BR9809584A - Processo aperfeiçoado de estiramento de uma pré-forma de guia de onda - Google Patents
Processo aperfeiçoado de estiramento de uma pré-forma de guia de ondaInfo
- Publication number
- BR9809584A BR9809584A BR9809584-6A BR9809584A BR9809584A BR 9809584 A BR9809584 A BR 9809584A BR 9809584 A BR9809584 A BR 9809584A BR 9809584 A BR9809584 A BR 9809584A
- Authority
- BR
- Brazil
- Prior art keywords
- preform
- stretching
- improved process
- waveguide preform
- grabs
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/04—Re-forming tubes or rods
- C03B23/051—Re-forming tubes or rods by gravity, e.g. sagging
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/04—Re-forming tubes or rods
- C03B23/043—Heating devices specially adapted for re-forming tubes or rods in general, e.g. burners
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/04—Re-forming tubes or rods
- C03B23/045—Tools or apparatus specially adapted for re-forming tubes or rods in general, e.g. glass lathes, chucks
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/04—Re-forming tubes or rods
- C03B23/047—Re-forming tubes or rods by drawing
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
- C03B37/0124—Means for reducing the diameter of rods or tubes by drawing, e.g. for preform draw-down
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
Patente de Invenção para <B> "PROCESSO APERFEIçOADO DE ESTIRAMENTO DE UMA PRé-FORMA DE GUIA DE ONDA". <D> Um agarrador (16) agarra uma extremidade de uma pré-forma (8) e a puxa para baixo à uma velocidade constante conforme medida por um medidor (12). Desde que a pré-forma (8) é aquecida pela fornalha (4), a pré-forma estica. Este processo cria uma haste de pré-forma de fibra ótica de diâmetro controlado.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4503697P | 1997-04-28 | 1997-04-28 | |
PCT/US1998/007563 WO1998049109A1 (en) | 1997-04-28 | 1998-04-14 | Improved method of drawing a waveguide preform |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9809584A true BR9809584A (pt) | 2000-07-04 |
Family
ID=21935671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9809584-6A BR9809584A (pt) | 1997-04-28 | 1998-04-14 | Processo aperfeiçoado de estiramento de uma pré-forma de guia de onda |
Country Status (9)
Country | Link |
---|---|
US (2) | US5968221A (pt) |
EP (1) | EP1007485A1 (pt) |
JP (1) | JP2001522346A (pt) |
KR (1) | KR20010020336A (pt) |
CN (1) | CN1252040A (pt) |
AU (1) | AU732750B2 (pt) |
BR (1) | BR9809584A (pt) |
CA (1) | CA2286042A1 (pt) |
WO (1) | WO1998049109A1 (pt) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6314765B1 (en) * | 1998-10-06 | 2001-11-13 | Alcatel | Method and apparatus for controlling the shape and position of a deformable object |
DE69931825T8 (de) * | 1998-11-05 | 2007-09-20 | Shin-Etsu Chemical Co., Ltd. | Verfahren und Vorrichtung zum Herstellen einer Vorform und einer optischen Faser aus der Vorform |
JP3437480B2 (ja) * | 1999-03-12 | 2003-08-18 | 信越化学工業株式会社 | ガラス母材延伸装置の調整方法 |
EP1035082B1 (en) * | 1999-03-10 | 2005-12-07 | Shin-Etsu Chemical Co., Ltd. | Process and apparatus for sintering a porous glass preform |
US6128926A (en) * | 1999-03-15 | 2000-10-10 | Dicon Fiberoptics, Inc. | Graded index lens for fiber optic applications and technique of fabrication |
WO2002011961A1 (en) * | 2000-08-09 | 2002-02-14 | Chiral Photonics, Inc. | Apparatus and method for manufacturing fiber gratings |
US6779363B1 (en) | 2000-09-29 | 2004-08-24 | Corning Incorporated | Method for pregobbing an optical fiber preform and system producing optical fiber therefrom |
US7231786B2 (en) * | 2004-07-29 | 2007-06-19 | Corning Incorporated | Process and device for manufacturing glass sheet |
US7802452B2 (en) * | 2005-12-21 | 2010-09-28 | Johns Manville | Processes for making inorganic fibers |
JP6426478B2 (ja) * | 2014-01-31 | 2018-11-21 | 信越化学工業株式会社 | ガラスロッドの加工方法および加工装置 |
KR102317064B1 (ko) * | 2015-01-22 | 2021-10-25 | 헤래우스 쿼츠 노쓰 아메리카 엘엘씨 | 그리퍼 디바이스를 사용하여 완만하게 만곡된 가늘고 긴 유리 부품을 성형하는 장치 및 방법 |
EP3683195A1 (en) * | 2019-01-15 | 2020-07-22 | Heraeus Quartz North America LLC | Automated large outside diameter preform tipping process |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2179340B (en) * | 1985-08-21 | 1989-03-22 | Stc Plc | Optical fibre manufacture |
JPS62171932A (ja) * | 1986-01-21 | 1987-07-28 | Mitsubishi Cable Ind Ltd | 光フアイバ母材の延伸炉 |
JPH062601B2 (ja) * | 1986-02-28 | 1994-01-12 | 三菱電線工業株式会社 | 光フアイバ母材の自動延伸装置 |
JPH0764578B2 (ja) * | 1987-12-11 | 1995-07-12 | 住友電気工業株式会社 | シングルモード光フアイバ用母材の製造方法 |
JPH04342435A (ja) * | 1991-05-21 | 1992-11-27 | Fujikura Ltd | 光ファイバの線引き装置 |
JP2952863B2 (ja) * | 1991-09-20 | 1999-09-27 | 信越化学工業株式会社 | 光ファイバ用プリフォーム母材延伸装置 |
JPH0597459A (ja) * | 1991-10-09 | 1993-04-20 | Fujikura Ltd | 光フアイバ母材の延伸装置 |
KR950000588A (ko) * | 1993-06-18 | 1995-01-03 | 쿠라우찌 노리타카 | 싱글모드광파이버모재의 제조방법 |
SE511083C2 (sv) * | 1995-12-06 | 1999-08-02 | Sumitomo Electric Industries | Förfarande för att förlänga glasförform |
-
1998
- 1998-04-02 US US09/054,341 patent/US5968221A/en not_active Expired - Fee Related
- 1998-04-14 CN CN98803955A patent/CN1252040A/zh active Pending
- 1998-04-14 AU AU71194/98A patent/AU732750B2/en not_active Ceased
- 1998-04-14 WO PCT/US1998/007563 patent/WO1998049109A1/en not_active Application Discontinuation
- 1998-04-14 JP JP54703598A patent/JP2001522346A/ja active Pending
- 1998-04-14 KR KR1019997009951A patent/KR20010020336A/ko not_active Application Discontinuation
- 1998-04-14 EP EP98918230A patent/EP1007485A1/en not_active Withdrawn
- 1998-04-14 BR BR9809584-6A patent/BR9809584A/pt not_active IP Right Cessation
- 1998-04-14 CA CA002286042A patent/CA2286042A1/en not_active Abandoned
-
1999
- 1999-07-12 US US09/352,018 patent/US6138480A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
AU7119498A (en) | 1998-11-24 |
EP1007485A4 (en) | 2000-06-14 |
KR20010020336A (ko) | 2001-03-15 |
AU732750B2 (en) | 2001-04-26 |
JP2001522346A (ja) | 2001-11-13 |
US5968221A (en) | 1999-10-19 |
WO1998049109A1 (en) | 1998-11-05 |
US6138480A (en) | 2000-10-31 |
CA2286042A1 (en) | 1998-11-05 |
EP1007485A1 (en) | 2000-06-14 |
CN1252040A (zh) | 2000-05-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 5A , 6A , 7A E 8A ANUIDADES. |
|
B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 1830 DE 31-01-2006 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |