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    12.
    发明专利
    未知

    公开(公告)号：DE69133114D1

    公开(公告)日：2002-10-24

    申请号：DE69133114

    申请日：1991-07-11

    Applicant: ISCO INC

    Inventor： ALLINGTON ROBERT WILLIAM ,  WINTER ROBIN RANDALL ,  CLAY DALE LEE ,  JAMESON DANIEL GENE

    IPC: F16J12/00 ,  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

    Abstract: Apparatus (10) for supercritical extraction including a source (12) of fluid at a pressure greater than the critical pressure of the said fluid; a heater (22) accepting fluid at a pressure greater than its critical pressure and heating the said fluid to a temperature greater than its critical temperature so that the said fluid becomes a supercritical fluid characterized by an openable extraction cartridge (26) having a fluid inlet passage (42), space (254) for the insertion of sample (134) and a fluid outlet passage adapted to pass supercritical fluid over or through the said sample contained within it, thereby accomplishing supercritical extraction of the sample said heating means including a recess (24) in which the cartridge (26) is placed during the said extraction, with the cartridge (26) being substantially enclosed as a result of its said placement in the recess.

    13.
    发明专利
    未知

    公开(公告)号：DE69328745T2

    公开(公告)日：2000-12-28

    申请号：DE69328745

    申请日：1993-02-22

    Applicant: ISCO INC

    Inventor： JAMESON DANIEL GENE ,  ALLINGTON ROBERT WILLIAM

    IPC: G01N1/00 ,  G01N30/02 ,  G01N30/32 ,  G01N30/34 ,  G05D11/13 ,  G05D16/20

    Abstract: To control a solvent composition in a supercritical fluid system, a first pump pumps a first solvent through a first conduit into a mixer and a second pump pumps a second solvent through a second conduit into the mixer. First and second transducers measure the pressure in the first and second conduits and generate first and second signals proportional to the pressures. Each pressure signal is multiplied by a corresponding programmed concentration signal and compared to the programmed pressure in a feedback system to generate an error signal. The error signal is multiplied by concentration signals from a programmer to control the pumping rate of each pump. The pumps pressurize each fluid one at a time at the start of a run. The pressurization process is also used for producing disturbance-free flow as delivery is changed from one pump to another during prolonged runs.

    APPARATUS AND METHOD FOR SUPERCRITICAL FLUID EXTRACTION OR SUPERCRITICAL FLUID CHROMATOGRAPHY.
    19.
    发明公开
    APPARATUS AND METHOD FOR SUPERCRITICAL FLUID EXTRACTION OR SUPERCRITICAL FLUID CHROMATOGRAPHY. 失效
    VORRICHTUNG UND方法ZUR EXTRAKTION ODER色谱MIT EINEM SUPERKRITISCHEN FLUIDUM。

    公开(公告)号：EP0662013A4

    公开(公告)日：1995-09-20

    申请号：EP94922707

    申请日：1994-07-20

    Applicant: ISCO INC

    Inventor： ALLINGTON ROBERT WILLIAM ,  WALTERS HENRY LEROY ,  JAMESON DANIEL GENE ,  TEHRANI YOOSSEF

    IPC: B01D15/08 ,  B01D11/00 ,  B01D11/02 ,  B01D11/04 ,  G01N1/40 ,  G01N30/02 ,  G01N30/28 ,  G01N30/32 ,  G01N30/60 ,  G01N30/82

    CPC classification number: B01D11/0203 ,  B01D11/0407 ,  G01N1/40 ,  G01N30/02 ,  G01N30/28 ,  G01N30/32 ,  G01N30/60 ,  G01N30/82 ,  G01N2030/6008 ,  G01N2030/6013 ,  B01D15/40

    Abstract: A variable-orifice fluid restrictor (11) 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 (1240) 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 (1240) is adjacent to the outer surface of the probe and the orifice means (1240) is adjustable with the adjusting stem. The end of the 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 (1240) for varying the restriction of the fluid passing through the adjustable orifice (1240).

    Abstract translation: 与超临界萃取器或色谱仪一起使用的可变孔流体限制器（11）包括用于高于其临界压力的压力的流体的入口管线，具有内表面和外表面以及近端和远端的延伸的管状探针。 探针的近端朝向入口线布置。 探针的远端包括适于计量流体并具有第一和第二孔构件的可调节孔装置（1240）以及具有第一和第二端的调节杆。 可调节孔装置（1240）与探针的外表面相邻并且孔装置（1240）可利用调节杆进行调节。 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（1240）以改变流过可调节孔的流体的限制 （1240）。

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