发明授权
- 专利标题： Liquid chromatograph pump and control method therefor
- 专利标题（中）： 液相色谱泵及其控制方法
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申请号： US10608072申请日： 2003-06-30
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公开(公告)号： US06923916B1公开(公告)日： 2005-08-02
- 发明人: Kenji Hiraku , Kunihiko Takao , Hironori Kaji , Masahito Ito
- 申请人： Kenji Hiraku , Kunihiko Takao , Hironori Kaji , Masahito Ito
- 申请人地址： JP Tokyo
- 专利权人： Hitachi High-Technologies Corporation
- 当前专利权人： Hitachi High-Technologies Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Antonelli, Terry, Stout & Kraus, LLP
- 优先权： JP2002-303697 20021018
- 主分类号： G01N30/32
- IPC分类号： G01N30/32 ; F04B11/00 ; F04B13/00 ; F04B49/06 ; G01N30/34 ; B01D15/08
摘要：
In a pump for feeding a liquid for chromatography, first and second plungers form first and second volumes respectively together with first and second chambers, the first plunger is prevented from changing the first volume sufficiently for feeding the liquid between the first and second volumes when the second plunger decreases the second volume to discharge the fluid from the second volume to an outlet path of the pump for the chromatography.
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