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    • 5. 发明授权
    • Double lid system
    • 双盖系统
    • US5857308A
    • 1999-01-12
    • US912309
    • 1997-07-14
    • Timothy John DismoreDonald John Michael Drew
    • Timothy John DismoreDonald John Michael Drew
    • G21F5/12G21F7/005B65B7/28B65B43/40
    • G21F5/12G21F7/005
    • A double lid system is provided with an electric motor (44) to actuate mechanisms to release the lid (20) from a drum (18) and simultaneously clamp the lid (20) to a door (14) of a port (or vice versa), and with an electric motor (74) to withdraw the door (14) from the port to open the port (or to close it). The system is monitored by sensors (60,62,64,82) associated with an electronic logic interlock to ensure the correct sequence of operations of the motors (44,74). The sensors (60,62,64,82) and the motors (44,74) are readily demountable for remote maintenance or replacement. The door-opening motor (74) may he a linear actuator cooperating with a part-helical slot (80) to open the door (14) and then swing it clear of the port.
    • 双盖系统设置有电动机(44)以致动机构,以将盖(20)从滚筒(18)释放,同时将盖(20)夹在端口的门(14) )和电动马达(74)从门口抽出门(14)以打开端口(或关闭)。 传感器(60,62,64,82)由与电子逻辑互锁相关联的传感器(60,62,64,82)进行监控,以确保电动机(44,74)的正确操作顺序。 传感器(60,62,64,82)和电动机(44,74)易于拆卸以用于远程维护或更换。 开门电动机(74)可以是与部分螺旋槽(80)协作以打开门(14)并且然后将其摆脱端口的线性致动器。
    • 7. 发明授权
    • Ultrasonic inspection
    • 超声波检查
    • US6105431A
    • 2000-08-22
    • US945852
    • 1997-11-07
    • Colin DuffillMaurice Geoffrey Silk
    • Colin DuffillMaurice Geoffrey Silk
    • G01N29/11G01N29/04
    • G01N29/11G01N29/2487G01N29/343G01N2291/0422G01N2291/0423G01N2291/044G01N2291/057G01N2291/102G01N2291/2632
    • A plate (12) or pipe wall is inspected by coupling an ultrasonic transducer (14, 16) to its surface so as to generate a compression wave or lateral wave (26) along the surface and a shear wave or head wave (28) along the surface and a shear wave or head wave (28) at the shear-compression critical angle (.theta..sub.c) The same transducer (14, 16), or an additional transducer (15, 16) also coupled to the surface, detects a series of ultrasonic peaks corresponding to each generated ultrasonic pulse. Each such detected peak corresponds to ultrasonic energy traveling, partly as lateral waves (26, 32) on one surface or the other, and partly as head waves (28, 30) crossing a certain number of times between the surfaces. The transducers (14, 15) may be over 0.5 m apart, and substantially all the intervening parts of the plate (12) are inspected.
    • PCT No.PCT / GB96 / 01078 Sec。 371日期:1997年11月7日 102(e)日期1997年11月7日PCT提交1996年5月7日PCT公布。 出版物WO96 / 36874 日期1996年11月21日通过将超声波换能器(14,16)耦合到其表面来检查板(12)或管壁,以便沿着表面产生压缩波或横波(26),并且产生剪切波或头 沿着表面的波(28)和剪切波或头波(28)处于剪切压缩临界角(θc)。相同的换能器(14,16)或附加的换能器(15,16)也耦合到 表面,检测与每个产生的超声波脉冲相对应的一系列超声峰。 每个这样的检测到的峰值对应于在一个表面上或另一个上部分地作为横向波(26,32)行进的超声波能量,并且部分地作为在两个表面之间穿过一定次数的头波(28,30)。 换能器(14,15)可以相隔超过0.5m,并且检查板(12)的基本上所有的中间部分。