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公开(公告)号：US4174728A
公开(公告)日：1979-11-20
申请号：US851330
申请日：1977-11-14
IPC分类号： F16K3/20
CPC分类号： F16K3/205 , Y10T137/4259
摘要： This invention is a novel valve of the slidable-gate type. The valve is designed especially for long-term use with highly abrasive slurries. The sealing surfaces of the gate are shielded by the valve seats when the valve is fully open or closed, and the gate-to-seat clearance is swept with an inflowing purge gas while the gate is in transit.A preferred form of the valve includes an annular valve body containing an annular seat assembly defining a flow channel. The seat assembly comprises a first seat ring which is slidably and sealably mounted in the body, and a second seat ring which is tightly fitted in the body. These rings cooperatively define an annular gap which, together with passages in the valve body, forms a guideway extending normal to the channel. A plate-type gate is mounted for reciprocation in the guideway between positions where a portion of the plate closes the channel and where a circular aperture in the gate is in register with the channel.The valve casing includes opposed chambers which extend outwardly from the body along the axis of the guideway to accommodate the end portions of the gate. The chambers are sealed from atmosphere; when the gate is in transit, purge gas is admitted to the chambers and flows inwardly through the gate-to-seat-ring, clearance, minimizing buildup of process solids therein. A shaft reciprocated by an external actuator extends into one of the sealed chambers through a shaft seal and is coupled to an end of the gate. Means are provided for adjusting the clearance between the first seat ring and the gate while the valve is in service.
摘要翻译： 本发明是一种新型的可滑门式阀。 阀门专门设计用于长期使用高磨蚀性浆料。 当阀门完全打开或关闭时，门的密封表面被阀座屏蔽，并且门在运输过程中通过流入的吹扫气体扫过门到座的间隙。 阀的优选形式包括环形阀体，其包含限定流动通道的环形座组件。 座椅组件包括可滑动和可密封地安装在主体中的第一座环，以及紧密地装配在身体中的第二座环。 这些环协调地限定一个环形间隙，其与阀体中的通道一起形成垂直于通道延伸的导轨。 板式门被安装用于在导轨中在板的一部分关闭通道的位置和门的圆形孔与通道对准的位置之间往复运动。 阀壳体包括相对的腔室，其沿着导轨的轴线从主体向外延伸以容纳门的端部。 室内气氛密封; 当闸门处于运输状态时，吹扫气体被允许进入腔室并向内流过门到座环，间隙，从而最小化其中过程固体的累积。 由外部致动器往复运动的轴通过轴密封件延伸到一个密封室中，并且连接到门的端部。 提供了用于在阀正在使用时调节第一阀座环和阀门之间的间隙的装置。
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公开(公告)号：US20120294604A1
公开(公告)日：2012-11-22
申请号：US13467458
申请日：2012-05-09
申请人： James W. Roberts
发明人： James W. Roberts
IPC分类号： H04B10/16
CPC分类号： H04J14/0291 , H04J14/0201 , H04J14/0227 , H04J14/0283 , H04J14/0284
摘要： An optical transmission system or its constituent repeater disposed optically between two terminals. The system includes at least two parallel optical paths between a first node and the repeater (one optical path being used as a backup for another), and another at least two parallel optical paths between a second node and the repeater (again, one optical path being used as a backup for another). The first nodes may, but need not, be terminals, but could also be repeaters, or other optical elements. For a signal traveling from the first terminal to the second terminal, the optical switching mechanism detects which of the at least two parallel optical paths an optical signal is being received from the first node, and channels the optical signal to at least one of the parallel optical paths leading from the repeater to the second node.
摘要翻译： 光传输系统或其组成中继器在两个终端之间光学布置。 该系统包括在第一节点和中继器之间的至少两个并行光路径（一个光路被用作另一光路的备用），以及在第二节点和中继器之间的另一至少两个并行光路径（再次，一个光路 被用作另一个的备份）。 第一节点可以但不是必须是终端，但是也可以是中继器或其他光学元件。 对于从第一终端行进到第二终端的信号，光切换机构检测至少两个平行光路中的哪一个正在从第一节点接收到光信号，并将光信号传送到至少一个并行 从中继器引导到第二节点的光路。
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3.发明授权High speed defect detection apparatus having defect detection circuits mounted in the camera housing 失效具有安装在摄像机壳体中的缺陷检测电路的高速缺陷检测装置
公开(公告)号：US5440648A
公开(公告)日：1995-08-08
申请号：US794861
申请日：1991-11-19
CPC分类号： G06T7/0006 , G01N21/8851 , G01N21/8903 , G06T2207/10021 , G06T2207/30124
摘要： A defect detection system includes a video camera with defect detection circuits for detecting defects in video signals being outputted by corresponding sections of an array sensor such as a TDI CCD two-dimensional array sensor. Each defect detection circuit includes a subtraction circuit for subtracting a prior stored pixel from an incoming pixel to generate a difference. Comparators compare the difference with positive and negative limits defining an acceptable range of difference values. The prior stored pixel is updated to the succeeding pixel only when the difference value is acceptable. Memories store the defect pixels from the respective detection circuits along with X-coordinates and end of line bits. The memories are sequentially read up to their end of line bits, and the defect pixel values along with coordinates expanded to include section indicating bits are transferred from the camera to further processing facilities.
摘要翻译： 缺陷检测系统包括具有用于检测诸如TDI CCD二维阵列传感器的阵列传感器的相应部分输出的视频信号中的缺陷的缺陷检测电路的摄像机。 每个缺陷检测电路包括用于从输入像素中减去先前存储的像素以产生差值的减法电路。 比较者将差异与定义可接受的差值范围的正和负极限进行比较。 仅当差值可接受时，先前存储的像素被更新为后续像素。 存储器存储来自相应检测电路的缺陷像素以及X坐标和行尾位。 存储器被顺序读取到它们的行末端位置，并且缺陷像素值以及被扩展以包括指示位的部分的位置从相机传送到另外的处理设施。
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公开(公告)号：US5185605A
公开(公告)日：1993-02-09
申请号：US788818
申请日：1991-11-07
IPC分类号： H04B13/02
CPC分类号： H04B13/02 , Y10S367/91
摘要： A dive profile recorder for monitoring conditions encountered by a diver under water includes a plurality of transducers to be carried by a diver for generating electrical signals representative of the conditions encountered by the diver. Encoding circuitry electrically connected to the transducers encodes the electrical signals to form a serial data stream and a transmitter electrically connected to the encoding circuitry transmits the serial data stream through the water. A receiver remote from the diver receives the transmitted serial data stream and decoding circuitry electrically connected to the receiver decodes the serial data stream to electrical signals representative of the conditions encountered by the diver. A display electrically connected to the decoding circuitry receives the electrical signals and displays human-perceptible indicia of the conditions encountered by the diver in response to the received electrical signals.
摘要翻译： 用于监测潜水员在水下遇到的状况的潜水简档记录器包括由潜水员承载的多个换能器，用于产生代表潜水员遇到的状况的电信号。 电连接到换能器的编码电路对电信号进行编码以形成串行数据流，并且电连接到编码电路的发射器通过水传输串行数据流。 远离潜水员的接收器接收传送的串行数据流，并且电连接到接收器的解码电路将串行数据流解码为代表潜水员遇到的状况的电信号。 电连接到解码电路的显示器接收电信号并且响应于所接收的电信号显示潜在者遇到的状况的人感知标记。
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