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    Automatic alignment of cathode ray tube video displays in local magnetic fields
    73.
    发明授权
    Automatic alignment of cathode ray tube video displays in local magnetic fields 失效
    阴极射线管视频显示在局部磁场中自动对准

    公开(公告)号：US6130505A

    公开(公告)日：2000-10-10

    申请号：US908623

    申请日：1997-08-08

    Applicant: James R. Webb ,  Ron C. Simpson

    Inventor： James R. Webb ,  Ron C. Simpson

    IPC: H01J9/44 ,  H04N9/29 ,  H01J29/54

    CPC classification number: H04N9/29 ,  H01J9/44

    Abstract: A system and method for dynamic adjustment of video images on a cathode ray tube in diverse geographic local magnetic fields. The present invention uses a CRT magnetometer that accurately senses differences in the strength and direction of a local magnetic field in three axes, i.e., the x, y, and z axes. The cathode ray tube includes a digital monitor board or monitor circuitry that has a processor and memory and is capable of retrieving correction factor data and magnetic correction data generated by a vision system. The digital monitor board receives CRT magnetometer signals and uses the signals with magnetic correction data to adjust the correction factor data to generate locale specific correction factor data for the sensed local magnetic field. The digital monitor board is capable of decoding the locale specific correction factor data using DACs, PDMs, PWMs, and interpolation engines to generate correction signals that are used to adjust the video image to correct for magnetically induced distortion.

    Abstract translation: 用于在不同地理局部磁场中在阴极射线管上动态调整视频图像的系统和方法。 本发明使用CRT磁力计，其精确地感测三个轴，即x，y和z轴的局部磁场的强度和方向的差异。 阴极射线管包括具有处理器和存储器并且能够检索由视觉系统产生的校正因子数据和磁校正数据的数字监视器板或监视器电路。 数字监控板接收CRT磁力计信号，并使用具有磁校正数据的信号来调整校正因子数据，以生成感测到的局部磁场的特定区域校正因子数据。 数字监视器板能够使用DAC，PDM，PWM和内插引擎来解码特定区域校正因子数据，以产生用于调整视频图像以校正磁感应失真的校正信号。

    Gate valve for controlling the flow of viscous liquids
    76.
    发明授权
    Gate valve for controlling the flow of viscous liquids 失效
    用于控制粘性液体流动的闸阀

    公开(公告)号：US5667198A

    公开(公告)日：1997-09-16

    申请号：US477988

    申请日：1995-06-07

    Applicant: Alexander Robert Sawicki ,  Edward R. Webb

    Inventor： Alexander Robert Sawicki ,  Edward R. Webb

    IPC: F16K3/06 ,  F16K1/16

    CPC classification number: F16K3/06

    Abstract: A pivoting gate valve assembly includes a seat plate with an orifice therethrough, a stop plate and a gate. The stop plate is mounted on the seat plate and borders a portion of the orifice. The gate is pivotably mounted to the seat plate and pivots to a closed position against the stop plate and covering the orifice. The gate and the stop plate form a substantially flush contiguous surface when in the closed position.

    Abstract translation: 枢转闸阀组件包括具有贯穿其中的孔口的座板，止动板和闸门。 止动板安装在座板上并与孔口的一部分相接。 门可枢转地安装到座板上，并且枢转到抵靠止挡板的关闭位置并覆盖孔口。 当处于关闭位置时，闸门和挡板形成基本上齐平的邻接表面。

    Correction for monitor refraction using empirically derived data
    77.
    发明授权
    Correction for monitor refraction using empirically derived data 失效
    使用经验派生数据修正监视器折射

    公开(公告)号：US5657079A

    公开(公告)日：1997-08-12

    申请号：US617322

    申请日：1996-03-18

    Applicant: James E. Thario ,  James R. Webb

    Inventor： James E. Thario ,  James R. Webb

    IPC: H04N17/04

    CPC classification number: H04N17/04

    Abstract: A system for transforming coordinate systems in an automated video monitor alignment system includes a camera and computer to capture an image of the display bezel surrounding the cathode ray tube and of the image displayed on the CRT. Three dimensional models of the CRT tube and display bezel are used to compute and compensate for camera perspective. Camera pixel data can then be transformed to `flat plane` coordinates. When the relative orientation of the camera and CRT are corrected, the effects of parallax can be eliminated, allowing more accurate inspection, measurement, and lower cost fixturing on the production line. Thus, an accurate coordinate transformation from a camera-referenced coordinate system to a monitor-referenced coordinate system is made. Correction factors for correcting errors due to refraction can also be generated empirically in accordance with the present invention. Slope coordinate data is generated for a sample monitor for predetermined slope coordinate locations on the tube face. Correction signals can be generated from the slope coordinate data and measured tilt angles of the monitor relative to the vision system. Two dimensional interpolation techniques can be employed to provide slope coordinate values and correction signals for video signals that do not physically match the location of the slope coordinate locations of the sample monitor.

    Abstract translation: 用于在自动视频监视器对准系统中变换坐标系的系统包括摄像机和计算机，用于捕获围绕阴极射线管的显示器框架和CRT上显示的图像的图像。 CRT管和显示屏的三维模型用于计算和补偿相机视角。 摄像机像素数据可以被转换为“平面”坐标。 当相机和CRT的相对方向被校正时，可以消除视差的影响，从而允许在生产线上更准确地检查，测量和降低成本。 因此，进行从相机参考坐标系到监视器参考坐标系的精确坐标变换。 根据本发明也可以经验地产生用于校正由于折射引起的误差的校正因子。 对于管面上的预定斜率坐标位置，针对样本监视器产生斜率坐标数据。 可以从倾斜坐标数据和监视器相对于视觉系统的测量倾斜角度生成校正信号。 可以采用二维插值技术来提供不与样本监视器的斜率坐标位置物理匹配的视频信号的斜率坐标值和校正信号。

    Pipe coupling
    79.
    发明授权
    Pipe coupling 失效
    管接头

    公开(公告)号：US5351997A

    公开(公告)日：1994-10-04

    申请号：US988114

    申请日：1993-01-26

    Applicant: Ian R. Webb ,  William Taylor ,  Neil J. T. Taylor

    Inventor： Ian R. Webb ,  William Taylor ,  Neil J. T. Taylor

    IPC: F16L21/00 ,  F16L21/06 ,  F16L17/00

    CPC classification number: F16L17/04 ,  F16L21/005 ,  F16L21/08

    Abstract: A pipe coupling for connecting together two plain-ended pipes in a fluid-tight manner comprises an outer tubular casing, an inner tubular casing and a tubular sealing sleeve. The sealing sleeve has two sets of inwardly projecting ribs which, in use, are pressed into sealing engagement with the respective ends of the pipes. The inner and outer casings are longitudinally split and tensioning screws on the outer casing can be tightened to tighten the outer casing around the inner casing and the sealing sleeve. Frustoconical slots in the outer surfaces of the sealing sleeves receive frustoconical gripping rings which have gripping teeth on the inner sides which bite into the pipe surfaces to secure the pipes against axial displacement.

    Abstract translation: PCT No.PCT / GB91 / 01232 Sec。 371日期：1993年1月26日 102（e）日期1993年1月26日PCT提交1991年7月23日PCT公布。 出版物WO92 / 02752 日本1992年2月20日。用于将流体密封的两根平口管连接在一起的管接头包括外管状外壳，内管状外壳和管状密封套。 密封套具有两组向内突出的肋，其在使用中被压入与管的相应末端密封接合。 内壳和外壳是纵向分开的，外壳上的张紧螺钉可以被紧固，以使外壳围绕内壳和密封套紧固。 在密封套管的外表面的截头锥形狭槽容纳截头圆锥形夹紧环，其在内侧具有咬合齿，咬入管表面以固定管道以防轴向移动。

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