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    Back pressure valve with double barrier sealing
    2.
    发明授权
    Back pressure valve with double barrier sealing 失效
    带双屏障密封的背压阀

    公开(公告)号：US08539976B1

    公开(公告)日：2013-09-24

    申请号：US13233106

    申请日：2011-09-15

    Applicant: Doyle Wayne Rodgers, Jr. ,  James Otis Miller

    Inventor： Doyle Wayne Rodgers, Jr. ,  James Otis Miller

    IPC: F16K15/06

    CPC classification number: F16K15/066 ,  E21B34/02 ,  Y10T137/7838 ,  Y10T137/7939

    Abstract: A back pressure valve for providing a double barrier to flow for use with a tubing hanger within a well bore, wherein the back pressure valve can have a first body piece threadably engaged and sealed with a second body piece. A first piston can engage a first surface for sealing bottom pressure to provide a first barrier to flow. A second piston can engage a second surface for redundantly sealing bottom pressure to provide a second barrier to flow. The back pressure valve can have one-way and two-way back pressure valve assemblies. The two-way back pressure valve assembly can include a bidirectional piston having a double sealing face for engaging sealing surfaces and sealing bottom pressure from the well bore while allowing testing without stopping a flow of fluid.

    Abstract translation: 一种背压阀，用于提供与井筒内的管道悬挂器一起使用的流动的双重屏障，其中所述背压阀可以具有与第二主体件螺纹接合和密封的第一主体部件。 第一活塞可接合第一表面以密封底部压力以提供流动的第一屏障。 第二活塞可以接合第二表面以冗余地密封底部压力以提供流动的第二阻挡层。 背压阀可以具有单向和双向背压阀组件。 双向背压阀组件可以包括双向活塞，其具有用于接合密封表面的双重密封面并且密封来自井眼的底部压力，同时允许测试而不停止流体流动。

    Apparatus and system for wide angle narrow-band optical detection in daylight
    3.
    发明授权
    Apparatus and system for wide angle narrow-band optical detection in daylight 有权
    日光广角窄带光学检测装置及系统

    公开(公告)号：US07570426B2

    公开(公告)日：2009-08-04

    申请号：US11478484

    申请日：2006-06-29

    Applicant: Wayne Rodgers ,  Robert E. Erlandson ,  C. Bryon Hargis ,  Neil Murphy

    Inventor： Wayne Rodgers ,  Robert E. Erlandson ,  C. Bryon Hargis ,  Neil Murphy

    IPC: G02B27/28

    CPC classification number: G08B17/12 ,  F41H11/02 ,  G01J3/00 ,  G01J5/0018 ,  G01J5/0066 ,  G01J5/089 ,  G01J5/602 ,  G01J2003/1213 ,  G02B1/06 ,  G02B27/288 ,  G08B15/004

    Abstract: Techniques for filtering light include, along a central optical axis, an entrance window; a first polarizer, a narrowband polarization-changing material, a second polarizer, and an exit window. The optical paths through the filter are substantively unscattered and pass through unstressed components between the polarizers. The polarization-changing material changes polarization for a narrow wavelength band on the order of about 0.01×10−9 meters and does not condense on optical windows and polarizers during the operational lifetime. An aspect ratio, defined by a distance from the entrance window to the exit window divided by an optical aperture for the entrance window, is less than 4/1. This filter thus transmits light substantively unattenuated in the narrow wavelength band up to a maximum acceptance angle greater than 5 degrees. Combined with optics and imaging detectors, it is suitable for wide area surveillance, including daylight surveillance for combustion like forest fire and missile plume.

    Abstract translation: 用于过滤光的技术包括沿着中心光轴的入口窗; 第一偏振器，窄带偏振变化材料，第二偏振器和出射窗。 通过滤光器的光路实质上是不散射的，并通过偏振器之间的未受应力的部件。 偏振变化材料对于约0.01×10 -9米的窄波长带改变极化，并且在操作寿命期间不会在光学窗口和偏振器上冷凝。 由从入口窗口到出口窗口的距离除以入口窗口的光学孔径限定的纵横比小于4/1。 因此，该滤光器将窄波长带内实质上未衰减的光线发射到大于5度的最大接收角。 结合光学和成像检测器，适用于广域监控，包括日光监视，如森林火灾和导弹羽流。

    Apparatus and system for wide angle narrow-band optical detection in daylight
    4.
    发明申请
    Apparatus and system for wide angle narrow-band optical detection in daylight 有权
    日光广角窄带光学检测装置及系统

    公开(公告)号：US20070017281A1

    公开(公告)日：2007-01-25

    申请号：US11478484

    申请日：2006-06-29

    Applicant: Wayne Rodgers ,  Robert Erlandson ,  C. Hargis ,  Neil Murphy

    Inventor： Wayne Rodgers ,  Robert Erlandson ,  C. Hargis ,  Neil Murphy

    IPC: G01M15/00

    CPC classification number: G08B17/12 ,  F41H11/02 ,  G01J3/00 ,  G01J5/0018 ,  G01J5/0066 ,  G01J5/089 ,  G01J5/602 ,  G01J2003/1213 ,  G02B1/06 ,  G02B27/288 ,  G08B15/004

    Abstract: Techniques for filtering light include, along a central optical axis, an entrance window; a first polarizer, a narrowband polarization-changing material, a second polarizer, and an exit window. The optical paths through the filter are substantively unscattered and pass through unstressed components between the polarizers. The polarization-changing material changes polarization for a narrow wavelength band on the order of about 0.01×10−9 meters and does not condense on optical windows and polarizers during the operational lifetime. An aspect ratio, defined by a distance from the entrance window to the exit window divided by an optical aperture for the entrance window, is less than 4/1. This filter thus transmits light substantively unattenuated in the narrow wavelength band up to a maximum acceptance angle greater than 5 degrees. Combined with optics and imaging detectors, it is suitable for wide area surveillance, including daylight surveillance for combustion like forest fire and missile plume.

    Abstract translation: 用于过滤光的技术包括沿着中心光轴的入口窗; 第一偏振器，窄带偏振变化材料，第二偏振器和出射窗。 通过滤光器的光路实质上是不散射的，并通过偏振器之间的未受应力的部件。 偏振改变材料在约0.01×10 -9毫米量级的窄波长带上改变极化，并且在操作寿命期间不会在光学窗口和偏振器上冷凝。 由从入口窗口到出口窗口的距离除以入口窗口的光学孔径限定的纵横比小于4/1。 因此，该滤光器将窄波长带内实质上未衰减的光线发射到大于5度的最大接收角。 结合光学和成像检测器，适用于广域监控，包括日光监视，如森林火灾和导弹羽流。

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