中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

410 records (took 0.028 seconds)

    Bubble detection and recovery in a liquid pumping system
    131.
    发明授权
    Bubble detection and recovery in a liquid pumping system 有权
    液体泵送系统中的气泡检测和回收

    公开(公告)号：US06364623B1

    公开(公告)日：2002-04-02

    申请号：US09642922

    申请日：2000-08-21

    Applicant: Steven J. Ciavarini ,  Robert J. Dumas

    Inventor： Steven J. Ciavarini ,  Robert J. Dumas

    IPC: F04B1924

    CPC classification number: F04B49/065 ,  F04B49/06 ,  F04B53/06 ,  F04B2201/0201 ,  F04B2201/0206 ,  F04B2205/01 ,  F04B2205/05 ,  F04B2205/503

    Abstract: A serial, dual piston high pressure fluid pumping system that overcomes the difficulties of gas in the fluid stream without the need for added mechanical valves or fluid paths. A bubble detection and recovery mechanism monitors compression and decompression volumes of the serially configured dual pump head pump, and the overall system delivery pressure. Bubble detection is effected by sensing a ratio of compression to decompression volume and determining if the ratio exceeds an empirical threshold that suggests the ratio of gas-to-liquid content of eluent or fluid in the system is beyond the pump's ability to accurately meter a solvent mixture. The magnitude of the ratio of compression to decompression volume indicates that either the intake stroke has a bubble or that the eluent has a higher-than-normal, gas content. Once a bubble has been detected, recovery is effected by forcing the pump into a very high stroke volume to achieve a high compression ratio to expel a bubble, and automatically apportioning an optimal amount of piston travel necessary to keep gases compressed into the solution and maintain steady flow.

    Abstract translation: 一种串联双活塞高压流体泵送系统，克服了流体流中气体的困难，而不需要添加机械阀门或流体路径。 气泡检测和回收机构监测串联配置的双泵头泵的压缩和减压体积以及整个系统输送压力。 通过感测压缩与减压体积的比例并确定该比率是否超过经验阈值来实现气泡检测，该经验阈值表明系统中洗脱液或液体的气体 - 液体含量的比例超出了泵精确计量溶剂的能力 混合物。 压缩与减压体积比的大小表明进气冲程有气泡或者洗脱液具有高于正常的气体含量。 一旦检测到气泡，通过迫使泵进入非常高的行程体积来实现回收，以实现高压缩比以排出气泡，并且自动分配保持气体压缩到溶液中并保持的最佳活塞行程量 稳流。

    Microdosing device and method for operating same
    132.
    发明授权
    Microdosing device and method for operating same 失效
    微量滴定装置及其操作方法

    公开(公告)号：US06280148B1

    公开(公告)日：2001-08-28

    申请号：US09367664

    申请日：1999-08-17

    Applicant: Roland Zengerle ,  Michael Freygang ,  Manfred Stehr ,  Stephan Messner ,  Matthias Ashauer ,  Rainer Rossberg

    Inventor： Roland Zengerle ,  Michael Freygang ,  Manfred Stehr ,  Stephan Messner ,  Matthias Ashauer ,  Rainer Rossberg

    IPC: F04B4906

    CPC classification number: H01L41/00 ,  B01J2219/00351 ,  B01J2219/00364 ,  B01J2219/00378 ,  B01L3/0265 ,  B01L3/0268 ,  B01L3/5027 ,  B01L2200/146 ,  B01L2300/0816 ,  B01L2300/0887 ,  B01L2400/0406 ,  B01L2400/0439 ,  B01L2400/0487 ,  B05B9/0413 ,  C40B60/14 ,  F04B19/006 ,  F04B43/046 ,  F04B2201/0201 ,  G01F11/08 ,  G01N35/00 ,  G01N2035/00237

    Abstract: A microdosing device comprises a pressure chamber which is at least partly delimited by a displacer, an actuating device for actuating the displacer, the volume of the pressure chamber being adapted to be changed by actuating the displacer, a media reservoir which is in fluid comunication with the pressure chamber via a first fluid line, and an outlet opening which is in fluid communication with the pressure chamber via a second fluid line. The microdosing device additionally comprises a means for detecting the respective position of the displacer and a control means which is connected to the actuating device and to the means for detecting the position of the displacer, said control means controlling the actuating device on the basis of the detected position of the displacer or on the basis of displacer positions detected during at least one preceding dosing cycle so as to cause the discharge of a defined volume of fluid from the outlet opening. The control means comprises means for controlling the actuating device with a signal of low edge steepness so as to cause the displacer to move from a first position to a predetermined second position, the second position of the displacer defining a larger volume of the pressure chamber than the first position. In addition, the control means comprises means for controlling the actuating device with a signal of high edge steepness so as to cause the displacer to move from the second position to the first position for discharging in this way a defined volume of fluid from the outlet opening.

    Abstract translation: 微量饮料装置包括至少部分地由置换器限定的压力室，用于致动置换器的致动装置，压力室的体积适于通过致动置换器来改变;压力室的体积可以通过流体通过与 经由第一流体管线的压力室和通过第二流体管线与压力室流体连通的出口开口。 微量计量装置还包括用于检测置换器的相应位置的装置和连接到致动装置的控制装置和用于检测置换器的位置的装置，所述控制装置基于 检测置换器的位置，或者基于在至少一个以前的给料循环期间检测到的置换器位置，以便引起从出口开口排出限定体积的流体。 控制装置包括用于利用低边缘陡度的信号来控制致动装置的装置，以便使置换器从第一位置移动到预定的第二位置，置换器的第二位置限定压力室的体积更大， 第一名。 此外，控制装置包括用于利用具有高边缘陡度的信号来控制致动装置的装置，以便使置换器从第二位置移动到第一位置，以这种方式从出口开口排出限定体积的流体 。

    Linear peristaltic pump
    134.
    发明授权
    Linear peristaltic pump 有权
    线性蠕动泵

    公开(公告)号：US06213739B1

    公开(公告)日：2001-04-10

    申请号：US09341443

    申请日：1999-07-09

    Applicant: Iver J. Phallen ,  Douglas N. Vogt

    Inventor： Iver J. Phallen ,  Douglas N. Vogt

    IPC: F04B4308

    CPC classification number: F04B13/02 ,  A61M5/14228 ,  F04B43/0072 ,  F04B43/1133 ,  F04B43/1136 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2201/0206 ,  F04B2201/0601 ,  F04B2203/1001 ,  F04B2205/09

    Abstract: A liquid pumping apparatus for pumping liquids, more specifically a linear peristaltic pump apparatus. The apparatus consists of a high durometer compressible elastomeric liquid flow tube (12), an infeed valve assembly (26), an outfeed valve assembly (38), an extensible and retractable actuator anvil (34) having a round surface which engages the flow tube (12) at all times, an opposed anvil (24.1) having a round surface in engagement with the flow tube at all times, the flow tube being held between the anvils (34, 24.1) in a slightly compressed state when the anvil (34) is retracted, and a control assembly (100) for causing the movable anvil to be sequentially extended and retracted to cause flow within the flow tube (12) from the infeed valve assembly (26) to the outfeed valve assembly (38). With this apparatus the lumen of the flow tube (12) to the sides of the anvils is not completely reduced to zero volume during displacement compression whereby gas embolisms do not erupt or explode when discharged. Two principal embodiments are disclosed, one having infeed and outfeed check valves which oclude the flow tube, and the other having check valves.

    Abstract translation: 用于泵送液体的液体泵送装置，更具体地，是线性蠕动泵装置。 该设备包括高硬度可压缩弹性体液体流动管（12），进料阀组件（26），出料阀组件（38），可伸缩和可缩回的致动器砧座（34），其具有与流动管 （12），总是具有与所述流管接合的圆形表面的相对的砧座（24.1），所述砧座（34）在所述砧座（34）处于稍微压缩状态时保持在所述砧座（34,24.1）之间， ）和用于使所述可动砧被顺序地延伸和缩回从而使所述流管（12）内的流动从所述进料阀组件（26）流到所述出料阀组件（38）的控制组件（100）。 利用这种装置，流动管（12）在砧座的侧面的管腔在位移压缩期间不会完全减小到零体积，从而当排放时气体栓塞不会爆发或爆炸。 公开了两个主要实施例，一个具有进气和出料止回阀，其中包括流动管，而另一个具有止回阀。

    Condiment dispensing apparatus
    136.
    发明授权
    Condiment dispensing apparatus 失效
    调味品分配装置

    公开(公告)号：US06189736B1

    公开(公告)日：2001-02-20

    申请号：US09380652

    申请日：1999-09-07

    Applicant: Iver J. Phallen ,  Douglas N. Vogt

    Inventor： Iver J. Phallen ,  Douglas N. Vogt

    IPC: B67D508

    CPC classification number: F04B13/02 ,  A61M5/14228 ,  F04B43/0072 ,  F04B43/1133 ,  F04B43/1136 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2201/0206 ,  F04B2201/0601 ,  F04B2203/1001 ,  F04B2205/09

    Abstract: A condiment dispensing apparatus for dispensing condiments from a bag-in-box type container (108). There is a high durometer compressible elastomeric liquid flow tube (14), an infeed and outfeed thereto and therefrom, and a movable anvil (26) with a round surface to compress the tube. There is an opposed stationary anvil (28) which holds the tube for compression by the movable anvil. The tube is held between the anvils (26, 28) in a slightly compressed state even when the anvil is retracted. There is a control assembly (FIG. 15) that causes extension and retraction of the movable anvil to cause flow through the tube, and subsequent delivery of condiment to a dispensing fixture (110).

    Abstract translation: 一种用于从袋内盒式容器（108）分配调味品的调味品分配装置。 有一个高硬度的可压缩弹性体液体流动管（14），一个进给和从外面进给，以及一个具有圆形表面压缩管的可动砧座（26）。 存在一个相对的静止砧座（28），其固定用于可动砧压缩的管子。 即使当砧座缩回时，该管以稍微压缩的状态保持在砧座（26,28）之间。 存在一种控制组件（图15），其引起可移动砧的延伸和缩回以引起流过管，并且随后将调味品传送到分配夹具（110）。

    Diaphragm pump
    138.
    发明授权
    Diaphragm pump 失效
    隔膜泵

    公开(公告)号：US6126403A

    公开(公告)日：2000-10-03

    申请号：US995830

    申请日：1997-12-22

    Applicant: Kazumasa Yamada

    Inventor： Kazumasa Yamada

    IPC: F16K15/04 ,  F04B43/00 ,  F04B43/02 ,  F04B43/073 ,  F04B49/00

    CPC classification number: F04B43/0081 ,  F04B43/073 ,  F04B43/0736 ,  F04B2201/0201 ,  F04B2203/10

    Abstract: A diaphragm pump is provided with a diaphragm defining a pump chamber and a drive chamber in the pump housing, a driving fluid is supplied to the drive chamber and a pump fluid is expelled from the pump chamber. The diaphragm pump is provided with pressure control means which, when the pressure in the pump chamber surpasses the pressure in the drive chamber neighboring the pump chamber across the diaphragm, controls the pressure of the driving fluid based upon output signals from pressure sensors in such a manner that the pressure in the fluid chamber will become higher than the pressure in the neighboring drive chamber. This makes it possible to prevent a diaphragm reversal phenomenon, wherein a diaphragm that should expand toward the pump chamber contracts toward the drive chamber instead during reciprocation of the diaphragm.

    Abstract translation: 隔膜泵设置有在泵壳体中限定泵室和驱动室的隔膜，驱动流体被供应到驱动室并且泵流体从泵室排出。 隔膜泵设置有压力控制装置，当泵室中的压力超过邻近隔膜的泵室的驱动室中的压力时，基于来自压力传感器的输出信号控制驱动流体的压力 使得流体室中的压力将变得高于相邻驱动室中的压力。 这使得可以防止隔膜反转现象，其中在隔膜的往复运动期间，应朝向泵室膨胀的隔膜朝向驱动室收缩。

    Active pump phasing to enhance chromatographic reproducibility
    139.
    发明授权
    Active pump phasing to enhance chromatographic reproducibility 有权
    主动泵定相提高色谱重现性

    公开(公告)号：US6099724A

    公开(公告)日：2000-08-08

    申请号：US233555

    申请日：1999-01-20

    Applicant: Theodore A. Dourdeville

    Inventor： Theodore A. Dourdeville

    IPC: B01D15/08 ,  B01J4/02 ,  F04B13/00 ,  F04B23/06 ,  F04B49/06 ,  G01N30/32 ,  B10D15/08

    CPC classification number: G01N30/32 ,  F04B13/00 ,  F04B23/06 ,  F04B49/065 ,  F04B2201/0201 ,  G01N2030/326

    Abstract: A fluid delivery method and apparatus implementing active phasing to actively restore the substantially exact mechanical positions of driven components in a delivery system in order to precisely reproduce the mechanical signature and hydraulic characteristics of the system from run to run without perturbing output flow. The delivery system is configured to intelligently drive pump pistons to a known position and to delivery fluid(s) at a known pressure, and includes a plurality of pump modules each including motor driven syringes having respective pistons configured to reciprocate under control of a control mechanism. Pump phasing is accomplished through a mechanism of compensation delivery of the syringes. An independent, motor-driven syringe of any given pump in a plurality of pumps in a system has the ability to act as a delivering syringe to maintain a prescribed output flow while one other syringe of each of the plurality of pumps is repositioned under load. With the delivering syringe maintaining output flow, the syringe which is repositioning, i.e. being phased, can substantially simultaneously arrive at a destination position and at a destination pressure.

    Abstract translation: 实现有源定相的流体输送方法和装置主动地恢复输送系统中驱动部件的基本精确的机械位置，以便精确地再现系统的运行到运行的机械特征和液压特性而不扰乱输出流。 输送系统被配置为智能地将泵活塞驱动到已知位置并以已知压力输送流体，并且包括多个泵模块，每个泵模块包括电动机驱动的注射器，其具有被配置为在控制机构的控制下往复运动 。 泵的定相是通过注射器的补偿输送机制完成的。 在系统中的多个泵中的任何给定的泵的独立的电机驱动的注射器具有作为输送注射器保持规定的输出流量的能力，同时多个泵中的每一个的另一个注射器被重新定位在负载下。 在输送注射器保持输出流量的情况下，重新定位的注射器（即定相）可以基本上同时到达目的地位置和目的地压力。

Patent Agency Ranking