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    Device and Methods of Measuring Pressure
    1.
    发明申请
    Device and Methods of Measuring Pressure 有权
    测量压力的装置和方法

    公开(公告)号：US20080260558A1

    公开(公告)日：2008-10-23

    申请号：US10598310

    申请日：2005-03-04

    申请人： Joseph A. Luongo ,  John Angelosanto ,  Frank Rubino ,  Stanley P. Pensak Jr. ,  David J. First ,  Jean-Pierre Pugnaire ,  Richard R. Venable

    发明人： Joseph A. Luongo ,  John Angelosanto ,  Frank Rubino ,  Stanley P. Pensak Jr. ,  David J. First ,  Jean-Pierre Pugnaire ,  Richard R. Venable

    IPC分类号： F04B39/00 ,  G01L9/04

    CPC分类号： F04B53/162 ,  F04B53/16 ,  F04B2205/03 ,  G01N2030/326

    摘要： Embodiments of the present invention are directed to method and devices for measuring the pressure of a pump chamber in which no internal opening or connections are needed. One embodiment of the present invention is directed to an apparatus for pumping fluid. The apparatus comprises at least one housing having a transducer surface. The transducer surface has a thickness exhibiting measurable deformation upon the chamber holding a fluid under pressure such that the transducer surface has a first position at which the chamber is at one pressure and a second position at which the chamber is at a second pressure. A strain sensor is affixed to the transducer surface producing; at least one signal upon the transducer surface assuming the first position and at least one signal upon the transducer surface assuming the second position to function as an integrated pressure transducer.

    摘要翻译： 本发明的实施例涉及用于测量不需要内部开口或连接的泵室的压力的方法和装置。 本发明的一个实施例涉及一种用于泵送流体的装置。 该装置包括具有换能器表面的至少一个壳体。 换能器表面具有在腔室上保持流体的压力下呈现可测量变形的厚度，使得换能器表面具有腔室处于一个压力的第一位置和腔室处于第二压力的第二位置。 应变传感器固定在传感器表面上; 在换能器表面上的至少一个信号假设第一位置，并且在换能器表面上的至少一个信号假设第二位置用作集成的压力换能器。

    Device and methods of measuring pressure
    2.
    发明授权
    Device and methods of measuring pressure 有权
    测量压力的装置和方法

    公开(公告)号：US08333568B2

    公开(公告)日：2012-12-18

    申请号：US10598310

    申请日：2005-03-04

    申请人： Joseph A. Luongo ,  John Angelosanto ,  Frank Rubino ,  Stanley P. Pensak, Jr. ,  David J. First ,  Jean-Pierre Pugnaire ,  Richard R. Venable

    发明人： Joseph A. Luongo ,  John Angelosanto ,  Frank Rubino ,  Stanley P. Pensak, Jr. ,  David J. First ,  Jean-Pierre Pugnaire ,  Richard R. Venable

    IPC分类号： F04B49/00

    CPC分类号： F04B53/162 ,  F04B53/16 ,  F04B2205/03 ,  G01N2030/326

    摘要： Embodiments of the present invention are directed to method and devices for measuring the pressure of a pump chamber in which no internal opening or connections are needed. One embodiment of the present invention is directed to an apparatus for pumping fluid. The apparatus comprises at least one housing having a transducer surface. The transducer surface has a thickness exhibiting measurable deformation upon the chamber holding a fluid under pressure such that the transducer surface has a first position at which the chamber is at one pressure and a second position at which the chamber is at a second pressure. A strain sensor is affixed to the transducer surface producing; at least one signal upon the transducer surface assuming the first position and at least one signal upon the transducer surface assuming the second position to function as an integrated pressure transducer.

    摘要翻译： 本发明的实施例涉及用于测量不需要内部开口或连接的泵室的压力的方法和装置。 本发明的一个实施例涉及一种用于泵送流体的装置。 该装置包括具有换能器表面的至少一个壳体。 换能器表面具有在腔室上保持流体的压力下呈现可测量变形的厚度，使得换能器表面具有腔室处于一个压力的第一位置和腔室处于第二压力的第二位置。 应变传感器固定在传感器表面上; 在换能器表面上的至少一个信号假设第一位置，并且在换能器表面上的至少一个信号假设第二位置用作集成的压力换能器。

    High pressure pump with reduced seal wear
    4.
    发明授权
    High pressure pump with reduced seal wear 有权
    高压泵，减少密封磨损

    公开(公告)号：US09377011B2

    公开(公告)日：2016-06-28

    申请号：US14007392

    申请日：2012-04-17

    申请人： Joshua A. Shreve ,  Neal B. Almeida ,  John Angelosanto ,  Joseph A. Luongo

    发明人： Joshua A. Shreve ,  Neal B. Almeida ,  John Angelosanto ,  Joseph A. Luongo

    IPC分类号： F04B7/00 ,  F04B15/00 ,  F04B53/00 ,  F04B53/02 ,  F04B53/16

    CPC分类号： F04B7/0088 ,  F04B15/00 ,  F04B53/007 ,  F04B53/02 ,  F04B53/164

    摘要： Described are embodiments of a pump that can be used, for example, in liquid chromatography applications. The pump includes a seal wash housing, pump head and seal assembly. A wear-resistant coating applied to a sealing surface or gland of the pump head or seal wash housing improves the hardness and chemical compatibility of the sealing surface. Oxidation of the sealing surface is reduced so that the sealing surface is less abrasive to the seal assembly and the lifetime of the seal assembly is increased.

    摘要翻译： 描述了可以用于例如液相色谱应用中的泵的实施方案。 该泵包括一个密封清洗外壳，泵头和密封组件。 施加到泵头或密封清洗壳体的密封表面或密封套上的耐磨涂层改善了密封表面的硬度和化学相容性。 减小密封表面的氧化，使得密封表面对密封组件的磨损较小，并且密封组件的寿命增加。

    HIGH PRESSURE PUMP WITH REDUCED SEAL WEAR
    5.
    发明申请
    HIGH PRESSURE PUMP WITH REDUCED SEAL WEAR 有权
    具有减少密封磨损的高压泵

    公开(公告)号：US20140044577A1

    公开(公告)日：2014-02-13

    申请号：US14007392

    申请日：2012-04-17

    申请人： Joshua A. Shreve ,  Neal B. Almeida ,  John Angelosanto ,  Joseph A. Luongo

    发明人： Joshua A. Shreve ,  Neal B. Almeida ,  John Angelosanto ,  Joseph A. Luongo

    IPC分类号： F04B7/00

    CPC分类号： F04B7/0088 ,  F04B15/00 ,  F04B53/007 ,  F04B53/02 ,  F04B53/164

    摘要： Described are embodiments of a pump that can be used, for example, in liquid chromatography applications. The pump includes a seal wash housing, pump head and seal assembly. A wear-resistant coating applied to a sealing surface or gland of the pump head or seal wash housing improves the hardness and chemical compatibility of the sealing surface. Oxidation of the sealing surface is reduced so that the sealing surface is less abrasive to the seal assembly and the lifetime of the seal assembly is increased.

    摘要翻译： 描述了可以用于例如液相色谱应用中的泵的实施方案。 该泵包括一个密封清洗外壳，泵头和密封组件。 施加到泵头或密封清洗壳体的密封表面或密封套上的耐磨涂层改善了密封表面的硬度和化学相容性。 减小密封表面的氧化，使得密封表面对密封组件的磨损较小，并且密封组件的寿命增加。