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1.发明专利
公开(公告)号：JP2000065813A
公开(公告)日：2000-03-03
申请号：JP23462999
申请日：1999-08-20
Applicant: BIO RAD LABORATORIES
Inventor： DEWAELE CHRIS
Abstract: PROBLEM TO BE SOLVED: To prevent increase in a back pressure of a column because of fragments of solid accompanying a carrier fluid by constructing a filter material into a multilayer structure of non-woven sintered stainless steel fiber and gradually increasing density of the fiber along the flow direction in charging of the fiber. SOLUTION: A cartridge made of metal such as stainless steel is constructed into a hollow cylindrical tube 11. In the upstream end and the downstream end of a chamber 21 for a separator, screens 23, 24 made of sintered non-woven stainless steel fiber filter material discs are arranged, and in the screens 23, 24, the side provided with a larger pore size is oriented on the flow direction upstream side. As the screens 23, 24 are thin and flexible, they are supported by means of porous sintered stainless steel discs 25, 26. A difference in the pore size of the filters is about 1-50 μm and is abut 2-20 μm desirably. As the gradually variable filter material, a filter varied in about 3-6 steps is preferable.
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公开(公告)号：AU2007276733A1
公开(公告)日：2008-01-31
申请号：AU2007276733
申请日：2007-07-24
Applicant: BIO RAD LABORATORIES
Inventor： WIJNANT PASCAL , SURGELOOSE HILDE , DEWAELE CHRIS
Abstract: A prefilter element for continuous flow systems as illustrated by a high-performance liquid chromatography cartridge or column is constructed with a gradient filter that has a gradient in average pore size over its thickness, the pore size decreasing in the direction of flow. This prefilter element is retained in a housing separate from any functional components of the continuous-flow system other than the prefilter element itself, the prefilter element being separable from the other functional components to allow the prefilter to be replaced without disturbing any other functional components.
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公开(公告)号：CA2279745C
公开(公告)日：2008-05-06
申请号：CA2279745
申请日：1999-08-05
Applicant: BIO RAD LABORATORIES
Inventor： DEWAELE CHRIS
Abstract: Cartridges for high performance liquid chromatography are designed for use with a large number of repeated injections without excessive buildup of back pressu re by the inclusion of a filter medium consisting of sintered stainless steel fibers formed into a non--woven structure whose pore size decreases in the direction of flow down to a pore size of less than ten microns.
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Patent Agency Ranking
公开(公告)号：DE69939043D1
公开(公告)日：2008-08-21
申请号：DE69939043
申请日：1999-08-18
Applicant: BIO RAD LABORATORIES
Inventor： DEWAELE CHRIS
Abstract: Cartridges (11) for high performance liquid chromatography are designed for use with a large number of repeated injections without excessive buildup of back pressure by the inclusion of a filter medium (23,24) consisting of sintered stainless steel fibers formed into a nonwoven structure whose pore size decreases in the direction of flow down to a pore size of less than ten microns.
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公开(公告)号：CA2658777A1
公开(公告)日：2008-01-31
申请号：CA2658777
申请日：2007-07-24
Applicant: BIO RAD LABORATORIES
Inventor： WIJNANT PASCAL , DEWAELE CHRIS , SURGELOOSE HILDE
Abstract: A prefilter element for continuous flow systems as illustrated by a high- performance liquid chromatography cartridge or column is constructed with a gradient filter that has a gradient in average pore size over its thickness, the pore size decreasing in the direction of flow. This prefilter element i s retained in a housing separate from any functional components of the conti nuous-flow system other than the prefilter element itself, the prefilter ele ment being separable from the other functional components to allow the prefi lter to be replaced without disturbing any other functional components.
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公开(公告)号：CA2279745A1
公开(公告)日：2000-02-21
申请号：CA2279745
申请日：1999-08-05
Applicant: BIO RAD LABORATORIES
Inventor： DEWAELE CHRIS
Abstract: Cartridges for high performance liquid chromatography are designed for use with a large number of repeated injections without excessive buildup of back pressure by the inclusion of a filter medium consisting of sintered stainless steel fibers formed into a non-woven structure whose pore size decreases in the direction of flow down to a pore size of less than ten microns.
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公开(公告)号：WO2008014237A3
公开(公告)日：2008-08-07
申请号：PCT/US2007074182
申请日：2007-07-24
Applicant: BIO RAD LABORATORIES , DEWAELE CHRIS , WIJNANT PASCAL , SURGELOOSE HILDE
Inventor： DEWAELE CHRIS , WIJNANT PASCAL , SURGELOOSE HILDE
CPC classification number: G01N30/603 , B01D15/12 , G01N30/6091
Abstract: A prefilter element for continuous flow systems as illustrated by a high-performance liquid chromatography cartridge or column is constructed with a gradient filter that has a gradient in average pore size over its thickness, the pore size decreasing in the direction of flow. This prefilter element is retained in a housing separate from any functional components of the continuous-flow system other than the prefilter element itself, the prefilter element being separable from the other functional components to allow the prefilter to be replaced without disturbing any other functional components.
Abstract translation: 如高性能液相色谱柱或柱所示的用于连续流动系统的预过滤器元件由在其厚度上具有平均孔径梯度的梯度过滤器构成，孔径在流动方向上减小。 该预滤器元件被保持在与预滤器元件本身不同的任何功能部件的外壳中，预滤器元件可与其他功能部件分离，以允许预滤器被替换而不干扰任何其他功能部件。
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8.发明公开
公开(公告)号：EP2043755A4
公开(公告)日：2010-06-30
申请号：EP07813262
申请日：2007-07-24
Applicant: BIO RAD LABORATORIES
Inventor： DEWAELE CHRIS , WIJNANT PASCAL , SURGELOOSE HILDE
CPC classification number: G01N30/603 , B01D15/12 , G01N30/6091
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