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    Glove box filter system
    4.
    发明授权
    Glove box filter system 有权
    手套箱式过滤系统

    公开(公告)号：US06235072B1

    公开(公告)日：2001-05-22

    申请号：US09382611

    申请日：1999-08-25

    申请人： Nonna Kopylov ,  Ahmet Refik Kortan

    发明人： Nonna Kopylov ,  Ahmet Refik Kortan

    IPC分类号： B01D4600

    CPC分类号： B01D46/0023 ,  B01D46/0058 ,  B01D2267/40 ,  B08B15/026 ,  B25J21/02 ,  Y10S55/18

    摘要： A glove box filter system for filtering out particles from a glove box environment defined in a glove box having an outlet and an inlet. The filter system includes a first filter stage for receiving removed gas from the glove box environment. The first filter stage contains a chamber having a first filter through which the removed gas passes for filtering out particles contained in the removed gas. The filtered gas is provided to a circulation conduit connected to a blower for providing movement of the gas through the glove box environment. A second filter stage connected to the glove box inlet is provided for fine-filtering the gas passed by the first filter stage prior to the return of the gas to the glove box environment. The first filter stage is connected to the glove box environment through one or more valves which isolate the first filter stage from the glove box environment when replacement of a first filter contained in the first filter stage occurs. A purging conduit is also provided for purging the first filter stage chamber of particles during replacement of the first filter.

    摘要翻译： 一种手套箱式过滤系统，用于从手套箱中定义的具有出口和入口的手套箱中过滤颗粒。 过滤器系统包括用于从手套箱环境接收去除的气体的第一过滤器台。 第一过滤段包含具有第一过滤器的室，除去的气体通过该第一过滤器，以过滤除去的气体中所含的颗粒。 过滤的气体被提供到连接到鼓风机的循环管道，用于提供气体通过手套箱环境的运动。 提供连接到手套箱入口的第二过滤器台，用于在将气体返回到手套箱环境之前对通过第一过滤器阶段的气体进行精细过滤。 第一过滤器级通过一个或多个阀连接到手套箱环境，当更换包含在第一过滤器阶段中的第一过滤器时，隔离第一过滤器阶段与手套箱环境。 还提供清洗管道，用于在更换第一过滤器期间净化颗粒的第一过滤器阶段室。

    Method of eliminating light scattering bubbles in optical fiber preforms
    5.
    发明授权
    Method of eliminating light scattering bubbles in optical fiber preforms 失效
    消除光纤预制棒中光散射气泡的方法

    公开(公告)号：US5776222A

    公开(公告)日：1998-07-07

    申请号：US594194

    申请日：1996-01-31

    申请人： Nonna Kopylov ,  Ahmet R. Kortan

    发明人： Nonna Kopylov ,  Ahmet R. Kortan

    IPC分类号： C03B5/225 ,  C03B37/012 ,  C03B37/025

    CPC分类号： C03B37/01268 ,  C03B5/2252

    摘要： A method of fabricating optical preforms that yield optical fibers having minimal scattering centers by substantially eliminating bubbles and crystallites that form during preform fabrication. The method utilizes glasses having low viscosity in their liquid state to eliminate large bubbles that contain ambient gasses. Small bubbles that have sizes comparable to the wavelength of light are eliminated by simultaneously vacuum-pumping and slow-cooling the liquid glass used to fabricate the preform before pouring the glass into the preform cast mold. Finally, bubbles due to the formation of vacuums in the preform are eliminated by applying a temperature gradient across the cast mold to induce a steep vertical gradient in viscosity in the liquid glass when the liquid glass is poured in the mold.

    摘要翻译： 制造光学预成型件的方法，其通过基本上消除在预制件制造期间形成的气泡和微晶而产生具有最小散射中心的光纤。 该方法利用在其液态下具有低粘度的玻璃以消除含有环境气体的大气泡。 通过在将玻璃浇注到预成型模具中之前同时真空抽吸和缓慢冷却用于制造预成型件的液体玻璃来消除具有与光波长相当的尺寸的小气泡。 最后，通过在铸模上施加温度梯度来消除由于在预成型件中形成真空而产生的气泡，以便当将液体玻璃倒入模具中时在液体玻璃中引起陡峭的粘度梯度。

    Manufacture of fluoride glass fibers with phosphate coatings
    7.
    发明授权
    Manufacture of fluoride glass fibers with phosphate coatings 失效
    氟化物玻璃纤维与磷酸盐涂层的制造

    公开(公告)号：US5858052A

    公开(公告)日：1999-01-12

    申请号：US934375

    申请日：1997-09-19

    申请人： Nonna Kopylov ,  Ahmet Refik Kortan

    发明人： Nonna Kopylov ,  Ahmet Refik Kortan

    IPC分类号： C03B37/012 ,  C03C25/10 ,  C03C17/00 ,  C03C25/02 ,  C03B9/00 ,  C03B11/00

    CPC分类号： C03B37/01265 ,  C03C25/107 ,  Y10S501/904

    摘要： The specification describes a method for the manufacture of fluoride glass optical fibers which are covered with a protective coating of phosphate glass. The coating is produced by dipping the fluoride glass preform in a phosphate glass melt prior to drawing the optical fiber. The fluoride glass is ZBLAN. The phosphate glass has a glass transition temperature below 200.degree. C., which allows the dipping step to be carried out at a relatively low temperature where the preform temperature is maintained well below the crystallization temperature of the fluoride glass, and also where the viscosity of the fluoride glass preform is substantially higher than the viscosity of the phosphate glass coating material.

    摘要翻译： 该说明书描述了用磷酸盐玻璃的保护涂层覆盖的氟化物玻璃光纤的制造方法。 通过在拉制光纤之前将氟化物玻璃预制件浸入磷酸盐玻璃熔体中来制备涂层。 氟化玻璃是ZBLAN。 磷酸盐玻璃的玻璃化转变温度低于200℃，这允许浸渍步骤在相对低的温度下进行，其中预成型体温度保持在低于氟化物玻璃的结晶温度，并且其中粘度 氟化物玻璃预制件基本上高于磷酸盐玻璃涂层材料的粘度。

    Method of making core holes in cast optical fiber preforms by drawing a wire therethrough during solidification
    8.
    发明授权
    Method of making core holes in cast optical fiber preforms by drawing a wire therethrough during solidification 失效
    在凝固过程中通过拉丝穿过铸造光纤预成型件制造芯孔的方法

    公开(公告)号：US5827346A

    公开(公告)日：1998-10-27

    申请号：US594193

    申请日：1996-01-31

    申请人： Nonna Kopylov ,  Ahmet R. Kortan

    发明人： Nonna Kopylov ,  Ahmet R. Kortan

    IPC分类号： G02B6/00 ,  C03B37/012 ,  C03B37/014 ,  C03B37/017

    CPC分类号： C03B37/01268 ,  C03B2201/82 ,  C03B2203/22 ,  C03B2203/24 ,  Y10S65/04

    摘要： A method of making core holes in cast cladding glass for fabricating optical fiber preforms to make single and multimode optical fibers. Liquid cladding glass is pored into a casting mold having a metallic wire that is translated through the liquid glass as it cools so that the wire essentially carves out a smooth cylindrical core hole along the cylindrical axis of the cooled cladding glass. The method substantially reduces surface contamination at the interface of the core hole and the cladding glass because any liquid glass that comes in contacts with the metallic wire is removed during the process, leaving behind a pristine glass surface.

    摘要翻译： 一种在流延包层玻璃中制造芯孔的方法，用于制造光纤预制棒以制造单模和多模光纤。 液体包覆玻璃被放入具有金属线的铸模中，金属线在冷却时通过液体玻璃平移，使得丝线沿着冷却的包覆玻璃的圆柱轴线基本上雕刻出光滑的圆柱形核心孔。 该方法基本上减少了芯孔和包层玻璃的界面处的表面污染，因为在该过程中除去与金属线接触的任何液体玻璃，留下了原始的玻璃表面。