公开(公告)号：US06242909B1

公开(公告)日：2001-06-05

申请号：US09417369

申请日：1999-10-13

申请人： Edward Dorsey ,  Kevin Gardiner ,  Drew LaMarca

发明人： Edward Dorsey ,  Kevin Gardiner ,  Drew LaMarca

IPC分类号： G01B730

CPC分类号： F16K37/0041 ,  Y10T137/8275

摘要： A visual position indicator has a stator and a rotor with angularly displaced eccentricities for engaging corresponding spring biased actuators with magnets. Depending on the rotor position relative to the stator, one or more of the actuators is moved to a position whereat the field of its respective magnet can operate a magnetic switch disposed in a hermetically sealed housing. A decoder connected to the switches can produce a signal indicative of rotor position.

摘要翻译： 视觉位置指示器具有定子和转子，其具有角度偏移的偏心，用于接合具有磁体的相应的弹簧偏置致动器。 取决于相对于定子的转子位置，一个或多个致动器被移动到其各自磁体的磁场可以操作设置在密封壳体中的磁性开关的位置。 连接到开关的解码器可以产生指示转子位置的信号。

公开(公告)号：US06968851B2

公开(公告)日：2005-11-29

申请号：US10120899

申请日：2002-04-11

申请人： James Ramirez ,  Edward Dorsey ,  Thomas Zich ,  Dennis Wagner

发明人： James Ramirez ,  Edward Dorsey ,  Thomas Zich ,  Dennis Wagner

IPC分类号： F16K1/44 ,  F16K37/00 ,  F16K51/02 ,  F16K11/20

CPC分类号： F16K51/02 ,  F16K1/446 ,  F16K37/00 ,  F16K37/0091 ,  Y10T137/0318 ,  Y10T137/5762 ,  Y10T137/8326 ,  Y10T137/86083 ,  Y10T137/88046

摘要： A double block valve and a valve proving system are disclosed. The double block valve is actuated by a single actuator and includes a valve body housing a cavity. The cavity defines an upstream portion with a fluid inlet and a downstream portion with a fluid outlet. A seating assembly is interposed between the upstream and the downstream portions. A first and a second blocking element are disposed in the valve body and are both movable within the cavity between opened and closed positions. With the first and second blocking elements both contacting the seating assembly, the space therebetween defines an enclosed space with a finite volume. The proving system is used for two safety shut-off valves on a valve train, such as a double block valve. The proving system connects to an enclosed space established between the two safety shut-off valves and includes a pair of three-way valves, oppositely biased pressure switches, and a pump, all of which are interconnected through pneumatic conduits. The proving system uses pressure accumulation and timed decay to determine the integrity of the two safety shut-off valves of the valve train.

摘要翻译： 公开了一种双截止阀和阀门检验系统。 双块阀由单个致动器致动并且包括容纳空腔的阀体。 空腔限定具有流体入口的上游部分和具有流体出口的下游部分。 在上游部分和下游部分之间插入座位组件。 第一和第二阻塞元件设置在阀体中，并且均可在打开位置和关闭位置之间的空腔内移动。 利用第一和第二阻挡元件两者接触座部组件，其间的空间限定了具有有限体积的封闭空间。 验证系统用于阀门上的两个安全截止阀，例如双块阀。 证明系统连接到两个安全截止阀之间建立的封闭空间，并包括一对三通阀，相对偏压的压力开关和一个泵，所有这些通过气动导管互连。 验证系统使用压力累积和定时衰减来确定气门机构的两个安全截止阀的完整性。