore in the die holder and has a bore formed therein. First and second die nozzles and an intermediate die guide positioned therebetween are disposed in the die holder bore. The first die nozzle is positioned relative to the guide die so as to form a first coating-material slot between facing end faces of the guide die and the first die nozzle, and the second die nozzle is positioned relative to the guide die so as to form a second coating-material slot between facing end faces of the guide die and the second die nozzle. The first die nozzle has distribution channels formed therein which communicate the first radial bores with the first coating-material slot and the second die nozzle includes distribution channels formed therein which communicate the second radial bores with the second coating-material slot.
REFERENCES:
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patent: 4982688 (1991-01-01), Rothen
patent: 5031568 (1991-07-01), Milliman
Ericsson Mats H.
Fickling Peter R.
Sundberg Sven-Erik
Telefonaktiebolaget L M Ericsson
Wityshyn Michael G.
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