Plastic valve with flexible tube and tube squeezing apparatus
    3.
    发明授权
    Plastic valve with flexible tube and tube squeezing apparatus 失效
    塑料阀带柔性管和管挤压装置

    公开(公告)号:US5297773A

    公开(公告)日:1994-03-29

    申请号:US92690

    申请日:1993-07-16

    IPC分类号: F16K7/06 F16K7/00

    CPC分类号: F16K7/063

    摘要: A plastic valve comprising a valve body, integral plastic valving duct means with rigid tubular plastic end portions for attachment to flow ducts carrying liquids to be valved, and a collapsible and distensible tubular plastic valving portion welded to the tubular end portions, the valving portion have sidewalls of plastic film laminae free of each other, but welded to each other at edges to form resilient side rib portions, squeezing linkages traversing flexible wall portions and applying squeezing pressure onto the flexible wall portions to close the flow passage therebetween, tiltable squeeze bars extending along the flexible wall adjacent the squeezing linkages and progressively deforming the flexible wall portions during application of squeezing pressure, camming impeller portions applying and relieving squeezing pressure against the squeezing linkages and squeeze bars and camming against the camming surfaces of the body portion as a driving head moves the impeller portions in the valve body portion.

    摘要翻译: 一种塑料阀,包括阀体,整体塑料阀门管道装置,其具有刚性管状塑料端部部分,用于附接到承载要被阀的液体的流动管道,以及焊接到管状端部的可收缩且可扩张的管状塑料阀门部分,阀部分 塑料膜层的侧壁彼此不相互接触,但是在边缘处彼此焊接以形成弹性侧肋部分,挤压穿过柔性壁部分的连杆并将压力施加到柔性壁部分上以封闭其间的流动通道,可倾斜的挤压杆延伸 沿着邻近挤压连杆的柔性壁并且在施加挤压压力期间使柔性壁部分逐渐变形,凸轮叶轮部分将挤压压力施加并压紧挤压连杆并挤压杆并且相对于主体部分的凸轮表面凸轮作为驱动头 移动叶轮部分 阀体部分。

    Chemically inert flow controller with non-contaminating body
    5.
    发明授权
    Chemically inert flow controller with non-contaminating body 有权
    具有非污染物的化学惰性流量控制器

    公开(公告)号:US07866337B2

    公开(公告)日:2011-01-11

    申请号:US11482542

    申请日:2006-07-07

    IPC分类号: F16K31/02

    摘要: A flow controller including a unitary controller body with a chemically inert fluid conduit having an insertable constriction or orifice disposed within the conduit having a reduced cross-sectional area to thereby restrict the flow of fluid within the conduit allowing for reliable flow measurement. An integrated circuit or controller may be coupled to the control valve and also coupled to the pressure sensors by a lead structure including signal conductors surrounded by a Faraday cage, and a chemically inert housing coupled to the unitary controller body enclosing the control valve and the pressure sensors.

    摘要翻译: 流量控制器包括具有化学惰性流体导管的整体控制器主体,其具有设置在导管内的可插入的收缩部或孔口,其具有减小的横截面积,从而限制管道内的流体流动,从而可靠地进行流量测量。 集成电路或控制器可以耦合到控制阀并且还通过包括由法拉第笼围绕的信号导体的引线结构耦合到压力传感器,以及耦合到包围控制阀的单一控制器主体和压力的化学惰性壳体 传感器。

    Magnetic flow meter with unibody construction and conductive polymer electrodes
    6.
    发明授权
    Magnetic flow meter with unibody construction and conductive polymer electrodes 有权
    具有单体结构和导电聚合物电极的磁流量计

    公开(公告)号:US07343817B2

    公开(公告)日:2008-03-18

    申请号:US11807996

    申请日:2007-05-31

    IPC分类号: G01F1/58

    CPC分类号: G01F1/60 G01F1/588

    摘要: A magnetic flow metering device and method is disclosed for the measurement of corrosive flow streams. The device utilizes a unibody construction wherein the flow conduit is constructed entirely from an insulative, non-conducting material without resorting to a metallic outer housing. The portions of the electrodes in contact with the flow stream are made of a suitable conductive polymer material, resistant to the corrosive media. The electrodes also feature shields that are molded into the electrode assembly to reduce background electrical noise. The invention also utilizes an electrical configuration that actively drives the electrode shield circuit (electrodes as well as cabling) to provide a more accurate measurement of the electromotive force.

    摘要翻译: 公开了一种用于测量腐蚀性流动的流量计量装置和方法。 该装置使用一体式结构,其中流动管道完全由绝缘的非导电材料构成,而不借助金属外壳体。 电极与流动流接触的部分由合适的导电聚合物材料制成,耐腐蚀性介质。 电极还具有模制到电极组件中以减少背景电噪声的屏蔽。 本发明还利用主动驱动电极屏蔽电路(电极以及布线)以提供更准确的电动势测量的电气结构。

    Magnetic flow meter with unibody construction and conductive polymer electrodes

    公开(公告)号:US07155983B2

    公开(公告)日:2007-01-02

    申请号:US11052005

    申请日:2005-02-04

    IPC分类号: G01F1/58

    CPC分类号: G01F1/60 G01F1/588

    摘要: A magnetic flow metering device and method is disclosed for the measurement of corrosive flow streams. The device utilizes a unibody construction wherein the flow conduit is constructed entirely from an insulative, non-conducting material without resorting to a metallic outer housing. The portions of the electrodes in contact with the flow stream are made of a suitable conductive polymer material, resistant to the corrosive media. The electrodes also feature shields that are molded into the electrode assembly to reduce background electrical noise. The invention also utilizes an electrical configuration that actively drives the electrode shield circuit (electrodes as well as cabling) to provide a more accurate measurement of the electromotive force.