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    FREQUENCY FEEDBACK ON A CURRENT LOOP OF A CURRENT-TO-PRESSURE CONVERTER
    1.
    发明申请
    FREQUENCY FEEDBACK ON A CURRENT LOOP OF A CURRENT-TO-PRESSURE CONVERTER 审中-公开
    电流 - 压力转换器的电流环路上的频率反馈

    公开(公告)号：WO1988002509A1

    公开(公告)日：1988-04-07

    申请号：PCT/US1987002382

    申请日：1987-09-21

    Applicant: ROSEMOUNT INC.

    Inventor： ROSEMOUNT INC. ,  BROWN, Gregory, C. ,  CUCCI, Gerald, R.

    IPC: G05D16/00

    CPC classification number: G05D7/005 ,  Y10T137/2365 ,  Y10T137/2409 ,  Y10T137/7759 ,  Y10T137/7761

    Abstract: A current-to-pressure (I/P) converter (20) provides an output pressure as a function of the magnitude of a variable input DC current. The I/P converter (20) includes a pressure sensor (64) which produces a feedback signal representative of the output pressure. Based upon the feedback signal and the magnitude of the input DC current, an electrical control signal is produced which controls a device (40) for varying the output pressure. The I/P converter (20) also includes a circuit (86) for generating a time-varying signal which is sent back over the current loop wires (28) through which the input DC current flows. The time-varying signal provides an indication of whether the I/P converter (20) is functioning properly. This permits diagnosis of possible causes of control system malfunctions without having to inspect the I/P converter (20) itself.

    ELECTRIC SIGNAL TO PRESSURE SIGNAL TRANSDUCER
    2.
    发明申请
    ELECTRIC SIGNAL TO PRESSURE SIGNAL TRANSDUCER 审中-公开
    电信号用于压力信号传导器

    公开(公告)号：WO1985001133A1

    公开(公告)日：1985-03-14

    申请号：PCT/US1984001374

    申请日：1984-08-28

    Applicant: ROSEMOUNT INC.

    Inventor： ROSEMOUNT INC. ,  BROWN, Gregory, C.

    IPC: G05D16/00

    CPC classification number: F15C3/14 ,  F15B5/003 ,  Y10T137/2322 ,  Y10T137/2365 ,  Y10T137/7761

    Abstract: An electric signal to pneumatic signal transducer (10) comprises a nozzle (12) that accepts an input pneumatic supply and expels a gas stream (20). A receiver (16) that is spaced from the nozzle (12) is positioned to recover at least a portion of the gas stream (20). The recovered portion constitutes a pneumatic output signal (Pout). The position of a deflector (14) relative to the gas stream (20) is controlled by an electric input signal (Iin) to aerodynamically deflect the gas stream (20) expelled from the nozzle (12). The aerodynamic deflection affects the magnitude of the portion of the gas stream (20) recovered by the receiver (16) in a manner having a known relationship to the electric input signal, thereby generating a pneumatic output signal responsive to the electric input signal.

    APPARATUS TO CONTROL FLUID FLOW
    3.
    发明申请
    APPARATUS TO CONTROL FLUID FLOW 审中-公开
    控制流体流量的装置

    公开(公告)号：WO2010065754A1

    公开(公告)日：2010-06-10

    申请号：PCT/US2009/066605

    申请日：2009-12-03

    Applicant: FISHER CONTROLS INTERNATIONAL LLC ,  LOVELL, Michael, Ken

    Inventor： LOVELL, Michael, Ken

    IPC: F15B13/04

    CPC classification number: F15B13/0405 ,  Y10T137/2365 ,  Y10T137/2409 ,  Y10T137/7378

    Abstract: Apparatus to control a fluid flow are disclosed. An example fluid flow control apparatus described herein includes a signal stage comprising a signal stage relay having a supply plug being operatively connected to a valve seat at a first end and an exhaust seat at a second end and a seal operatively coupled to the supply plug such that the seal provides a feedback area to apply a fluid pressure feedback force to the exhaust seat.

    Abstract translation: 公开了用于控制流体流动的装置。 本文描述的示例性流体流量控制装置包括信号级，该信号级包括信号级继电器，该信号级继电器具有在第一端可操作地连接到阀座的供电插头和在第二端处的排气座，以及可操作地耦合到电源插头的密封件 密封件提供反馈区域以将流体压力反馈力施加到排气座。

    MODULAR PRESSURE INSTRUMENT
    5.
    发明申请
    MODULAR PRESSURE INSTRUMENT 审中-公开
    模块式压力仪表

    公开(公告)号：WO1988009533A1

    公开(公告)日：1988-12-01

    申请号：PCT/US1988001075

    申请日：1988-03-30

    Applicant: ROSEMOUNT INC.

    Inventor： ROSEMOUNT INC. ,  BROWN, Gregory, C.

    IPC: G05D16/00

    CPC classification number: G01L19/14 ,  Y10T137/2365 ,  Y10T137/7504 ,  Y10T137/87885

    Abstract: A modular transmitter (10) has an outer housing (11) with a wall (12) forming an interior cavity (13) in which a control module is inserted. The wall (12) has one or more ports (37, 41) therein that are connected to pressure conduits. When the control module (25) is fully seated, the ports (37, 41) aligned with internal passageways (50, 51) in the control module (25) that lead to control components (46, 47) in the control module (25). The control module (25) further has an electrical circuit (70) supported on an end thereof that is toward the inner end of the cavity (13) when the control module (25) is inserted and the circuit has components (74, 75, 80) that removably mate with further elements (86, 87) mounted on the end wall (14) of the cavity (13). These connections may include electrical contacts (80), and also rotationally adjustable components (74, 75, 80) that have set points and which are coupled to set point adjustment and control shafts (86, 87) that are accessible from the opposite side of the end wall (14) from the cavity (13). The coupling (82, 83) to the rotatable shafts permits not only rotationally driving the circuit components, but also accommodates some offset or misalignment between the two parts. Preferably, the coupling (82, 83) is a hook and loop type fastener that has two portions which can be separated in an axial direction, and will easily recouple for driving.

    INSTALLATION AND PROCESS FOR LUBRICATING, CLEANING AND/OR DISINFECTING CONVEYOR BELTS
    8.
    发明申请
    INSTALLATION AND PROCESS FOR LUBRICATING, CLEANING AND/OR DISINFECTING CONVEYOR BELTS 审中-公开
    系统和方法润滑，清洁和/或消毒运输BANDS

    公开(公告)号：WO1995008498A1

    公开(公告)日：1995-03-30

    申请号：PCT/EP1994003078

    申请日：1994-09-14

    Applicant: HENKEL-ECOLAB GMBH & CO. OHG ,  HANTMANN, Bernhard

    Inventor： HENKEL-ECOLAB GMBH & CO. OHG

    IPC: B65G45/02

    CPC classification number: B65G45/22 ,  B65G45/02 ,  Y10T137/0329 ,  Y10T137/0352 ,  Y10T137/2278 ,  Y10T137/2365 ,  Y10T137/2501 ,  Y10T137/2572

    Abstract: A central metering station connectable to a water pipe is used to dilute a concentrated lubricant, cleaner or disinfectant. Several distribution lines connected to the metering station lead to the points of use. At each point of use there are a mixing valve (13 - 19) connectable to the distribution line (52) and the water pipe (23) and individually adjustable for each point of use and a pressure reducer (50, 51) fitted upstream of each mixing valve. Varying concentration can be provided for each point of use (31 - 37) with little technical complexity.

    Abstract translation: 中央，可连接到一个水管给药被用于稀释润滑剂，洗涤剂或消毒剂浓缩物。 几个，连接到定量给料配电线路导致的位置。 是在工作中，一到配电线（52）和去水管线（23）连接为每个位置混合阀（13-19），并且每个混合阀上游减压器（50，51）可单独调节的设置。 用很少的努力是每个位置（31-37）不同浓度的可能。

    ELECTROPNEUMATIC POSITIONER
    9.
    发明申请
    ELECTROPNEUMATIC POSITIONER 审中-公开
    电子定位器

    公开(公告)号：WO1992022860A1

    公开(公告)日：1992-12-23

    申请号：PCT/US1992004692

    申请日：1992-06-10

    Applicant: DRESSER INDUSTRIES, INC.

    Inventor： DRESSER INDUSTRIES, INC. ,  PRESCOTT, Robert, C. ,  SIMPSON, Donald, C. ,  SANFORD, Philip, H. ,  NUDD, Howard, W.

    IPC: G05D16/20

    CPC classification number: H01F7/145 ,  F15B5/003 ,  Y10T137/2278 ,  Y10T137/2365

    Abstract: A transducer having an explosion-proof housing (202) with a divider (204) forming two compartments, and the divider having formed therein a well (206). A magnet (120) and flapper arm (124) arrangement is suspended within the well. A coil winding (208) is fixed in the other compartment around the well so that a magnetic field generated thereby influences the pivotal position of the magnet. Set screws (254) adjustable in the bottom of the well are effective to preset a rest position of the magnet.

    Abstract translation: 一种具有防爆壳体（202）的换能器，其具有形成两个隔室的分隔器（204），并且所述分隔器在其中形成有井（206）。 磁体（120）和挡板臂（124）布置悬挂在井内。 一个线圈绕组（208）被固定在另一个隔室周围，使得由此产生的磁场影响磁体的枢转位置。 在井底可调的固定螺丝（254）有效预设磁铁的静止位置。

    DUAL MODE PNEUMATIC CONTROL SYSTEM
    10.
    发明申请
    DUAL MODE PNEUMATIC CONTROL SYSTEM 审中-公开
    双模气动控制系统

    公开(公告)号：WO1991006898A1

    公开(公告)日：1991-05-16

    申请号：PCT/US1990006319

    申请日：1990-10-31

    Applicant: JOHNSON SERVICE COMPANY

    Inventor： JOHNSON SERVICE COMPANY ,  KAUTZ, Thomas, O.

    IPC: G05B11/54

    CPC classification number: G05D23/1925 ,  F24F11/83 ,  F24F11/89 ,  F24F13/08 ,  Y10T137/0396 ,  Y10T137/2365

    Abstract: This invention relates to a pneumatic control device having an operating mode selecting means for operating in either the manual or automatic modes. Pneumatic pressure is regulated in the manual mode by a hand operated leakport, and in the automatic mode by a voice coil or other pressure regulating device. The pneumatic input supply, manual pressure regulating means and voice coil all communicate at a common surface. The mode selecting means slides across this common surface to connect together the pneumatic input supply with one of the selected pressure regulating means.

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