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1. (WO2019046227) METHOD AND FURNACE FOR PREPARING AN OPTICAL FIBER PREFORM USING ETCHANT AND NEUTRALIZING GASES
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Pub. No.: WO/2019/046227 International Application No.: PCT/US2018/048224
Publication Date: 07.03.2019 International Filing Date: 28.08.2018
IPC:
C03B 37/012 (2006.01) ,C03B 37/014 (2006.01)
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
B
MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL
37
Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
01
Manufacture of glass fibres or filaments
012
Manufacture of preforms for drawing fibres or filaments
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
B
MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL
37
Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
01
Manufacture of glass fibres or filaments
012
Manufacture of preforms for drawing fibres or filaments
014
made entirely or partially by chemical means
Applicants:
CORNING INCORPORATED [US/US]; One Riverfront Plaza Corning, New York 14831, US
Inventors:
BOOKBINDER, Dana Craig; US
FIACCO, Richard Michael; US
TANDON, Pushkar; US
Agent:
CARLSON, Robert L.; US
Priority Data:
201981126.10.2017NL
62/551,37229.08.2017US
Title (EN) METHOD AND FURNACE FOR PREPARING AN OPTICAL FIBER PREFORM USING ETCHANT AND NEUTRALIZING GASES
(FR) PROCÉDÉ ET FOUR POUR PRÉPARER UNE PRÉFORME DE FIBRE OPTIQUE À L'AIDE DE GAZ DE GRAVURE ET DE NEUTRALISATION
Abstract:
(EN) A method of preparing an optical preform 22, comprises the steps of: positioning an optical preform 22 comprising silica within a cavity of a furnace 10; passing an etchant gas 42 into the furnace and at least one of through an open channel 34 defined in the optical preform 22 and around the optical preform 22; and passing a neutralizing gas 50 into the cavity of the furnace, the neutralizing gas 50 configured to neutralize the etchant gas 42. A furnace with etchant and neutralizing gas systems 38, 46 is also disclosed.
(FR) L'invention concerne un procédé de préparation d'une préforme optique 22, comprenant les étapes consistant à : positionner une préforme optique 22 comprenant de la silice à l'intérieur d'une cavité d'un four 10 ; faire passer un gaz de gravure 42 dans le four et l'un parmi au moins à travers un canal ouvert 34 défini dans la préforme optique 22 ou autour de la préforme optique 22 ; et faire passer un gaz de neutralisation 50 dans la cavité du four, le gaz de neutralisation 50 étant conçu pour neutraliser le gaz de gravure 42. L'invention concerne également un four pourvu des systèmes 38, 46 de gaz de gravure et de neutralisation.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)