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    • 2. 发明授权
    • Method of enriching rare cells
    • 丰富稀有细胞的方法
    • US5962237A
    • 1999-10-05
    • US832468
    • 1997-04-02
    • Paul O. P. Ts'oZheng-Pin WangStephen A. LeskoWilliam G. NelsonAlan W. Partin
    • Paul O. P. Ts'oZheng-Pin WangStephen A. LeskoWilliam G. NelsonAlan W. Partin
    • C12N15/09C12N5/06C12N5/08C12N5/10C12Q1/68G01N33/48G01N33/569G01N33/574B01D33/15G01N9/30G01N33/53
    • G01N33/57407G01N33/56966G01N33/57434G01N33/57438G01N33/57488
    • A method for enriching cancer cells such as prostate cancer cells in a bodily fluid sample is disclosed comprising (a) obtaining the sample comprising cancer cells and non-rare cells; (b) subjecting the sample to multiple density gradient separation comprising a first density gradient and a second density gradient, wherein the second density gradient is greater than the first density gradient, and producing a first fluid comprising an increased concentration of cancer cells of a first density, and a second fluid comprising an increased concentration of cancer cells of a second density, wherein the second density is greater than the first density; wherein subjecting the sample to multiple density gradient separation includes producing a plasma layer, a first interface layer, a first gradient layer, a second interface layer, a second gradient layer, and a cell pellet; wherein producing the first fluid includes combining the first interface layer and the first gradient layer and forming a first suspension; and wherein producing the second fluid includes combining the second interface layer and the second gradient layer and forming a second suspension; (c) subjecting said second fluid comprising the second suspension to a binding agent that binds non-rare cells; and (d) removing the bound non-rare cells from the second fluid to provide a second fluid enriched with the greater density cancer cells.
    • 公开了一种在体液样品中富集癌细胞如前列腺癌细胞的方法,其包括(a)获得包含癌细胞和非罕见细胞的样品; (b)对样品进行多密度梯度分离,其包括第一密度梯度和第二密度梯度,其中所述第二密度梯度大于所述第一密度梯度,并且产生第一流体,所述第一流体包含增加浓度的第一 并且包括第二密度增加的癌细胞浓度的第二流体,其中所述第二密度大于所述第一密度; 其中对样品进行多重密度梯度分离包括产生等离子体层,第一界面层,第一梯度层,第二界面层,第二梯度层和细胞沉淀物; 其中制备所述第一流体包括组合所述第一界面层和所述第一梯度层并形成第一悬浮液; 并且其中制备所述第二流体包括组合所述第二界面层和所述第二梯度层并形成第二悬浮液; (c)使包含第二悬浮液的所述第二流体接合结合非稀有细胞的结合剂; 和(d)从第二流体中除去结合的非稀有细胞以提供富含更大密度的癌细胞的第二种液体。
    • 7. 发明授权
    • Semi-frozen food product carbonator
    • 半冷冻食品碳酸化器
    • US06830239B1
    • 2004-12-14
    • US09639868
    • 2000-08-16
    • Paul R. WeberWilliam G. NelsonRandy Alberg
    • Paul R. WeberWilliam G. NelsonRandy Alberg
    • B01F304
    • A23G9/46A23G9/045A23G9/163A23G9/224H02K1/2753H02K5/128H02K7/116H02K7/14H02K21/16H02K49/108H02K2207/03Y10S261/07
    • A carbonator tank includes a liquid inlet, a gas inlet and a liquid outlet. A liquid level sensor includes a liquid level sensing portion extending along and within the interior of the carbonator and provides for determining a full and minimal liquid level therein. The level sensor includes an outer contact portion for connection to an electronic control and the contact portion is integral with the liquid inlet. Additionally, the level sensor includes a deflection plate extending from the liquid level sensing portion in a direction there from that is transverse to the direction of flow of liquid into the carbonator interior through the liquid inlet. The liquid then flows into the carbonator interior and contacts the deflection plate and is deflected thereby so that such liquid flow does not disrupt the operation of the level sensing portion of the level sensor.
    • 碳酸化器罐包括液体入口,气体入口和液体出口。 液位传感器包括沿碳酸化器内部和内部延伸的液面感测部分,并且用于确定其中的完整和最小液位。 液位传感器包括用于连接到电子控制器的外部接触部分,并且接触部分与液体入口成一体。 此外,液位传感器包括偏转板,该偏转板从液面检测部分沿着与液体流动方向横向于通过液体入口进入碳酸器内部的方向延伸。 液体然后流入碳酸化器内部并接触偏转板并由此偏转,使得这种液体流动不会破坏液位传感器的液位感测部分的操作。
    • 9. 发明授权
    • Refrigerator system with float valve flow control
    • 具有浮阀流量控制的冰箱系统
    • US5799504A
    • 1998-09-01
    • US760048
    • 1996-12-04
    • William G. Nelson
    • William G. Nelson
    • F25B41/06F25B43/00
    • F25B41/065F25B43/003F25B41/067Y10T137/7319
    • A vapor compression refrigeration system having a condenser, a regulating device, and a capillary tube. The regulating device has a housing defining an inner chamber for receiving refrigerant from the condenser. A float is disposed within the chamber and includes a resilient surface. An outlet line connected to the capillary tube extends through a bottom wall of the housing and into the chamber. The float is movable in response to changes in level of refrigerant in the chamber. The float moves downward to close the outlet line when refrigerant in the chamber drops below a minimum level, and moves upward to open the outlet line when refrigerant in the chamber rises above the minimum level. A filter assembly for removing contaminants from the refrigerant is disposed within the chamber above the float.
    • 一种具有冷凝器,调节装置和毛细管的蒸气压缩式制冷系统。 调节装置具有限定用于从冷凝器接收制冷剂的内室的壳体。 浮子设置在室内并且包括弹性表面。 连接到毛细管的出口管线延伸穿过壳体的底壁并进入腔室。 浮子可响应腔室中的制冷剂水平的变化而移动。 当室中的制冷剂下降到最低水平时,浮子向下移动以关闭出口管线,并且当室中的制冷剂升高到最低水平时,向上移动以打开出口管路。 用于从制冷剂中除去污染物的过滤器组件设置在浮子上方的腔室内。