利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

22 条记录 (耗时 0.016 秒)

    Method of making solid preforms and optical fibers drawn therefrom
    2.
    发明授权
    Method of making solid preforms and optical fibers drawn therefrom 失效
    制作固体预成型件和从其中拉出的光纤的方法

    公开(公告)号：US4341441A

    公开(公告)日：1982-07-27

    申请号：US761746

    申请日：1977-01-24

    申请人： Paul E. Lighty ,  Philip W. Black ,  John Irven

    发明人： Paul E. Lighty ,  Philip W. Black ,  John Irven

    IPC分类号： C03B37/018 ,  G02B6/00 ,  G02B6/44 ,  C03B37/025 ,  C03B37/075

    CPC分类号： C03B37/01861 ,  C03B37/01807 ,  C03B37/01853 ,  C03B37/01869 ,  G02B6/4492 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2205/16

    摘要： An optical glass fiber is formed of an inner layer of germania doped glass within the bore of the outer cladding tube of silica. The tube with the higher index of refraction inner layer is rotated while being heated to collapse the bore to form an optical fiber preform. The preform is then drawn into fiber in a separate operation. A first silica layer can be deposited within the tube bore before the germania doped layer. The deposition of germania takes place under hydrogen free conditions. Appropriate heat treatment of the tube avoids excessive evaporation of germania and provides a graded transition of the refractive index in the boundary between core and cladding.

    摘要翻译： 光学玻璃纤维由二氧化硅外包层的孔内的由掺杂锗的玻璃的内层形成。 具有较高折射率内层的管旋转同时被加热以使孔塌缩以形成光纤预制件。 然后将预成型件在单独的操作中拉制成纤维。 第一二氧化硅层可以在氧化锗掺杂层之前沉积在管孔内。 铀的沉积在无氢条件下进行。 管的适当热处理避免了氧化锗的过度蒸发，并且提供了芯和包层之间的边界中折射率的渐变过渡。

    Optical fiber manufacture
    6.
    发明授权
    Optical fiber manufacture 失效
    光纤制造

    公开(公告)号：US4242118A

    公开(公告)日：1980-12-30

    申请号：US33914

    申请日：1979-04-27

    申请人： John Irven

    发明人： John Irven

    IPC分类号： C03B37/014 ,  C03C25/02

    CPC分类号： C03B37/0142 ,  C03B37/01426 ,  C03B37/0148 ,  C03B2203/26 ,  C03B2207/54 ,  C03B2207/66

    摘要： A method for making an optical fiber solid rod preform wherein a vapor reaction deposit process is used to form a localized deposit on an end face of a rod or disc by relative movement in which the position of the localized deposit is scanned over the end face of the solid rod or disc and at the same time the reaction is progressively changed to cause the deposit building up on the end face to have a radially graded refractive index profile.

    摘要翻译： 一种用于制造光纤固体棒预制件的方法，其中使用蒸气反应沉积工艺在棒或盘的端面上形成局部沉积物，通过相对运动，其中局部沉积物的位置在 固体棒或盘，同时反应逐渐改变，使得在端面上沉积物形成具有径向渐变的折射率分布。

    Sub-atmospheric gas delivery method and apparatus
    9.
    发明授权
    Sub-atmospheric gas delivery method and apparatus 失效
    次气体输送方法及装置

    公开(公告)号：US07013916B1

    公开(公告)日：2006-03-21

    申请号：US09641933

    申请日：2000-08-18

    申请人： Ronald Martin Pearlstein ,  John Giles Langan ,  Dao-Hong Zheng ,  John Irven ,  Benjamin Lee Hertzler

    发明人： Ronald Martin Pearlstein ,  John Giles Langan ,  Dao-Hong Zheng ,  John Irven ,  Benjamin Lee Hertzler

    IPC分类号： F16K11/20 ,  F16K31/12 ,  G05D7/00

    CPC分类号： F16K1/305 ,  F16K37/0091 ,  F17C13/04 ,  F17C2205/0338 ,  F17C2205/035 ,  F17C2205/0391 ,  F17C2227/044 ,  F17C2227/048 ,  F17C2270/0518 ,  G05D16/10 ,  Y10T137/0379 ,  Y10T137/0396 ,  Y10T137/4245 ,  Y10T137/5762 ,  Y10T137/7069 ,  Y10T137/7794 ,  Y10T137/7796 ,  Y10T137/86083 ,  Y10T137/87917

    摘要： An apparatus for containing and delivering hazardous gases at sub-atmospheric pressure from a pressurized container is provided which includes a valve body in sealed communication with an outlet orifice of the pressurized container. The outlet orifice of the pressurized container is open to an interior chamber of the pressurized container. A fluid discharge path is located in the valve body, between the outlet orifice of the pressurized container and an outlet orifice of the valve body. A pressure regulator having a pressure sensing means capable of responding to sub-atomospheric pressure, is integral to the valve body, in-line in the fluid discharge path with the pressure regulator pre-set to a pressure below atmospheric pressure to allow the gas to be delivered through the regulator from the interior chamber only when the pressure regulator senses a downstream pressure at or below the pre-set pressure. Finally, a high pressure shut-off valve integral to the valve body and in-line in the fluid discharge path and upstream from the pressure regulator is included. The gas flows through from the interior chamber of the pressurized container through the fluid discharge path, through the outlet orifice of the pressurized container, and through the outlet orifice of the valve body only when the outlet orifice is connected to a vacuum system. A method of containing and delivering hazardous gases at sub-atmospheric pressure is also provided.

    摘要翻译： 提供了一种用于从加压容器中容纳和传送低于大气压的有害气体的装置，其包括与加压容器的出口孔密封连通的阀体。 加压容器的出口孔通向加压容器的内部室。 流体排放路径位于阀体中，位于加压容器的出口孔与阀体的出口孔之间。 压力调节器具有能够响应亚大气压力的压力感测装置，与压力调节器预先设定为低于大气压的压力一起在流体排放路径中与阀体成一体，以允许气体 只有当压力调节器感测到等于或低于预设压力的下游压力时，才能通过调节器从内部室输送。 最后，包括与阀体成一体并且在流体排放路径中并且在压力调节器上游的一体的高压截止阀。 如果出口孔连接到真空系统，则气体从加压容器的内部腔室通过流体排出通道，通过加压容器的出口孔流过阀体的出口孔。 还提供了一种在低于大气压的压力下容纳和输送有害气体的方法。