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71. 发明授权

US5280721A Purge system 失效
标题翻译：清洗系统
公开(公告)号：US5280721A
公开(公告)日：1994-01-25
申请号：US937493
申请日：1992-08-28
申请人： Douglas T. Carson
发明人： Douglas T. Carson
IPC分类号： G01F1/00 , G01F1/26 , G01F1/28 , G01F1/52 , G01F15/12 , G01N1/10 , G01N1/20 , G05D7/06 , G05D16/20
CPC分类号： G05D7/067 , G01F1/002 , G01F1/26 , G01F1/28 , G01F1/52 , G01F15/12 , G01N1/2035 , Y10T137/0396 , Y10T137/7738 , Y10T137/86413
摘要： To measure flow rates, the cross-sectional shape of the flow path is changed by inserting a multiple position gate into the flow path and altering the position of the gate to maintain the head of liquid constant with a reduced flow cross section. The position of the multiple position gate is correlated with the depth as measured with a bubbler to provide an indication of flow rate. To purge the bubbler line, a purge tank is located near the bubbler line. At timed periods or as manually initiated the controller causes an increase in pressure in accumulator portion of the purge tank. When a predetermined pressure is reached, a purge valve in the purge tank opens, rapidly allowing a burst of air at a substantial pressure and velocity to flow through the bubbler line to remove any material adhering to the bubbler outlet port. For this purpose, the purge tank acts as an accumulator until the pressure in the tank against the effective area of the inner portion of a purge valve element overcomes the resisting force of a spring, at which time the valve element moves slightly, permitting air to flow over a larger area of the valve element. This increases the area receiving the accumulator air pressure to include an outer portion of the valve element and this increased effective pressure area of the valve increases the force rapidly to cause the valve to snap open.
摘要翻译：为了测量流量，流路的横截面形状通过将多位置浇口插入到流动路径中而改变，以改变浇口的位置以保持液体的头部以减小的流动横截面恒定。多位置门的位置与用起泡器测量的深度相关以提供流速的指示。为了清除起泡器管线，清洗槽位于起泡器线附近。在定时时间段或手动启动时，控制器会导致清洗槽的蓄液部分的压力增加。当达到预定压力时，净化罐中的净化阀打开，迅速允许以相当大的压力和速度爆发的空气流过起泡器管线以去除附着在起泡器出口上的任何材料。为此，净化槽作为蓄能器，直到罐内的压力相对于净化阀元件的内部的有效区域的压力克服了弹簧的阻力，此时阀元件略微移动，允许空气流过阀元件的较大区域。这增加了接收蓄能器空气压力的面积以包括阀元件的外部部分，并且阀的这种增加的有效压力面积迅速增加，以使阀门卡通。

72. 发明授权

US5269930A Apparatus and method for supercritical fluid extraction 失效
标题翻译：超临界流体萃取装置及方法
公开(公告)号：US5269930A
公开(公告)日：1993-12-14
申请号：US26998
申请日：1993-03-05
申请人： Daniel G. Jameson
发明人： Daniel G. Jameson
IPC分类号： B01D11/00 , B01D11/02 , B01D11/04 , F04B9/04 , F04B15/08 , F04B49/06 , F16K15/18 , G01F1/34 , G01N1/34 , G01N1/40 , G01N30/02 , G01N30/28 , G01N30/60 , G01N35/04 , G21F5/015
CPC分类号： F04B9/042 , B01D11/0203 , B01D11/0407 , F04B15/08 , F04B49/065 , F16K15/183 , G01F1/34 , G01N1/34 , G01N1/40 , G01N30/28 , G21F5/015 , F04B2205/03 , F04B2205/05 , F04B2205/09 , F05B2230/41 , F05C2201/0493 , F05C2253/12 , G01N2001/4033 , G01N2001/4061 , G01N2030/6013 , G01N2035/0441 , G01N30/02
摘要： To collect analyte in a supercritical fluid extraction process, the extractant flows to a collection container under pressure. In one embodiment, the collection container contains collection solvent through which the extractant flows to partition analyte. The extractant adds to the liquid and when the collection solvent-extractant mixture rises to a heating zone, the extractant vaporizes selecively since its vapor pressure is higher than the vapor pressure of the collection solvent. When its pressure exceeds a preset valve pressure it is vented so that extractant continually leaves the collection container. After the extraction is complete, the analyte is concentrated in the collection solvent. In another embodiment, the collection vessel includes a solid material on which the analyte collects. It is removed under pressure by a solvent that is concentrated under pressure.
摘要翻译：为了在超临界流体萃取过程中收集分析物，萃取剂在压力下流到收集容器。在一个实施方案中，收集容器含有收集溶剂，萃取剂通过该溶剂流动以分配分析物。萃取剂添加到液体中，并且当采集溶剂萃取剂混合物升至加热区时，萃取剂由于其蒸气压高于收集溶剂的蒸气压而选择性地蒸发。当其压力超过预设的阀压力时，其被排出，使得萃取剂连续地离开收集容器。萃取完成后，将分析物浓缩在收集溶剂中。在另一个实施方案中，收集容器包括分析物在其上收集的固体材料。在压力下通过在压力下浓缩的溶剂除去。

73. 发明授权

US5250195A Apparatus and method for supercritical fluid extraction 失效
标题翻译：超临界流体萃取装置及方法
公开(公告)号：US5250195A
公开(公告)日：1993-10-05
申请号：US966083
申请日：1992-10-23
申请人： Robin R. Winter , Daniel G. Jameson , Dale L. Clay , Robert W. Allington
发明人： Robin R. Winter , Daniel G. Jameson , Dale L. Clay , Robert W. Allington
IPC分类号： B01D11/02 , B01D11/04 , F04B9/04 , F04B15/08 , F04B49/06 , F16K15/18 , G01F1/34 , G01N1/34 , G01N1/40 , G01N30/02 , G01N30/28 , G01N30/60 , G01N35/04 , G21F5/015
CPC分类号： B01D11/0203 , B01D11/0407 , F04B15/08 , F04B49/065 , F04B9/042 , F16K15/183 , G01F1/34 , G01N1/34 , G01N1/40 , G01N30/28 , G21F5/015 , F04B2205/03 , F04B2205/05 , F04B2205/09 , F05B2230/41 , F05C2201/0493 , F05C2253/12 , G01N2001/4033 , G01N2001/4061 , G01N2030/6013 , G01N2035/0441 , G01N30/02
摘要： An apparatus for supercritical fluid extraction incorporates a removable extraction cartridge which in operation has insignificant pressure difference between its inside and outside walls. In one embodiment, the extractor includes a fraction collector for extractants, an automatic sample changer and an automatic cartridge transfer mechanism which provide completely automated extractions. To automatically perform extraction, valves for the fluids are automatically opened and closed in synchronism with the insertion and removal of the cartridges. These valves force a hard valve element into a softer valve seat with a valve stem that does not rotate significantly under the control of a rotary motor.
摘要翻译：用于超临界流体萃取的装置包括可移除的提取筒，其在操作中在其内壁和外壁之间具有不显着的压力差。在一个实施方案中，提取器包括用于萃取剂的馏分收集器，自动取样器和提供完全自动提取的自动送料机构。为了自动执行萃取，流体的阀门将与插入和拆卸墨盒同步自动打开和关闭。这些阀将硬阀元件压入较软的阀座，阀杆在旋转电机的控制下不会显着转动。

74. 发明授权

US5239359A Absorbance monitor 失效
标题翻译：吸光度计
公开(公告)号：US5239359A
公开(公告)日：1993-08-24
申请号：US909251
申请日：1986-09-19
申请人： Robert W. Allington
发明人： Robert W. Allington
IPC分类号： G01N21/25
CPC分类号： G01N21/255
摘要： To reduce noise in an absorbance monitor in which the light source is a deuterium lamp, an aspheric condensing mirror focuses light from an approximately 0.6 mm-high by 2 mm-wide part of the central bright spot in the deuterium lamp through a slit in an aperture plate which blocks all other light and an aspheric monochromator mirror focuses the light onto a plane reflective diffraction grating, which: (1) is mounted for orbiting about an axis parallel to the longitudinal axis of the slit; and (2) adjusted so that, as it orbits it reflects a selected wavelength of light to a beam splitter. Each beam is focused upon and transmitted through a different one of two equal oval apertures optically at least as large as the height of the image of the aperture near the lamp. The beams are converted to an electrical signal by silicon diode photosensors, thus using only light: (1) focused in both transverse planes and originating from the same spot on the central bright spot; and (2) with the same relative geometric weighting for light propagating in various directions from various subparts of the central bright spot. To reduce noise originating from flow-related refraction effects in the flow cell, the flow cell has reflective walls and a large collecting mirror focuses light entry in a large cone from the flow cell into a measuring photocell. This large cone has a wider angle than the cone of light entering the flow cell.
摘要翻译：为了降低光源是氘灯的吸光度监测器中的噪声，非球面聚光镜通过氘灯中的狭缝将来自氘灯中的中心亮点的大约0.6mm高×2mm宽的部分的光聚焦阻挡所有其他光的孔板和非球面单色仪镜将光聚焦到平面反射衍射光栅上，所述平面反射衍射光栅：（1）安装成围绕平行于狭缝的纵向轴线的轴线旋转; 和（2）进行调整，使得当其轨道运动时，它将选择的波长的光反射到分束器。每个光束被聚焦并透射通过光学上至少与灯附近的孔的图像的高度相同的两个相等的椭圆形孔中的不同的一个。光束通过硅二极管光电传感器转换为电信号，因此仅使用光：（1）聚焦在两个横向平面上并源自中心亮点上的同一点; 和（2）对于从中央亮点的各个子部分在各个方向传播的光具有相同的相对几何加权。为了减少源自流动池中流动相关折射效应的噪声，流动池具有反射壁，并且大的收集镜将来自流动池的大锥体中的光入射到测量光电池中。这个大锥体具有比进入流动池的光锥更宽的角度。

75. 发明授权

US5169511A Capillary electrophoresis technique 失效
标题翻译：毛细管电泳技术
公开(公告)号：US5169511A
公开(公告)日：1992-12-08
申请号：US469311
申请日：1990-01-24
申请人： Robert W. Allington , John R. Allington
发明人： Robert W. Allington , John R. Allington
IPC分类号： B01D57/02 , G01N1/10 , G01N27/447
CPC分类号： G01N27/44743 , G01N27/44721 , G01N27/44756 , G01N27/44782
摘要： To collect from an electrophoresis capillary tube containing a liquid separating medium, a sample cup has two wells containing electrolyte. The bottoms of the wells are covered with clamped-on semipermeable membrane assemblies to permit the flow of buffer ions but not the migration of separated sample. Electrical continuity for the electrophoretic migration taking place in capillary tubes is provided through the electrolyte in wells, the assembled semipermeable membranes, electrolyte buffer residing the carrier, the electrode and a conductor leading to electrical ground. Separated zones are detected, electrophoretically eluted or electrosmotically discharged from the capillary tube into the electrolyte in well where they are trapped by the semipermeable membrane in assembly.
摘要翻译：为了从含有液体分离介质的电泳毛细管中收集，样品杯具有两个含有电解质的孔。孔的底部被夹紧的半透膜组件覆盖，以允许缓冲离子的流动，而不是分离的样品的迁移。通过孔中的电解质，组装的半透膜，位于载体的电解质缓冲液，电极和导电地导体的导体，提供了在毛细管中进行的电泳迁移的电连续性。分离的区域被检测，电泳洗脱或电渗从毛细管排出到电解质中，在那里它们被组合中的半透膜捕获。

76. 发明授权

US5158675A Gradient system 失效
标题翻译：渐变系统
公开(公告)号：US5158675A
公开(公告)日：1992-10-27
申请号：US535565
申请日：1990-06-11
申请人： Robert W. Allington , Daniel G. Jameson
发明人： Robert W. Allington , Daniel G. Jameson
IPC分类号： G01N30/34
CPC分类号： G01N30/34 , G01N2030/347 , Y10T137/2499
摘要： To supply a programmed gradient to a high pressure pump for introduction into a column, a mixer, degasser and accumulator communicates with the high pressure pump to supply fluid thereto, having a volume no more than 150 times the chamber volume of the high pressure pump. The mixer, degasser and accumulator includes temperature sensors which sense when the mixer, degasser and accumulator has been emptied to a level where it cannot respond to a demand for fluid from said high pressure pump and provides a signal to a low pressure pump which responds by cycling to again fill the mixer, degasser and accumulator. Upon receiving a demand signal, the low pressure pump fills by drawing fluid from a plurality of fluid sources to compose the gradient being used at that time, with the pump slowing during valve opening and closing so as to avoid cavitation.
摘要翻译：为了向高压泵提供编程梯度以引入塔中，混合器，脱气器和蓄能器与高压泵连通以向其提供流体，其体积不超过高压泵的室容积的150倍。混合器，脱气机和蓄能器包括温度传感器，其感测混合器，脱气器和蓄能器何时被排空到不能响应来自所述高压泵的流体需求的水平，并且向低压泵提供信号，该低压泵由循环再次填充混合器，脱气机和蓄压器。在接收到需求信号时，通过从多个流体源抽取流体来填充低压泵以构成当时使用的梯度，同时在阀打开和关闭期间泵减慢，以避免空化。

77. 发明授权

US5132014A Apparatus and method for supercritical fluid extraction 失效
标题翻译：超临界流体萃取装置及方法
公开(公告)号：US5132014A
公开(公告)日：1992-07-21
申请号：US786752
申请日：1991-11-01
申请人： Robert W. Allington , Dale L. Clay , Daniel G. Jameson , Robin R. Winter
发明人： Robert W. Allington , Dale L. Clay , Daniel G. Jameson , Robin R. Winter
IPC分类号： A61B17/32 , A61B18/14 , B01D11/02 , B01D11/04 , F04B9/04 , F04B15/08 , F04B49/06 , F16K15/18 , G01F1/34 , G01N1/34 , G01N1/40 , G01N30/02 , G01N30/28 , G01N30/60 , G01N35/04 , G21F5/015
CPC分类号： G21F5/015 , B01D11/0203 , B01D11/0407 , F04B15/08 , F04B49/065 , F04B9/042 , F16K15/183 , G01F1/34 , G01N1/34 , G01N1/40 , G01N30/28 , A61B17/32 , A61B2018/126 , F04B2205/03 , F04B2205/05 , F04B2205/09 , F05B2230/41 , F05C2201/0493 , F05C2253/12 , G01N2001/4033 , G01N2001/4061 , G01N2030/6013 , G01N2035/0441 , G01N30/02 , Y10T29/53443
摘要： An apparatus for supercritical fluid extraction incorporates a removable extraction cartridge which in operation has insignificant pressure difference between its inside and outside walls. Because of the low pressure difference, the extraction cartridge need not have the strength to withstand significant pressure and can be made out of molded plastic for disposable use as well as stainless steel and machined plastic for reusability. The extraction cartridge can be removed and opened for sample access without the use of tools. The outside of the cartridge can be purged after it is installed in a heated high pressure vessel to remove contamination from its exterior.
摘要翻译：用于超临界流体萃取的装置包括可移除的提取筒，其在操作中在其内壁和外壁之间具有不显着的压力差。由于低压差，提取盒不需要具有承受显着压力的强度，并且可以由用于一次性使用的模制塑料以及用于可重复使用的不锈钢和机加工塑料制成。提取盒可以拆卸和打开，无需使用工具进行样品通道。在将其安装在加热的高压容器中以清除其外部的污染物之后，可将其清除。

78. 发明授权

US5125801A Pumping system 失效
标题翻译：抽水系统
公开(公告)号：US5125801A
公开(公告)日：1992-06-30
申请号：US474154
申请日：1990-02-02
申请人： Frederick A. Nabity , Paul G. Wright , Raymond Hulinsky , Douglas T. Carson
发明人： Frederick A. Nabity , Paul G. Wright , Raymond Hulinsky , Douglas T. Carson
IPC分类号： E21B43/12 , F04B43/12 , F04B49/10 , G01F1/72 , G01F3/00 , G01F3/20 , G01L9/00 , G01N1/00 , G01N1/14 , G01N1/18 , G01N35/04
CPC分类号： G01N1/18 , E21B43/121 , F04B43/12 , F04B43/1253 , F04B43/1276 , F04B49/10 , G01F1/72 , G01F3/00 , G01F3/20 , G01L9/0001 , G01N1/14 , F04B2205/06 , G01N2001/007 , G01N2035/0491
摘要： To draw samples from a source of liquid, a pumping system measures the amount of liquid being pumped by detecting pump cycles and calculating the pumped liquid from this measurement and stored data including conduit size, pressure head and statistical data to correlate detected pump cycles with volume of liquid pumped. Pressure pulses caused by a peristaltic pump are sensed by a piezoelectric film positioned on an inlet conduit connecting the pump to the source of water and, when the liquid reaches a predetermined point determined by the nature of the pulses, the pulses are counted to determine the number of pump cycles.

79. 发明授权

US5071562A Chromatographic system with mixer 失效
标题翻译：带搅拌机的色谱系统
公开(公告)号：US5071562A
公开(公告)日：1991-12-10
申请号：US621648
申请日：1990-12-03
申请人： Robert W. Allington , John N. Jones
发明人： Robert W. Allington , John N. Jones
IPC分类号： G01N30/34
CPC分类号： G01N30/34
摘要： To prevent the solvents forming a gradient from mixing at the wrong place and to provide for accurate composition at start of the gradient in spite of solvent pressure variations, a microliquid or supercritical fluid chromatograph includes a combined mixer and pressure detector in which equal pressures of the two solvents in the gradient are detected by displacement of a ferromagnetic poppet in the mixing chamber. The poppet serves as a stop for the final solvent until the pressures are substantially equal and then its movement is detected by a circuit related to a linear variable differential transformer. The signal energizes a circuit which drives one of the sensing coils to drive the poppet during the gradient to provide mixing.
摘要翻译：为了防止形成梯度的溶剂在错误的地方混合，并且尽管有溶剂压力变化而在梯度开始时提供精确的组成，但微液体或超临界流体色谱仪包括组合的混合器和压力检测器，其中相同的压力梯度中的两种溶剂通过在混合室中的铁磁提升阀的位移来检测。提升阀作为最终溶剂的停止点，直到压力基本相等，然后通过与线性可变差动变压器相关的电路检测其运动。该信号激励驱动其中一个感测线圈的电路，以在梯度期间驱动提升阀以提供混合。

80. 发明授权

US4966696A Method of making a frit 失效
标题翻译：制作玻璃料的方法
公开(公告)号：US4966696A
公开(公告)日：1990-10-30
申请号：US368112
申请日：1989-06-16
申请人： Robert W. Allington , Abolghassem Y. Tehrani , John N. Jones
发明人： Robert W. Allington , Abolghassem Y. Tehrani , John N. Jones
IPC分类号： B01D15/08 , B01D15/22 , G01N30/60 , G01N30/74
CPC分类号： B01D15/22 , G01N30/603 , G01N30/6017 , G01N30/6026 , G01N30/6052 , G01N30/74
摘要： To reduce tailing, the frit at the outlet to the liquid chromatographic column has a diameter substantially equal to that of the inside diameter of the outlet end of the column and less than two millimeters. It is held directly against the packing of the column within a cylindrical member having a shoulder with a central aperture at least the size of the diameter of the frit and cylindrical walls which are fastened to resist force in the direction of the axis of the column from its inlet to its outlet. A gasket seals the cylindrical holder against the column wall. The frit is formed of gold-plated nickel spheres sintered together at temperature lower than the gold-nickel eutectic temperature of 950 degrees Celsius but above the phase-immiscibility temperature of 720 degrees Celsius. The size and shape of the frit is selected to reduce tailing by causing the flow path from the column to be uniform.
摘要翻译：为了减少拖尾，液相色谱柱出口处的玻璃料的直径基本上等于柱的出口端的内径，直径小于2毫米。它被直接抵靠在具有肩部的圆柱形构件的圆柱形构件中，所述圆柱形构件具有至少具有中心孔的至少大小的玻璃料和圆柱形壁的直径的尺寸，所述玻璃料和圆柱形壁被紧固以抵抗在柱的轴线方向上的力其入口到其出口。垫圈将柱形保持器密封在柱壁上。玻璃料由低于950℃的金 - 镍共晶温度但高于720℃的相不混溶温度在一起烧结在一起的镀金镍球形成。选择玻璃料的尺寸和形状以通过使来自塔的流动路径均匀来减少拖尾。

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