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1. 发明授权

US06378337B1 Method for producing bulk fused silica 失效
标题翻译：块状熔融二氧化硅的制造方法
公开(公告)号：US06378337B1
公开(公告)日：2002-04-30
申请号：US09663033
申请日：2000-09-15
申请人： John T. Brown , Michael S. Dobbins , Christine E. Heckle , Robert E. McLay , Mahendra K. Misra , Dale R. Powers , Michael H. Wasilewski
发明人： John T. Brown , Michael S. Dobbins , Christine E. Heckle , Robert E. McLay , Mahendra K. Misra , Dale R. Powers , Michael H. Wasilewski
IPC分类号： C03B2000
CPC分类号： C03B19/1423 , C03B19/1415 , C03B2201/03 , C03B2201/07 , C03B2201/21 , C03B2201/23 , C03B2207/06 , C03B2207/12 , C03B2207/20 , C03B2207/22 , C03B2207/32 , C03B2207/36
摘要： A method for preparing high-purity, bulk fused silica includes supplying silane gas, a gaseous fuel, and oxygen gas to a combustion burner. Silica particles are formed by passing the silane gas into a flame formed by the combustion reaction of the gaseous fuel with the oxygen gas while maintaining the ratio of the flow rate of the gaseous fuel to the flow rate of the silane gas no less than twelve and the ratio of the flow rate of the gaseous fuel to the flow rate of the oxygen gas no less than three. The silica particles formed are immediately deposited onto a hot bait to form a boule.
摘要翻译：制备高纯度体积熔融二氧化硅的方法包括向燃烧器供给硅烷气体，气体燃料和氧气。通过使硅烷气体通过气体燃料与氧气的燃烧反应形成的火焰中，同时保持气体燃料的流量与硅烷气体的流量的比率不小于12而形成二氧化硅颗粒，气体燃料的流量与氧气的流量的比率不小于3。形成的二氧化硅颗粒立即沉积在热诱饵上以形成一个原子棒。

2. 发明授权

US06367288B1 Method and apparatus for preventing burner-hole build-up in fused silica processes 失效
标题翻译：在熔融二氧化硅工艺中防止燃烧器孔积聚的方法和装置
公开(公告)号：US06367288B1
公开(公告)日：2002-04-09
申请号：US09473664
申请日：1999-12-29
申请人： Raymond E. Lindner , Robert E. McLay , Mahendra K. Misra , Michael H. Wasilewski
发明人： Raymond E. Lindner , Robert E. McLay , Mahendra K. Misra , Michael H. Wasilewski
IPC分类号： C03B37018
CPC分类号： C03B5/42 , C03B5/167 , C03B5/235 , C03B5/425
摘要： In furnaces for producing high purity fused silica glass boules, glass particles have a tendency to build-up adjacent the burner hole rim. It was discovered that unburned furnace gases containing silica particles where re-circulated in the furnace close to the burner hole rim and reacted with the oxygen of infiltrated air adjacent the burner hole, and thus deposited such particles in the form of a glassy build-up about the rim of the burner hole. In order to eliminate the source of oxygen adjacent the burner hole rim, a curtain of an inert gas is caused to flow through the burner hole between the sidewalls of the burner hole and the flame of the burner. Accordingly, the curtain of inert gas inhibits the combustion of the unburned hydrogen and carbon monoxide furnace gases adjacent the exit rim of the burner hole and thereby minimizes glass build-up about the burner hole rim.
摘要翻译：在用于生产高纯度熔融石英玻璃泡沫的炉中，玻璃颗粒具有在燃烧器孔边缘附近堆积的倾向。发现含有二氧化硅颗粒的未燃炉气体在炉内再循环到燃烧器孔边缘并与燃烧器孔附近的渗透空气的氧气反应，从而以玻璃状积聚的形式沉积这些颗粒关于燃烧器孔的边缘。为了消除燃烧器孔边缘附近的氧源，使惰性气体的窗帘流过燃烧器孔的侧壁和燃烧器的火焰之间的燃烧器孔。因此，惰性气体幕帘阻止燃烧器孔的出口边缘附近的未燃烧的氢气和一氧化碳炉气的燃烧，从而使关于燃烧器孔边缘的玻璃积聚最小化。

3. 发明授权

US06366353B1 Method to determine the identity of a material in an object 失效
标题翻译：确定对象中材质的身份的方法
公开(公告)号：US06366353B1
公开(公告)日：2002-04-02
申请号：US09434700
申请日：1999-11-05
申请人： John T. Brown , Xiaodong Fu , Mahendra K. Misra , Frederic J-Y Quan
发明人： John T. Brown , Xiaodong Fu , Mahendra K. Misra , Frederic J-Y Quan
IPC分类号： G01N2163
CPC分类号： G01N21/718 , C03B37/014 , C03B2207/70
摘要： A method and apparatus for determining an identity of at least one constituent on a soot that is deposited on a substrate is disclosed. The method includes the steps of sending a pulse of energy toward the substrate, focusing the energy to a predetermined point on the substrate to thereby generate a plasma on the substrate and to create at least one photon, detecting the photon using an analysis element, and identifying the constituent in the soot. The method may also include the step of determining the concentration of the constituent. Furthermore, the method may be used to determine the identity and concentration of at least one reactant in a flame of a burner or a reactant stream.
摘要翻译：公开了一种用于确定沉积在基板上的烟灰上的至少一种成分的身份的方法和装置。该方法包括以下步骤：向衬底发送能量脉冲，将能量聚焦到衬底上的预定点，从而在衬底上产生等离子体并产生至少一个光子，使用分析元件检测光子，以及识别烟灰中的成分。该方法还可以包括确定组分浓度的步骤。此外，该方法可以用于确定燃烧器或反应物流的火焰中的至少一种反应物的同一性和浓度。

4. 发明授权

US06588230B1 Sealed, nozzle-mix burners for silica deposition 失效
标题翻译：用于二氧化硅沉积的密封喷嘴混合燃烧器
公开(公告)号：US06588230B1
公开(公告)日：2003-07-08
申请号：US09364149
申请日：1999-07-30
申请人： Meryle D. M. Adler , John T. Brown , Mahendra K. Misra
发明人： Meryle D. M. Adler , John T. Brown , Mahendra K. Misra
IPC分类号： C03B1901
CPC分类号： F23L7/00 , C03B19/1407 , C03B19/1423 , C03B2207/06 , C03B2207/08 , C03B2207/12 , C03B2207/14 , C03B2207/20 , C03B2207/22 , C03B2207/26 , C03B2207/32 , C03B2207/34 , C03B2207/36 , C03B2207/42 , C03B2207/46 , C03B2207/52 , F23C2900/06043 , F23D14/22 , F23D14/32 , F23D14/52 , F23D2900/00018 , F23L2900/07002
摘要： Burners (40) for producing fused silica boules are provided. The burners employ a tube-in-tube (301-306) design with flats (56, 50) on some of the tubes (305, 301) being used to limit the cross-sectional area of certain passages (206, 202) within the burner and/or to atomize a silicon-containing, liquid source material, such as OMCTS. To avoid the possibility of flashback, the burner has separate passages for fuel (205) and oxygen (204, 206), i.e., the burner employs nozzle mixing, rather than premixing, of the fuel and oxygen. The burners are installed in burner holes (26) formed in the crown (20) of a furnace and form a seal with those holes so that ambient air cannot be entrained into the furnace through the holes. An external air cooled jacket (60) can be used to hold the temperature of the burner below a prescribed upper limit, e.g., 400° C.
摘要翻译：提供用于生产熔融二氧化硅颗粒的燃烧器（40）。燃烧器采用管中管（301-306）设计，其中一些管（305,301）上的平面（56,50）用于限制其内的某些通道（206,202）的横截面积燃烧器和/或雾化含硅液体源材料，例如OMCTS。为了避免闪回的可能性，燃烧器具有用于燃料（205）和氧气（204,206）的单独通道，即燃烧器采用燃料和氧气的喷嘴混合而不是预混合。燃烧器安装在形成在炉子的冠部（20）中的燃烧器孔（26）中并与这些孔形成密封，使得环境空气不能通过孔夹带到炉中。可以使用外部空气冷却护套（60）将燃烧器的温度保持在规定的上限（例如400℃）以下。

5. 发明授权

US06463761B2 Method and apparatus for minimizing air infiltration in the production of fused silica glass 失效
公开(公告)号：US06463761B2
公开(公告)日：2002-10-15
申请号：US09971249
申请日：2001-10-03
申请人： Floyd E. Marley , Mahendra K. Misra , Merrill F. Sproul
发明人： Floyd E. Marley , Mahendra K. Misra , Merrill F. Sproul
IPC分类号： C03B1906
CPC分类号： C03B19/1407 , Y10S65/08 , Y10S501/90
摘要： Fused silica boules (19) having improved radial homogeneity are produced by controlling the air flow around the boule (19) during its formation. The boule is formed in a cup-like containment vessel (13) which collects silica particles from a plurality of burners (14). The containment vessel (13) rotates and oscillates relative to the burners (14) as the boule (19) is formed. The containment vessel (13) is bounded by a cup-like containment wall (22), and a shadow or air flow wall (130) is spaced apart from and surrounds the containment wall (22) forming a gap or air flow passage (175) therebetween. A radially-outwardly extending deflecting wedge portion (23) is formed at the upper extent of the containment wall (22) and at an outlet end of flow passage (175). An upwardly and outwardly tapered surface (131) at the upper end of the air flow wall (130) complements an upwardly and outwardly deflection surface (123) formed on the deflection wedge (23) to form a radially-outwardly and upwardly flow passage (176) for discharging the flow from passage (175). The radially-outwardly and upwardly directed flow passage (176) deflects air infiltrated through the passage (175) outwardly away from the boule (19) so as to reduce and minimize the effects of infiltrated air on the boule.

6. 发明授权

US06314766B1 Apparatus for minimizing air infiltration in the production of fused silica glass 失效
标题翻译：用于最小化熔融石英玻璃生产中的空气渗透的装置
公开(公告)号：US06314766B1
公开(公告)日：2001-11-13
申请号：US09487011
申请日：2000-01-19
申请人： Floyd E. Marley , Mahendra K. Misra , Merrill F. Sproul
发明人： Floyd E. Marley , Mahendra K. Misra , Merrill F. Sproul
IPC分类号： C03B37018
CPC分类号： C03B19/1407 , Y10S65/08 , Y10S501/90
摘要： Fused silica boules (19) having improved radial homogeneity are produced by controlling the air flow around the boule (19) during its formation. The boule is formed in a cup-like containment vessel (13) which collects silica particles from a plurality of burners (14). The containment vessel (13) rotates and oscillates relative to the burners (14) as the boule (19) is formed. The containment vessel (13) is bounded by a cup-like containment wall (22), and a shadow or air flow wall (130) is spaced apart from and surrounds the containment wall (22) forming a gap or air flow passage (175) therebetween. A radially-outwardly extending deflecting wedge portion (23) is formed at the upper extent of the containment wall (22) and at an outlet end of flow passage (175). An upwardly and outwardly tapered surface (131) at the upper end of the air flow wall (130) complements an upwardly and outwardly deflection surface (123) formed on the deflection wedge (23) to form a radially-outwardly and upwardly flow passage (176) for discharging the flow from passage (175). The radially-outwardly and upwardly directed flow passage (176) deflects air infiltrated through the passage (175) outwardly away from the boule (19) so as to reduce and minimize the effects of infiltrated air on the boule.
摘要翻译：具有改善的径向均匀性的熔融二氧化硅凝胶（19）通过在其形成期间控制围绕坯料（19）的空气流而产生。该杯状物形成在从多个燃烧器（14）收集二氧化硅颗粒的杯状容纳容器（13）中。容纳容器（13）随着形成有毛坯（19）而相对于燃烧器（14）旋转和摆动。容纳容器（13）由杯状容纳壁（22）限定，并且阴影或空气流动壁（130）与容纳壁（22）间隔开并围绕形成间隙或气流通道（175））。径向向外延伸的偏转楔形部分（23）形成在容纳壁（22）的上部和流动通道（175）的出口端处。在空气流动壁（130）的上端处的向上和向外的锥形表面（131）与形成在偏转楔（23）上的向上和向外偏转表面（123）互补，以形成径向向外和向上流动的通道 176），用于从通道（175）排出流。径向向外和向上引导的流动通道（176）将通过通道（175）渗入的空气向外偏转离开毛坯（19），以便减少和最小化渗透的空气对毛坯的影响。

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