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1. 发明授权

US07037081B2 High pressure reciprocating pump and control of the same 有权
标题翻译：高压往复泵与控制相同
公开(公告)号：US07037081B2
公开(公告)日：2006-05-02
申请号：US10763097
申请日：2004-01-22
申请人： Robert W. Allington , Scott L. Blakley , Henry L. Walters
发明人： Robert W. Allington , Scott L. Blakley , Henry L. Walters
IPC分类号： F04B49/20
CPC分类号： F04B1/02 , F04B11/0058 , F04B11/0083 , F04B49/065 , F04B2203/0209 , F04B2205/05 , F04B2205/09 , G01N30/36 , G01N2030/326
摘要： Pumping requirements for chromatograph applications are for constant flow at high and variable pressures and for accurate programmable control of liquid composition. A two-cylinder pump, pumping system, and associated controls provide an accurate, fixed flow rate. A low pressure gradient former controls composition. During the initial portion of the pumping stroke of a first piston in which fluid is being compressed due to its finite bulk modulus of elasticity its check valve remains closed, a second piston provides all the flow required at a fixed rotational speed. Then, once the first piston has reached its bottom dead center, the control system switches to a constant-pressure control mode, thereby maintaining the flow rate at a fixed value. Constant-pressure control is again switched off either when the second piston's discharge check valve closes, or when the second piston's inlet check valve opens, and pump control returns to fixed rotational speed. Determining the angular displacement at which to effect these control-mode switches is carried out by monitoring the discharge pressure and storing the values of the angular displacement at which the first temporal derivative of pressure changes rapidly. The invention provides novel arrangement for synchronizing the gradient generator by equating recompression volume to recompression volume of the high pressure pump.
摘要翻译：色谱仪应用的泵送要求是在高压和可变压力下恒定流量，并可精确控制液体组成。双缸泵，泵系统和相关控制提供精确的固定流量。低压梯度成形器控制组成。在第一活塞的泵送冲程的初始部分期间，其中流体由于其有限的体积弹性模量而被压缩，其止回阀保持关闭，第二活塞提供固定转速所需的所有流量。然后，一旦第一活塞达到其下止点，则控制系统切换到恒压控制模式，从而将流量维持在固定值。当第二活塞的排放止回阀关闭时，或者当第二活塞的入口单向阀打开时，恒压控制再次被关闭，并且泵控制返回固定的转速。确定实现这些控制模式开关的角位移通过监视排出压力并存储压力的第一时间导数快速变化的角位移的值来进行。本发明提供了通过将再压缩体积与高压泵的再压缩容积相等来使梯度发生器同步的新颖布置。

2. 发明申请

US20030024882A1 Disposable chromatographic columns 有权
标题翻译：一次性色谱柱
公开(公告)号：US20030024882A1
公开(公告)日：2003-02-06
申请号：US09920124
申请日：2001-08-01
申请人： Isco, Inc.
发明人： Delwin D. Hodgin , Dale A. Davison
IPC分类号： B01D015/08
CPC分类号： B01D15/22 , G01N30/6004 , G01N30/6052 , G01N30/6091 , Y10T29/49604 , Y10T436/255
摘要： To make an inexpensive chromatographic column and perform chromatography with it, column walls and a column end with an inlet port are molded integrally from plastic and a snap-on end is molded integrally with an outlet port from plastic. A filter is placed in one end of the column and the column is filled with packing material up to the second end. A filter is placed on top of the packing and a snap-on end with a molded outlet port is snapped onto the body with linear motion until an interference fit is formed. As the body and snap-on end are moved together cantilever members formed integrally with the snap on end are bent outwardly by detent members until the detent members are captured by an opening in the cantilever members.
摘要翻译：为了制造便宜的色谱柱并进行色谱，柱状壁和具有入口的柱端部由塑料一体成型，并且卡扣端与塑料的出口一体地模制。过滤器放置在塔的一端，柱子填充有直到第二端的填料。将过滤器放置在填料的顶部，具有模制出口的卡扣端以线性运动卡扣在主体上，直到形成过盈配合。随着主体和卡扣端部一起移动，与卡扣端部一体形成的悬臂部件通过制动部件向外弯曲，直到止动件被悬臂部件中的开口捕获。

3. 发明申请

US20020116989A1 Liquid chromatographic method and system 有权
公开(公告)号：US20020116989A1
公开(公告)日：2002-08-29
申请号：US09883968
申请日：2001-06-19
申请人： Isco, Inc.
发明人： Dale A. Davison , Scott L. Blakley
IPC分类号： G01N013/00 , G01N030/84
CPC分类号： G01N35/1097 , B01D15/12 , B01D15/166 , B01D15/247 , G01N1/38 , G01N30/22 , G01N30/24 , G01N30/32 , G01N30/34 , G01N30/466 , G01N30/74 , G01N30/88 , G01N2001/383 , G01N2030/027 , G01N2030/324 , G01N2030/326
摘要： To economically perform preparatory chromatography, a plurality of pumps each having a corresponding one of a plurality of pistons and a corresponding one of a plurality of cylinders are driven by one motor to draw and pump solvent simultaneously into corresponding columns. To form a gradient, the pumps are connected to two-way valves that are connected alternately to a first solvent and a second solvent, whereby the time said valve is in a first position controls the amount of solvent drawn from the first reservoir into said pumps and the amount of time in said second position controls the amount of said second solvent drawn from the second reservoir into said pumps and the solvent is mixed in the pumping systems. The detectors are photodiodes mounted to light guides in the flow cells that generate signals related to light absorbance and communicate with a controller, whereby the controller receives signals indicating solute between the light guides and causes collection of solute. An over-pressure system compensates for pressure over a predetermined level.

4. 发明授权

US6149814A Apparatus and method for supercritical fluid extraction or supercritical fluid chromatography 失效
标题翻译：超临界流体萃取或超临界流体色谱仪的设备和方法
公开(公告)号：US6149814A
公开(公告)日：2000-11-21
申请号：US74254
申请日：1998-05-07
申请人： Robert W. Allington , Henry LeRoy Walters , Daniel Gene Jameson , Yoossef Tehrani
发明人： Robert W. Allington , Henry LeRoy Walters , Daniel Gene Jameson , Yoossef Tehrani
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 , G01N30/32 , G01N30/60 , G01N30/82 , G01N35/04 , G21F5/015 , B01D11/00
CPC分类号： B01D11/0407 , B01D11/0203 , F04B15/08 , F04B49/065 , F04B9/042 , F16K15/183 , G01F1/34 , G01N1/34 , G01N1/40 , G01N30/28 , G01N30/82 , G21F5/015 , F04B2205/03 , F04B2205/05 , F04B2205/09 , F05B2230/41 , F05C2201/0493 , F05C2253/12 , G01N2001/4033 , G01N2001/4061 , G01N2030/6008 , G01N2030/6013 , G01N2035/0441 , G01N30/02 , G01N30/32 , G01N30/60
摘要： A variable-orifice fluid restrictor for use with a supercritical extractor or chromatograph includes an inlet line for fluid at a pressure above its critical pressure, an extended tubular probe having an inner and an outer surface and a proximal and a distal end. The proximal end of the probe is disposed toward the inlet line. The distal end of the probe includes an adjustable orifice means adapted for metering the fluid and having first and second orifice members and an adjusting stem having first and second ends. The adjustable orifice means is adjacent to the outer surface of the probe and the orifice means is adjustable with the adjusting stem. The end of the adjusting stem is located at the distal end of the probe and is adapted for moving the first orifice member with respect to the second orifice member to control the adjustable orifice for varying the restriction of fluid passing through the adjustable orifice.
摘要翻译：用于超临界萃取器或色谱仪的可变孔口流体限制器包括用于高于其临界压力的压力的流体的入口管线，具有内外表面和近端和远端的延伸管状探针。探针的近端朝向入口线设置。探针的远端包括适于计量流体并具有第一和第二孔口构件的调节孔口装置和具有第一和第二端部的调节杆。可调整的孔口装置与探针的外表面相邻，孔口装置可用调节杆调节。调节杆的端部位于探针的远端，并且适于相对于第二孔构件移动第一孔构件以控制可调节孔，以改变通过可调节孔的流体的限制。

5. 发明授权

US5915932A Peristaltic pump having a roller support 失效
标题翻译：蠕动泵具有辊支撑
公开(公告)号：US5915932A
公开(公告)日：1999-06-29
申请号：US597284
申请日：1996-02-06
申请人： Frederick Alan Nabity , Robert Raymond Fiedler , James Paul Masek , Brian D. Dawson , Russell Todd Barker , Frederick Detlef Sueverkruepp, III , Ralph E. Setter , Paul George Wright , Larry Lee Fritz
发明人： Frederick Alan Nabity , Robert Raymond Fiedler , James Paul Masek , Brian D. Dawson , Russell Todd Barker , Frederick Detlef Sueverkruepp, III , Ralph E. Setter , Paul George Wright , Larry Lee Fritz
IPC分类号： E21B43/12 , F04B43/12 , F04B49/10 , G01F1/72 , G01F3/00 , G01F3/20 , G01L9/00 , G01N1/00 , G01N1/18 , G01N35/04 , F04B43/08
CPC分类号： E21B43/121 , F04B43/12 , F04B43/1253 , F04B43/1276 , F04B49/10 , G01F1/72 , G01F3/00 , G01F3/20 , G01L9/0001 , G01N1/18 , F04B2205/06 , G01N2001/007 , G01N2035/0491
摘要： The rollers of a peristaltic pump are supported to prevent said rollers from compressing said tube more than the thickness of the walls of the tube. A tube holder rotates along with the roller assembly of the peristaltic pump and keeps the tube in line with the rollers.
摘要翻译：蠕动泵的辊被支撑以防止所述辊压缩所述管而不是管的壁的厚度。管支架与蠕动泵的辊组件一起旋转并保持管与辊成一直线。

6. 发明授权

US5911881A Apparatus and method for collecting analyte in supercritical fluid extraction 失效
标题翻译：超临界流体萃取中收集分析物的装置和方法
公开(公告)号：US5911881A
公开(公告)日：1999-06-15
申请号：US976768
申请日：1997-11-24
申请人： Dale Lee Clay , Robert W. Allington , Philip Bernard Liescheski, III , Robin Randall Winter , Daniel Gene Jameson
发明人： Dale Lee Clay , Robert W. Allington , Philip Bernard Liescheski, III , Robin Randall Winter , Daniel Gene Jameson
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 , B01D11/00
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： To collect analyte from a supercritical fluid extractor, the collector lifts vials into place by a biasing device that guides the file up to the restrictor where it is sealed. The vial can be moved back down from the collecting mechanism even if frost forms on the vial while the restrictor remains stationary. This vial is held in place by a guide that contains the seal for sealing the vial when it is raised in place.
摘要翻译：为了从超临界流体提取器收集分析物，收集器通过偏压装置将小瓶提升到适当位置，该偏压装置将文件引导到限制器，在那里它被密封。即使在限流器保持静止的情况下，小瓶也可以从收集机构向下移动，即使在小瓶上形成霜。该小瓶通过包含用于密封小瓶的密封件的引导件保持在适当位置，当它被升高到适当位置时。

7. 发明授权

US5901603A Liquid level monitor 失效
标题翻译：液位监视器
公开(公告)号：US5901603A
公开(公告)日：1999-05-11
申请号：US116266
申请日：1998-07-16
申请人： Robert R. Fiedler
发明人： Robert R. Fiedler
IPC分类号： G01F23/18 , F16K7/00 , F16K7/12 , F16K7/14 , G01F1/00 , G01F23/14 , G01F23/16 , G01F23/00
CPC分类号： G01F1/002 , G01F23/164 , G01F23/168
摘要： A liquid level monitor using a pressure actuated sensor to replace the open bubble tube. Air flows down the supply tube as in the bubbler, but rather than being released into the water, the air enters a chamber that has one movable wall, such as a diaphragm, that is acted on from the inside by pressurized air and from the outside by the hydrostatic head of the water. When the water pressure exceeds the chamber air pressure, the movable wall is pressed against an air outlet and does not allow air in the chamber to escape through the air outlet. One embodiment uses a diaphragm disposed over the air outlet; however, the concept may be extended to several other movable members, such as a piston with low actuation force. When the air chamber pressure exceeds the water pressure, the movable member moves away from the air outlet, releasing air and causing the chamber pressure to drop down to the water pressure.
摘要翻译：液位监视器，使用压力传感器来代替开放的气泡管。空气沿着起泡器沿着供气管向下流动，而不是被释放到水中，空气进入具有一个可移动壁（例如隔膜）的室，该活动壁通过加压空气和从外部作用在内部由静水头的水。当水压超过室内空气压力时，可移动壁被压靠在空气出口上，并且不允许室中的空气通过空气出口逸出。一个实施例使用设置在空气出口上方的隔膜; 然而，该概念可以延伸到几个其它可移动构件，例如具有低致动力的活塞。当空气室压力超过水压时，可移动构件远离空气出口移动，释放空气并使室压力下降到水压。

8. 发明授权

US5755559A Apparatus and method for pumping supercritical fluid and measuring flow thereof 失效
标题翻译：用于泵送超临界流体并测量其流量的装置和方法
公开(公告)号：US5755559A
公开(公告)日：1998-05-26
申请号：US673177
申请日：1996-06-26
申请人： Robert William Allington , Daniel Gene Jameson , Dale A. Davison , Dale Clay , Robin R. Winter , Yoossef Tehrani
发明人： Robert William Allington , Daniel Gene Jameson , Dale A. Davison , Dale Clay , Robin R. Winter , Yoossef Tehrani
IPC分类号： B01D11/00 , B01D11/02 , B01D11/04 , F04B9/04 , F04B15/08 , F04B49/06 , F04B53/08 , F04B53/14 , F16K15/18 , G01F1/34 , G01N1/34 , G01N1/40 , G01N30/02 , G01N30/28 , G01N30/60 , G01N35/04 , G21F5/015 , F04B49/00
CPC分类号： G01N1/34 , B01D11/0203 , B01D11/0407 , F04B15/08 , F04B49/065 , F04B53/08 , F04B53/143 , F04B9/042 , F16K15/183 , G01F1/34 , G01N1/40 , G01N30/28 , G21F5/015 , F04B2201/0209 , F04B2205/03 , F04B2205/05 , F04B2205/09 , F05B2230/41 , F05C2201/0493 , F05C2253/12 , G01N2001/4033 , G01N2001/4061 , G01N2030/6013 , G01N2035/0441 , G01N30/02
摘要： In a piston pump for pumping liquid carbon dioxide at a temperature below 30 degrees Fahrenheit and pressures at least as high as 7500 psi, the volume leaving the pump is determined by measuring only pressure or other parameter related to flow and movement of the plunger. The position of the piston is measured and the resulting displacement is integrated to determine volume of fluid pumped.
摘要翻译：在用于在低于30华氏度的温度下泵送液体二氧化碳和至少高达7500psi的压力的活塞泵中，通过仅测量与柱塞的流动和运动相关的压力或其它参数来确定离开泵的体积。测量活塞的位置，并将所得到的位移整合在一起，以确定泵送的流体体积。

9. 发明授权

US5701646A Method of making a sensor 失效
标题翻译：制作传感器的方法
公开(公告)号：US5701646A
公开(公告)日：1997-12-30
申请号：US564793
申请日：1995-11-29
申请人： Frederick Alan Nabity , Paul George Wright , Raymond Hulinsky , Douglas Timothy Carson
发明人： Frederick Alan Nabity , Paul George Wright , Raymond Hulinsky , Douglas Timothy Carson
IPC分类号： F04B43/12 , G01F1/72 , G01F3/00 , G01F3/20 , G01L9/00 , G01N1/14 , G01N35/04 , H01L41/22
CPC分类号： F04B43/12 , G01F1/72 , G01F3/00 , G01F3/20 , G01L9/0001 , G01N1/14 , F04B2205/06 , G01N2035/0491 , Y10S310/80 , Y10T29/42
摘要： A method of making a sensor wherein flexible conduit means is assembled with a fixture having a strain-sensitive film and electrical connections are made to the film whereby variations in fluid pressure in the conduit means can be detected.
摘要翻译：制造传感器的方法，其中柔性导管装置与具有应变敏感膜和电连接的夹具组装在一起，从而可以检测导管装置中的流体压力的变化。

10. 发明授权

US5690828A 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：US5690828A
公开(公告)日：1997-11-25
申请号：US601250
申请日：1996-02-14
申请人： Dale Lee Clay , Robert William Allington , Phillip Bearnard Liescheski, III , Robin Randall Winter , Daniel Gene Jameson
发明人： Dale Lee Clay , Robert William Allington , Phillip Bearnard Liescheski, III , Robin Randall Winter , Daniel Gene Jameson
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 , B01D11/00 , B01D17/12
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： To supply supercritical fluid to an automatic supercritical fluid extractor and collect extract from the extractor, sample holding cartridges are lifted one by one in series by an elevator plug into a pressure chamber. An inlet at the top of the cartridge engages a pressure vessel inlet for the extractant so that extractant flows into the cartridge and into the space between the cartridge and inner walls of the pressure chamber. The outlets from the cartridge and pressure vessel communicate with the collector and exhaust through passageways in the plug. The plug has cleaning ports for cleaning seals and the outlet from the cartridge flows past the seals. The collector lifts vials into place and can precool the collection solvent, and later as part of the collection procedure, heat and pressurize the collector.
摘要翻译：为了将超临界流体提供给自动超临界流体提取器并从提取器收集提取物，样品保持盒由电梯塞一个接一个地提升到压力室中。药筒顶部的入口接合用于提取剂的压力容器入口，使得萃取剂流入药筒并进入药筒和压力室的内壁之间的空间。墨盒和压力容器的出口与收集器连通，并通过插头中的通道排出。插头具有用于清洁密封件的清洁端口，并且墨盒的出口流过密封件。收集器将小瓶提升到适当位置，并可预先收集溶剂，然后作为收集过程的一部分，对收集器进行加热和加压。

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