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公开(公告)号：USD441672S1
公开(公告)日：2001-05-08
申请号：US29120552
申请日：2000-03-21
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公开(公告)号：USD439181S1
公开(公告)日：2001-03-20
申请号：US29120553
申请日：2000-03-21
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公开(公告)号：USD471829S1
公开(公告)日：2003-03-18
申请号：US29149555
申请日：2001-10-11
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4.外观设计公开(公告)号：USD439178S1
公开(公告)日：2001-03-20
申请号：US29120537
申请日：2000-03-21
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公开(公告)号：USD472831S1
公开(公告)日：2003-04-08
申请号：US29149556
申请日：2001-10-11
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公开(公告)号：US06662662B1
公开(公告)日：2003-12-16
申请号：US09564506
申请日：2000-05-04
申请人： Christina A. Nord , David A. Horky , Kenneth G. Guttsen , Thomas E. Johnson , Matthew G. Sherin , Kevin P. Szafranski , William J. Ballot , Renae M. Patrick , Donald E. Harasyn , Ryan R. Eidenschink , Todd W. Schansberg , Mark G. Romo , Steven M. Behm , Bennett L. Louwagie , Robert C. Hedtke , Stanley E. Rud, Jr. , Jeffrey C. Brekken
发明人： Christina A. Nord , David A. Horky , Kenneth G. Guttsen , Thomas E. Johnson , Matthew G. Sherin , Kevin P. Szafranski , William J. Ballot , Renae M. Patrick , Donald E. Harasyn , Ryan R. Eidenschink , Todd W. Schansberg , Mark G. Romo , Steven M. Behm , Bennett L. Louwagie , Robert C. Hedtke , Stanley E. Rud, Jr. , Jeffrey C. Brekken
IPC分类号： G01L708
CPC分类号： G01L19/0645 , G01L19/0618 , G01L19/0663
摘要： A pressure transmitter with a fluid isolator that includes a sensor tube and a fill tube that have “D” shaped ends that connect together in a port internal to the transmitter. The shaped ends can be brazed into the port for sealing. Fitting both the sensor tube and the fill tube in the same port provides a low cost isolator with reduced isolator liquid volume. The fluid isolator has an isolator diaphragm with a central diaphragm region overlying a central backing plate that includes a annular groove. The annular groove avoids slow response of the isolator after an overpressure condition.
摘要翻译： 具有流体隔离器的压力变送器，其包括传感器管和填充管，其具有在发射器内部的端口中连接在一起的“D”形端。 成型端可以钎焊到端口中进行密封。 将传感器管和填充管同时连接在同一个端口，可提供低成本的隔离器，减少隔离液体积。 流体隔离器具有隔离隔膜，隔膜隔膜具有覆盖中心背板的中心隔膜区域，该中心隔板包括环形槽。 环形槽避免了超压条件下隔离器的响应缓慢。
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公开(公告)号：US06487912B1
公开(公告)日：2002-12-03
申请号：US09519912
申请日：2000-03-07
申请人： Steven M. Behm , Richard L. Nelson , Robert Hedtke , Roger Frick , Scott D. Nelson , Mark Fandrey , Theodore H. Schnaare , Brian L. Westfield , Mark S. Schumacher , Weston Roper
发明人： Steven M. Behm , Richard L. Nelson , Robert Hedtke , Roger Frick , Scott D. Nelson , Mark Fandrey , Theodore H. Schnaare , Brian L. Westfield , Mark S. Schumacher , Weston Roper
IPC分类号： G01L900
CPC分类号： G01L19/0046 , G01D1/00 , G01L19/0084 , G01L19/0663 , G01L19/141 , H01R29/00
摘要： A pressure sensor module and method for pre-installation without a converter module. The pressure sensor module is hermetically sealed and can remain undamaged in an installation environment without a converter module. The pressure sensor module can be assembled later with a converter module in the installation environment. The pressure sensor module includes an isolator, a pressure sensor and a circuit that provides a bus for energization, control and a digital pressure output. The bus is connected to contacts in an insulating feedthrough. An integrally formed hermetic external support structure surrounds the pressure sensor and circuit. The hermetic external support structure has a threaded process fluid inlet around the isolator, and a threaded support sleeve supporting the feedthrough.
摘要翻译： 压力传感器模块和方法，用于在没有转换器模块的情况下预安装。 压力传感器模块是密封的，并且可以在没有转换器模块的安装环境中保持不损坏。 以后可以在安装环境中使用转换器模块组装压力传感器模块。 压力传感器模块包括隔离器，压力传感器和提供用于通电，控制和数字压力输出的总线的电路。 总线连接到绝缘馈通中的触点。 整体形成的密封外部支撑结构围绕压力传感器和电路。 密封的外部支撑结构具有围绕隔离器的螺纹过程流体入口和支撑馈通的螺纹支撑套筒。
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公开(公告)号：US5006227A
公开(公告)日：1991-04-09
申请号：US371986
申请日：1989-06-26
CPC分类号： B07B7/00 , G01N1/2208 , G05D7/0658 , G01N2001/2223 , G01N2001/242
摘要： A volumetric flow controller is used in connection with a virtual impactor classifier to control two separate flows in separate lines from an air pump. Each line has a flow control valve controlled in response to flow signals that are obtained from a pressure transducer that provides an electrical signal proportional to pressure. Pressure changes are sensed and the provided electrical signal is compared with a reference and will actuate a damper motor and move a flow control butterfly valve in the flow line for adjusting the flow when the pressure signal is different from the reference. The circuitry used provides for a dead band, so that changes in the butterfly valve setting will not occur unless the flow varies a selected amount, and also a timer control is used so that the motor operating the damper will be operated only at selected time intervals to prevent "hunting" or continuous operation of the valves. Further, temperature compensation signals can be provided as desired. The ability to control the flow volume provides for more accurate aerosol sampling and cut off points for the size of particles being sampled.
摘要翻译： 体积流量控制器与虚拟冲击器分级器结合使用，以控制与气泵分离的两条独立流。 每条管线都具有响应于从提供与压力成正比的电信号的压力传感器获得的流量信号而控制的流量控制阀。 感测到压力变化，并且将所提供的电信号与参考值进行比较，并且将致动阻尼电机并且在流动管线中移动流量控制蝶阀，以在压力信号不同于参考值时调节流量。 所使用的电路提供死区，因此除非流量改变所选择的量，否则蝶阀设置的变化将不会发生，并且还使用定时器控制，以便仅在选定的时间间隔内操作阻尼器的电机 以防止“狩猎”或连续操作阀门。 此外，可以根据需要提供温度补偿信号。 控制流量的能力提供了更精确的气溶胶取样和切割点，以便取样颗粒的大小。
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公开(公告)号：US06457367B1
公开(公告)日：2002-10-01
申请号：US09671495
申请日：2000-09-27
申请人： Steven M. Behm , Dale S. Davis , Mark C. Fandrey , Roger L. Frick , Robert C. Hedtke , Richard L. Nelson , Scott D. Nelson , Weston Roper , Theodore H. Schnaare , John P. Schulte , Mark S. Shumacher
发明人： Steven M. Behm , Dale S. Davis , Mark C. Fandrey , Roger L. Frick , Robert C. Hedtke , Richard L. Nelson , Scott D. Nelson , Weston Roper , Theodore H. Schnaare , John P. Schulte , Mark S. Shumacher
IPC分类号： G01L900
CPC分类号： G01D1/00 , G01L13/026 , G01L19/0084 , G01L19/0663 , G01L19/069 , G01L19/083 , H01R13/527 , H01R29/00 , Y10S439/912 , Y10T29/49002
摘要： A scalable process transmitter architecture includes a unitized sensor module and an optional scalable transmitter. The sensor module has a sensor output that is configurable which can connect locally to a scalable transmitter module to form a transmitter, or can be wired directly to a remote receiver. The scalable transmitter can mount on the unitized sensor module and generates a scalable output for a remote receiver. The transmitter module can provide more advanced features for specific applications.
摘要翻译： 可扩展的过程变送器架构包括一个单元化的传感器模块和一个可选的可扩展发射器。 传感器模块具有可配置的传感器输出，其可以本地连接到可扩展发射器模块以形成发射器，或者可以直接连接到远程接收器。 可扩展的发射机可以安装在单元化的传感器模块上，并为远程接收机生成可扩展的输出。 发射机模块可以为特定应用提供更高级的功能。
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公开(公告)号：US5922965A
公开(公告)日：1999-07-13
申请号：US67601
申请日：1998-04-28
申请人： Steven M. Behm , Jeffrey C. Brekken
发明人： Steven M. Behm , Jeffrey C. Brekken
CPC分类号： G01L13/026 , G01L19/0038 , G01L19/0645 , G01L19/0663
摘要： A process control instrument adapted to provide an output indicative of a parameter of a process fluid is disclosed. The process control instrument is designed to be attachable to a flange having a first passageway filled with process fluid. A body of the process control instrument has an opening adjacent to the first passageway adapted to receive process fluid from the first passageway. An isolation diaphragm is positioned in the opening of the body and separates the opening and the first passageway from a second passageway. A weld ring positioned in the opening is adapted to evenly distribute an attachment force across a support surface such that damage to the isolation diaphragm is minimized.
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