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1. 发明授权

US5676863A Induction plasma torch 失效
标题翻译：感应等离子体焰炬
公开(公告)号：US5676863A
公开(公告)日：1997-10-14
申请号：US501295
申请日：1995-07-12
申请人： Bernard Jouvenel , Pierre Ripoche
发明人： Bernard Jouvenel , Pierre Ripoche
IPC分类号： C03B37/012 , C03B37/014 , H05H1/26 , H05H1/30 , B23K10/00
CPC分类号： H01J37/32495 , C03B37/01291 , C03B37/01426 , H05H1/26 , H05H1/30
摘要： The present invention relates to an induction plasma torch of the type used in plasma deposition methods for depositing pure or doped silica when manufacturing preforms for optical fibers, the plasma torch comprising: a "reaction" tube inside which a plasma production zone is located; means for injecting reagents for forming the pure or doped silica to be deposited into the tube towards the plasma production zone; feed means for feeding plasma-generating gases into the tube towards the plasma production zone; and an induction coil surrounding the tube for supplying the energy required to form the plasma; wherein the tube is protected against the thermal cycles due to variations in the temperature inside the tube by means of a protective lining deposited on the inside wall of the reaction tube at the plasma production zone so as to surround the zone, the lining being made of a material based on silica, and having a thickness of less than 2 mm.
摘要翻译：本发明涉及一种用于在制造用于光纤的预成型件时沉积纯或掺杂二氧化硅的等离子体沉积方法中的类型的感应等离子体焰炬，所述等离子体焰炬包括：等离子体生产区所在的“反应”管; 用于注入用于形成待沉积到管中的纯的或掺杂的二氧化硅朝向等离子体生产区的试剂的装置; 用于将等离子体产生气体送入等离子体产生区域的进料装置; 以及围绕所述管的用于提供形成所述等离子体所需的能量的感应线圈; 其中通过沉积在等离子体生产区的反应管的内壁上的保护衬层，由于管内温度的变化来保护管免受热循环，从而围绕该区，衬层由基于二氧化硅的材料，其厚度小于2mm。

2. 发明授权

US5522007A Method of building up an optical fiber preform by plasma deposition, and an optical fiber obtained from the preform built up by the method 失效
标题翻译：通过等离子体沉积建立光纤预制件的方法，以及由该方法构成的预制件获得的光纤
公开(公告)号：US5522007A
公开(公告)日：1996-05-28
申请号：US355336
申请日：1994-12-12
申请人： Alain Drouart , Benoit Gouez , Bernard Jouvenel , Yves Lumineau , Max Matau , Pierre Ripoche
发明人： Alain Drouart , Benoit Gouez , Bernard Jouvenel , Yves Lumineau , Max Matau , Pierre Ripoche
IPC分类号： G02B6/00 , C03B37/012 , C03B37/014 , C03B37/018 , G02B6/44 , G02B6/22
CPC分类号： C03B37/01291 , C03B37/01413
摘要： A method of using a plasma to build up an optical fiber preform consists in injecting hydroxyl ions in a controlled manner into the build-up silica that is deposited on the preform. The invention is applicable to the manufacture of optical fibers, in particular monomode fibers.
摘要翻译：使用等离子体来构建光纤预制棒的方法在于将受控方式的羟基离子注入到沉积在预型件上的积聚二氧化硅中。本发明可应用于制造光纤，特别是单模光纤。

3. 发明授权

US07132620B2 Inductive thermal plasma torch 失效
标题翻译：感应式热等离子体焰炬
公开(公告)号：US07132620B2
公开(公告)日：2006-11-07
申请号：US10943994
申请日：2004-09-20
申请人： Daniel Coelho , Jean-Pascal Dumont-Monnet , Pierre Ripoche
发明人： Daniel Coelho , Jean-Pascal Dumont-Monnet , Pierre Ripoche
IPC分类号： B23K10/00
CPC分类号： C03B37/01291 , H05H1/30 , H05H1/36 , H05H2001/3426 , H05H2001/3473
摘要： The invention relates to an inductive thermal plasma torch comprising a confinement tube that comprises, longitudinally in relation to the tube, metal fingers which are insulated from each other, an ignition device that comprises an igniter (4) and an igniter support (1, 3), the purpose of the igniter (4) being to initiate a discharge in the plasma of the torch, the support having an electrically conductive end (1) which is connected to the electrical earth (2) of the plant and another, electrically insulating, end (3) which carries the igniter, the ignition device also comprising an electrically conductive connection (5) connecting the igniter (4) to the electrically conductive end (1) of the support so that the igniter is able to initiate the discharge in the plasma, the electrically conductive connection (5) having a section that is sufficiently narrow to limit the intensity of the current capable of passing through the igniter (4) in order to avoid electrical arcing by capacitive discharge between the ignition device and another part of the torch.
摘要翻译：本发明涉及一种感应热等离子体焰炬，其包括限制管，其包括相对于所述管纵向相互绝缘的金属指，所述点火装置包括点火器（4）和点火器支撑件（1,3）），所述点火器（4）的目的是在所述手电筒的等离子体中引发放电，所述支撑件具有导电端（1），所述导电端（1）连接到所述设备的电气接地（2），并且另一个电绝缘，所述点火装置还包括将所述点火器（4）连接到所述支撑件的导电端（1）的导电连接（5），使得所述点火器能够启动所述点火器等离子体，导电连接（5）具有足够窄的部分以限制能够通过点火器（4）的电流的强度，以避免电气在点火装置和手电筒的另一部分之间通过电容放电来电弧。

4. 发明授权

US06715321B1 Method of fabricating an optical fiber preform including outside deposition of silica, possibly doped silica 失效
标题翻译：包括二氧化硅的外部沉积，可能掺杂的二氧化硅的光纤预制件的制造方法
公开(公告)号：US06715321B1
公开(公告)日：2004-04-06
申请号：US09519847
申请日：2000-03-06
申请人： Pierre Ripoche , Alain Drouart , Benoît Gouez
发明人： Pierre Ripoche , Alain Drouart , Benoît Gouez
IPC分类号： C03B3707
CPC分类号： C03B37/01291 , C03B2207/60 , C03B2207/70 , Y02P40/57
摘要： A method of fabricating an optical fiber preform is disclosed which includes a step of outside deposition of silica possibly doped with at least one dopant by injecting at least one substance in the form of silica or a precursor of silica in the vicinity of a heating area created by a heating system during at least one pass of an injector system and the heating system along a longitudinal axis of the preform during which the relative positions of the injector and heating systems ore adjusted so that silica is deposited in the heated area regardless of the position of the heating system.
摘要翻译：公开了一种制造光纤预制棒的方法，该方法包括通过在形成的加热区域附近注入至少一种二氧化硅或二氧化硅前体的至少一种物质，可以掺杂至少一种掺杂剂的二氧化硅的外部沉积步骤通过在喷射器系统和加热系统沿着预成型件的纵向轴线的至少一次通过期间的加热系统，调节喷射器和加热系统矿石的相对位置，使得二氧化硅沉积在加热区域中而不管位置的加热系统。

5. 发明授权

US06178779B2 Butt welding optical fiber preforms with a plasma torch 失效
标题翻译：用等离子体焰炬对接焊接光纤预制棒
公开(公告)号：US06178779B2
公开(公告)日：2001-01-30
申请号：US09280826
申请日：1999-03-30
申请人： Alain Drouart , Pierre Ripoche , Bernard Wurier
发明人： Alain Drouart , Pierre Ripoche , Bernard Wurier
IPC分类号： C03B37012
CPC分类号： C03B23/043 , C03B23/045 , C03B23/207 , C03B37/01205
摘要： The invention relates to a method of assembling two optical fiber preforms together end-to-end, the method comprising the following operations: the two cylindrical preforms are placed in alignment along a common longitudinal axis; the preforms are rotated about the common longitudinal axis; the facing ends of said preforms are heated by a heater; and the preforms are moved towards each other parallel to the common axis to press them against each other so as to form intimate contact between the ends after cooling. According to the invention, the heating is performed by causing the preforms or heater to move in a radial direction orthogonal to the common longitudinal axis in such a manner as to heat the peripheries and then the cores of said preforms.
摘要翻译：本发明涉及一种将两个光纤预制件端对端组装的方法，该方法包括以下操作：将两个圆柱形预成型件沿着共同的纵向轴线对齐;预制件围绕公共纵向轴线旋转; 所述预制件的面对端由加热器加热; 并且预成型件彼此平行于公共轴线彼此移动，以将它们彼此压紧，以便在冷却之后在端部之间形成紧密接触。根据本发明，通过使预成型件或加热器沿与公共纵向轴线正交的径向移动，从而加热周边，然后加热所述预成型件的芯，来进行加热。

6. 发明授权

US06269663B1 Method of purifying silica and depositing on an optical fiber preform 有权
标题翻译：纯化二氧化硅并沉积在光纤预制棒上的方法
公开(公告)号：US06269663B1
公开(公告)日：2001-08-07
申请号：US09137141
申请日：1998-08-20
申请人： Alain Drouart , Benoit Gouez , Yves Lumineau , Pierre Ripoche , Jean-Florent Campion
发明人： Alain Drouart , Benoit Gouez , Yves Lumineau , Pierre Ripoche , Jean-Florent Campion
IPC分类号： C03B3718
CPC分类号： C03C1/022 , C03B37/01291
摘要： The deposit of natural or synthetic silica comprises a preform (1) set into rotation (7) in front of a plasma torch (3) which moves back and forth substantially parallel to a longitudinal direction (L) of the preform (1), a feed duct (9) for feeding the plasma with grains of natural or synthetic silica (11), characterized in that the same feed duct (9) feeds the plasma with a fluorine or chlorine compound, preferably a fluorine compound, mixed with a carrier gas (15). Sodium or lithium contained in the grains of natural or synthetic silica reacts with the fluorine or chlorine of the fluorine or chlorine compound, making it possible to improve the optical quality of fibers built up with the natural or synthetic silica at reduced cost.
摘要翻译：天然或合成二氧化硅的沉积物包括在基本上平行于预成型件（1）的纵向方向（L）前后移动的等离子体炬（3）前面设置旋转（7）的预成型件（1），用于将等离子体与天然或合成二氧化硅（11）的颗粒进料的进料管道（9），其特征在于，相同的进料管道（9）将等离子体与载体气体混合的氟化合物或氯化合物（15）天然或合成二氧化硅颗粒中所含的钠或锂与氟或氯化合物的氟或氯反应，可以以降低的成本提高用天然或合成二氧化硅生成的纤维的光学质量。

7. 发明授权

US06215092B1 Plasma overcladding process and apparatus having multiple plasma torches 失效
标题翻译：具有多个等离子体炬的等离子体外包装工艺和设备
公开(公告)号：US06215092B1
公开(公告)日：2001-04-10
申请号：US09328008
申请日：1999-06-08
申请人： Jacques Goudeau , Pierre Ripoche , Patrick Humbert
发明人： Jacques Goudeau , Pierre Ripoche , Patrick Humbert
IPC分类号： B23K1000
CPC分类号： C03B37/01291 , Y02P40/57
摘要： A method and associated apparatus for increasing the over cladding rate in perform production while maintaining the integrity of the glass quality of the cladding. The method and apparatus are designed to utilize the full capacity of the generator to thereby improve the overall deposition speed without sacrificing the glass quality. In particular, it is estimated that the process of the present invention will increase the deposition speed by approximately 50% and still obtain suitable glass quality. This object is achieved by utilizing two plasma torches, instead of just one, that are driven by the same power generator. The process of over-cladding a perform includes the steps of supporting the perform on a lathe; providing first and second plasma torches having nozzles angled toward the perform; powering the first and second plasma torches with a common generator such that the plasma torches create plasma flames directed toward a surface of the perform; introducing a quartz sand at a junction between the first plasma torch and the surface of the perform to fuse the quartz sand on the surface of the perform; and moving the perform with respect to the plasma torches. According on one aspect of the invention, the second plasma torch is provided upstream of the first plasma torch so as to preheat the surface before the fusing of the quartz sand by the first plasma torch. According to a second aspect of the invention, the second plasma torch is located downstream of the first plasma torch to post-heat the quartz sand after the initial fusing by the first plasma torch. According to a third aspect of the invention, the quartz sand is introduced at a junctions between the surface of the perform and both of the plasma torches to fuse the quartz sand with both the first and second plasma torches simultaneously.
摘要翻译：一种用于在保持涂层的玻璃质量的完整性的同时提高生产中的包覆率的方法和相关装置。该方法和设备被设计为利用发电机的全部容量，从而提高整体沉积速度，而不牺牲玻璃质量。特别地，估计本发明的方法将使沉积速度提高约50％，并且仍然获得合适的玻璃质量。该目的通过利用由相同发电机驱动的两个等离子体炬，而不是仅仅一个来实现。包覆表演的过程包括在车床上支持表演的步骤; 提供具有朝向演奏角度的喷嘴的第一等离子体炬和第二等离子体炬; 用公共发电机为第一等离子体炬和第二等离子炬供电，使得等离子炬产生指向演绎表面的等离子体火焰; 在第一等离子体焰炬和表面之间的接合处引入石英砂，以将石英砂融合在表面上; 并且相对于等离子体火炬移动演奏。根据本发明的一个方面，第二等离子体焰炬设置在第一等离子体焰炬的上游，以便在通过第一等离子体焰炬熔融石英砂之前预热表面。根据本发明的第二方面，第二等离子体焰炬位于第一等离子体焰炬的下游，以在通过第一等离子体焰炬进行初始熔化之后对石英砂进行后加热。根据本发明的第三方面，石英砂在表面的表面和两个等离子体炬之间的接合处被引入，以将石英砂与第一和第二等离子炬同时熔化。

8. 发明授权

US06631628B2 Method of purifying natural or synthetic silica, and application thereof to depositing purified natural or synthetic silica on an optical fiber preform 失效
标题翻译：纯化天然或合成二氧化硅的方法及其在光纤预型体上沉积纯化天然或合成二氧化硅的应用
公开(公告)号：US06631628B2
公开(公告)日：2003-10-14
申请号：US10247616
申请日：2002-09-20
申请人： Alain Drouart , Benoît Gouez , Yves Lumineau , Pierre Ripoche , Jean-Forent Campion
发明人： Alain Drouart , Benoît Gouez , Yves Lumineau , Pierre Ripoche , Jean-Forent Campion
IPC分类号： C03B3718
CPC分类号： C01B33/12 , C03B19/01 , C03B37/01291 , C03C1/022
摘要： Natural or synthetic silica is deposited on a preform set into rotation in front of a plasma torch which moves back and forth substantially parallel to a longitudinal direction of the preform, a first feed duct feeds the plasma with grains of natural or synthetic silica while a second feed duct feeds the plasma with a fluorine or chlorine compound, preferably a fluorine compound, mixed with a carrier gas. Any sodium or lithium contained in the grains of natural or synthetic silica react with the fluorine or chlorine of the fluorine or chlorine compound, thereby making it possible to improve the optical quality of fibers drawn from a preform built up with natural or synthetic silica, and to do so at reduced cost.
摘要翻译：将天然或合成二氧化硅沉积在等离子体焰炬的前面的预制件上，所述等离子体焰炬基本上平行于预成型件的纵向方向前后移动，第一进料管将天然或合成二氧化硅颗粒供给等离子体，而第二进料管用与载气混合的氟或氯化合物，优选氟化合物来供给等离子体。天然或合成二氧化硅颗粒中所含的任何钠或锂与氟或氯化合物的氟或氯反应，从而可以提高由天然或合成二氧化硅构成的预成型体所拉伸的纤维的光学品质，以降低成本进行。

9. 发明授权

US06412310B1 Apparatus for gravity feeding powder to a plasma torch for manufacturing glass fiber performs 有权
标题翻译：用于将粉末重力送入用于制造玻璃纤维的等离子体焰炬的设备
公开(公告)号：US06412310B1
公开(公告)日：2002-07-02
申请号：US09525482
申请日：2000-03-15
申请人： Alain Drouart , Benoît Gouez , Pierre Ripoche
发明人： Alain Drouart , Benoît Gouez , Pierre Ripoche
IPC分类号： C03B37018
CPC分类号： C03B37/01291
摘要： The invention relates to manufacturing glass fiber preforms. It relates to a method comprising rotating preform about its own axis, and displacing a plasma torch in translation relative to the preform in a direction parallel to the axis of the preform, the axes of the flame and of the preform and being offset by a certain distance, and then inserting glass powder into the plasma flame under gravity. According to the invention, the glass powder is accelerated before penetrating into the plasma flame by means of an accelerator gas, and the offset distance between the axes is reduced with increasing acceleration of the powder. The invention is applicable to manufacturing glass fibers, and in particular optical fibers.
摘要翻译：本发明涉及制造玻璃纤维预制件。本发明涉及一种方法，包括围绕其自身的轴线旋转预制件，以及使等离子体焰炬在平行于预成型件的轴线，火焰和预成型件的轴线方向相对于预成型件平移的位置移动，并被一定的距离，然后在重力下将玻璃粉末插入等离子体火焰。根据本发明，玻璃粉末在通过加速剂气体渗入等离子火焰之前被加速，并且随着粉末的加速度的增加，轴之间的偏移距离减小。本发明适用于制造玻璃纤维，特别是光纤。

10. 发明授权

US06202447B1 Method of making a glass fiber preform with adjusting a spacing while increasing acceleration of a starting glass powder 失效
标题翻译：制备玻璃纤维预成型件的方法，其中增加起始玻璃粉末的加速度的同时调节间隔
公开(公告)号：US06202447B1
公开(公告)日：2001-03-20
申请号：US09070871
申请日：1998-05-01
申请人： Alain Drouart , Benoît Gouez , Pierre Ripoche
发明人： Alain Drouart , Benoît Gouez , Pierre Ripoche
IPC分类号： C03B37027
CPC分类号： C03B37/01291
摘要： The invention relates to manufacturing glass fiber preforms. It relates to a method comprising rotating preform about its own axis, and displacing a plasma torch in translation relative to the preform in a direction parallel to the axis of the preform, the axes of the flame and of the preform and being offset by a certain distance, and then inserting glass powder into the plasma flame under gravity. According to the invention, the glass powder is accelerated before penetrating into the plasma flame by means of an accelerator gas, and the offset distance between the axes is reduced with increasing acceleration of the powder. The invention is applicable to manufacturing glass fibers, and in particular optical fibers.
摘要翻译：本发明涉及制造玻璃纤维预制件。本发明涉及一种方法，包括围绕其自身的轴线旋转预制件，以及使等离子体焰炬在平行于预成型件的轴线，火焰和预成型件的轴线方向相对于预成型件平移的位置移动，并被一定的距离，然后在重力下将玻璃粉末插入等离子体火焰。根据本发明，玻璃粉末在通过加速剂气体渗入等离子火焰之前被加速，并且随着粉末的加速度的增加，轴之间的偏移距离减小。本发明适用于制造玻璃纤维，特别是光纤。

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