公开(公告)号：DE69118032D1

公开(公告)日：1996-04-25

申请号：DE69118032

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.

公开(公告)号：DE69530807T2

公开(公告)日：2003-12-24

申请号：DE69530807

申请日：1995-03-02

Applicant: ISCO INC

Inventor： ALLINGTON ROBERT WILLIAM ,  JAMESON DANIEL GENE ,  DAVISON DALE A ,  CLAY DALE LEE ,  WINTER R ROBIN ,  TEHRANI YOOSSEF

IPC: 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

Abstract: The invention relates to a pumping system (12) for supercritical extraction comprising: inlet means adapted to be connected to a source of supercritical fluid; outlet means adapted to provide the pumped fluid to a pressure vessel (18 and 24A); and pumphead means (300) having a pumping chamber (336) communicating with said inlet means and with said outlet means; a piston (304); an inlet valve means controlling the flow of fluid into said pumping chamber (336) means through said inlet means; an outlet valve means controlling the flow of fluid from said pumping chamber means (336) through said outlet means; an inlet conduit means defining a flow path between said inlet valve and said pump chamber (336); and an outlet conduit means defining a flow path between said pump chamber (336) and said outlet valve means; characterized by an air-cooled thermoelectric-cooled heat exchanger means (386) for cooling both the inlet means and the pumphead means (300).

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.

公开(公告)号：DE69412393T2

公开(公告)日：1998-12-24

申请号：DE69412393

申请日：1994-03-02

Applicant: ISCO INC

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

IPC: 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: 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.

公开(公告)号：DE69224430D1

公开(公告)日：1998-03-19

申请号：DE69224430

申请日：1992-11-04

Applicant: ISCO INC

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

IPC: B01D11/00 ,  B01D11/02 ,  B01D11/04 ,  G01N30/02

公开(公告)号：DE69306910D1

公开(公告)日：1997-02-06

申请号：DE69306910

申请日：1993-10-18

Applicant: ISCO INC

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

IPC: B01D11/00 ,  B01D11/02 ,  B01D11/04 ,  G01N30/02

公开(公告)号：EP0639099A4

公开(公告)日：1996-11-06

申请号：EP94911446

申请日：1994-03-02

Applicant: ISCO INC

Inventor： CLAY DALE LEE ,  ALLINGTON ROBERT WILLIAM ,  LIESCHESKI PHILLIP BEARNARD II ,  WINTER ROBIN RANDALL ,  JAMESON DANIEL GENE

IPC: 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 classification number: F04B9/042 ,  B01D11/0203 ,  B01D11/0407 ,  F04B15/08 ,  F04B49/065 ,  F04B2205/03 ,  F04B2205/05 ,  F04B2205/09 ,  F05B2230/41 ,  F05C2201/0493 ,  F05C2253/12 ,  F16K15/183 ,  G01F1/34 ,  G01N1/34 ,  G01N1/40 ,  G01N30/02 ,  G01N30/28 ,  G01N2001/4033 ,  G01N2001/4061 ,  G01N2030/6013 ,  G01N2035/0441 ,  G21F5/015 ,  B01D15/40

Abstract: To supply supercritical fluid to an automatic supercritical fluid extractor and collect extract from the extractor, sample holding cartridges (30A) are lifted one by one in series by an elevator plug into a pressure chamber (24A). An inlet at the top of the cartridge (30A) engages a pressure vessel inlet for the extractant so that extractant flows into the cartridge (30A) and into the space between the cartridge and inner walls of the pressure chamber (24A). The outlets from the cartridge (30A) and pressure vessel communicate with the collector (408) and exhaust through passageways in the plug. The plug has cleaning ports for cleaning seals and the outlet from the cartridge (30A) flows past the seals. The collector (408) lifts vials into place and can precool the collection solvent, and later as part of the collection procedure, heat and pressurize the collector (408).