发明名称 |
METHOD OF AND SYSTEM FOR GENERATING A STREAM OF A GASEOUS MIXTURE OF CONSTANT CONCENTRATION |
摘要 |
Gas mixtures having precise compositions are prepared by separately pumping the components in liquid phase through piping, vaporizing the components, blending the components and analyzing the mixture for composition. A signal sent to a control unit causes any necessary change in the rate of pumping of the liquid components to reduce the difference between the measured concentration and the desired concentration. When the composition is within desired limits it is charged into gas cylinders. <IMAGE> |
申请公布号 |
PL326193(A1) |
申请公布日期 |
1998.11.23 |
申请号 |
PL19980326193 |
申请日期 |
1998.05.07 |
申请人 |
THE BOC GROUP,INC |
发明人 |
BIRCH DAVID W.;MICKE ANDRE;HWANG SHUEN-CHENG;COSEY LESLI B.;SCHMIDT CARL W.;PHILLIPS ROBERT F.;WILSON D.BRUCE |
分类号 |
F17C5/06;F17C13/04;(IPC1-7):B01F3/02 |
主分类号 |
F17C5/06 |
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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