Low carryover high pressure fluidic fitting

    公开(公告)号:US10591095B2

    公开(公告)日:2020-03-17

    申请号:US16275406

    申请日:2019-02-14

    Abstract: A fluidic coupling includes a compression screw having an axial bore, a threaded portion configured to engage a threaded bore of a coupling body, and a drive surface, a tube extending through the axial bore of the compression screw, the tube including a body and a fluidic channel extending through the body to a sealing end, the body including a pocket formed at the sealing end having a depth, a collet secured to an outer surface of the tube and having a first end configured to receive the drive surface of the compression screw, and a polymer seal having a channel to pass a fluid, the polymer seal including a flange portion and an insertion portion.

    DEVICE AND METHODS USING POROUS MEDIA IN FLUIDIC DEVICES

    公开(公告)号:US20180021779A1

    公开(公告)日:2018-01-25

    申请号:US15702007

    申请日:2017-09-12

    Abstract: A system that incorporates teachings of the subject disclosure may include, for example, a process that includes obtaining a porous medium comprising a porous material having a first shape and an initial porosity profile. The porous medium is engaged with a cavity in a fluidic device, wherein the cavity is in fluid communication with a channel of the fluidic device. The first shape of the porous material can be adjusted to a second shape resulting in the initial porosity profile being adjusted to a target porosity profile. Such adjustment can be accomplished by the engaging of the porous medium with the cavity, by pre-adjusting a shape of the porous media before insertion into the cavity, or by some combination thereof. Other embodiments are disclosed.

    LOW CARRYOVER HIGH PRESSURE FLUIDIC FITTING
    3.
    发明申请
    LOW CARRYOVER HIGH PRESSURE FLUIDIC FITTING 审中-公开
    低压高压流体接头

    公开(公告)号:US20160223108A1

    公开(公告)日:2016-08-04

    申请号:US15095427

    申请日:2016-04-11

    Abstract: Described is a fitting for coupling fluidic paths which facilitates secure and low leak rate fluid flow through a fluidic path junction such as a junction in a liquid chromatography system or other chemical analysis instrument. Fluid containing various mixtures of chemical samples can pass through the junction at high pressure with little or no trapped residue remaining in a volume at the connection. According to various embodiments, a face seal is achieved between two separate fluidic path features. In some embodiments, the sealing of the fluidic paths is aided by the use of a compliant polymer seal. The seal facilitates intimate contact between adjacent surfaces and significantly limits or prevents the entry of fluid under high pressure into an unswept volume. Thus the risk of carryover and its adverse effect on measurements is reduced or eliminated.

    Abstract translation: 描述了用于耦合流体路径的配件,其有助于安全和低泄漏流体流过流体路径连接,例如液相色谱系统或其它化学分析仪器中的结。 含有各种化学样品混合物的流体可以在高压下通过接头,很少或没有残留残留在连接处的体积中的残留物。 根据各种实施例,在两个独立的流体路径特征之间实现面密封。 在一些实施例中,通过使用柔性聚合物密封件有助于流体路径的密封。 密封件有助于相邻表面之间的紧密接触,并且显着地限制或防止流体在高压下进入未被吹扫的体积。 因此,减少或消除了遗留的风险及其对测量的不利影响。

    Rotary shear valve and associated methods
    4.
    发明授权
    Rotary shear valve and associated methods 有权
    旋转剪切阀及相关方法

    公开(公告)号:US09303775B2

    公开(公告)日:2016-04-05

    申请号:US14108827

    申请日:2013-12-17

    Abstract: Exemplary embodiments are directed to rotary shear valves which include a stator, a rotor defining a cavity extending at least partially therethrough, and a bladder. The rotor is rotatably mounted relative to the stator to create at least one fluidic path therebetween. The bladder comprises a polymer disposed inside the cavity. Exemplary embodiments are also directed to methods of operating a rotary shear valve.

    Abstract translation: 示例性实施例涉及旋转剪切阀,其包括定子,限定至少部分穿过其延伸的空腔的转子和气囊。 转子相对于定子可旋转地安装,以在它们之间产生至少一个流体路径。 膀胱包括设置在腔内的聚合物。 示例性实施例还涉及操作旋转剪切阀的方法。

    BACK PRESSURE REGULATION
    5.
    发明申请
    BACK PRESSURE REGULATION 审中-公开
    后压调节

    公开(公告)号:US20150083947A1

    公开(公告)日:2015-03-26

    申请号:US14382603

    申请日:2013-03-04

    CPC classification number: F16K1/385 B01D15/40 F16K25/005 F16K31/0655 G01N30/60

    Abstract: The invention generally provides a dynamic back pressure regulator. In an exemplary embodiment, the back pressure regulator includes an inlet, an outlet, a seat disposed between the inlet and the outlet and defining at least part of a fluid pathway, and a needle displaceable relative to the seat to form a restriction region therebetween for restricting fluid flow between the inlet and the outlet. In some embodiments, the needle can include a corrosion and/or erosion resistant polymer tip.

    Abstract translation: 本发明通常提供一种动态背压调节器。 在示例性实施例中,背压调节器包括入口,出口,设置在入口和出口之间并限定流体通道的至少一部分的座,以及可相对于座移动的针,以在其间形成限制区域, 限制入口和出口之间的流体流动。 在一些实施例中,针可以包括耐腐蚀和/或耐腐蚀的聚合物尖端。

    Device and methods using porous media in fluidic devices

    公开(公告)号:US10583436B2

    公开(公告)日:2020-03-10

    申请号:US15702007

    申请日:2017-09-12

    Abstract: A system that incorporates teachings of the subject disclosure may include, for example, a process that includes obtaining a porous medium comprising a porous material having a first shape and an initial porosity profile. The porous medium is engaged with a cavity in a fluidic device, wherein the cavity is in fluid communication with a channel of the fluidic device. The first shape of the porous material can be adjusted to a second shape resulting in the initial porosity profile being adjusted to a target porosity profile. Such adjustment can be accomplished by the engaging of the porous medium with the cavity, by pre-adjusting a shape of the porous media before insertion into the cavity, or by some combination thereof. Other embodiments are disclosed.

    DEVICE AND METHODS USING POROUS MEDIA IN FLUIDIC DEVICES
    8.
    发明申请
    DEVICE AND METHODS USING POROUS MEDIA IN FLUIDIC DEVICES 有权
    在液体装置中使用多孔介质的装置和方法

    公开(公告)号:US20160082435A1

    公开(公告)日:2016-03-24

    申请号:US14489855

    申请日:2014-09-18

    Abstract: A system that incorporates teachings of the subject disclosure may include, for example, a process that includes obtaining a porous medium comprising a porous material having a first shape and an initial porosity profile. The porous medium is engaged with a cavity in a fluidic device, wherein the cavity is in fluid communication with a channel of the fluidic device. The first shape of the porous material can be adjusted to a second shape resulting in the initial porosity profile being adjusted to a target porosity profile. Such adjustment can be accomplished by the engaging of the porous medium with the cavity, by pre-adjusting a shape of the porous media before insertion into the cavity, or by some combination thereof. Other embodiments are disclosed.

    Abstract translation: 结合本公开的教导的系统可以包括例如包括获得包含具有第一形状和初始孔隙率分布的多孔材料的多孔介质的方法。 多孔介质与流体装置中的空腔接合,其中空腔与流体装置的通道流体连通。 可以将多孔材料的第一形状调节到第二形状,从而将初始孔隙率分布调整到目标孔隙率分布。 这种调节可以通过将多孔介质与空腔接合,通过在插入空腔之前预先调节多孔介质的形状,或通过其一些组合来实现。 公开了其他实施例。

    INJECTION-COMPRESSION MOLDED ROTORS
    9.
    发明申请
    INJECTION-COMPRESSION MOLDED ROTORS 审中-公开
    注塑成型转子

    公开(公告)号:US20150184760A1

    公开(公告)日:2015-07-02

    申请号:US14408403

    申请日:2013-06-03

    Abstract: A shear valve assembly for use in a high performance liquid chromatography system. The shear valve assembly includes a stator having a plurality of first fluid-conveying features; and a rotor having one or more second fluid-conveying features. The rotor is movable, relative to the stator, between a plurality of discrete positions such that, in each of the discrete positions, at least one of the one or more second fluid-conveying features overlaps with multiple ones of the first fluid conveying features to provide for fluid communication therebetween. The rotor, including the second fluid-conveying features, is formed by injection-compression molding.

    Abstract translation: 用于高效液相色谱系统的剪切阀组件。 剪切阀组件包括具有多个第一流体输送特征的定子; 以及具有一个或多个第二流体输送特征的转子。 转子可相对于定子在多个离散位置之间移动,使得在每个离散位置中,一个或多个第二流体输送特征中的至少一个与第一流体输送特征中的多个重叠, 提供其间的流体连通。 包括第二流体输送特征的转子通过注射压缩成型形成。

    LOW CARRYOVER HIGH PRESSURE FLUIDIC FITTING
    10.
    发明申请

    公开(公告)号:US20190178426A1

    公开(公告)日:2019-06-13

    申请号:US16275406

    申请日:2019-02-14

    Abstract: A fluidic coupling includes a compression screw having an axial bore, a threaded portion configured to engage a threaded bore of a coupling body, and a drive surface, a tube extending through the axial bore of the compression screw, the tube including a body and a fluidic channel extending through the body to a sealing end, the body including a pocket formed at the sealing end having a depth, a collet secured to an outer surface of the tube and having a first end configured to receive the drive surface of the compression screw, and a polymer seal having a channel to pass a fluid, the polymer seal including a flange portion and an insertion portion.

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