发明名称 |
Liquid chromatograph pump with dual cylinders and dual plungers |
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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申请公布号 |
US7063513(B2) |
申请公布日期 |
2006.06.20 |
申请号 |
US20040998937 |
申请日期 |
2004.11.30 |
申请人 |
HITACHI HIGH-TECHNOLOGIES CORPORATION |
发明人 |
HIRAKU KENJI;TAKAO KUNIHIKO;KAJI HIRONORI;ITO MASAHITO |
分类号 |
F04B3/00;G01N30/32;F04B11/00;F04B13/00;F04B49/06;G01N30/34 |
主分类号 |
F04B3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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