发明名称 |
Self-contained cryogenic gas sampling apparatus and method |
摘要 |
Apparatus for obtaining a whole gas sample, composed of: a sample vessel having an inlet for receiving a gas sample; a controllable valve mounted for controllably opening and closing the inlet; a valve control coupled to the valve for opening and closing the valve at selected times; a portable power source connected for supplying operating power to the valve control; and a cryogenic coolant in thermal communication with the vessel for cooling the interior of the vessel to cryogenic temperatures. A method of obtaining an air sample using the apparatus described above, by: placing the apparatus at a location at which the sample is to be obtained; operating the valve control to open the valve at a selected time and close the valve at a selected subsequent time; and between the selected times maintaining the vessel at a cryogenic temperature by heat exchange with the coolant.
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申请公布号 |
US5501080(A) |
申请公布日期 |
1996.03.26 |
申请号 |
US19940355689 |
申请日期 |
1994.12.14 |
申请人 |
LOCKHEED IDAHO TECHNOLOGIES COMPANY |
发明人 |
MCMANUS, GARY J.;MOTES, BILLY G.;BIRD, SUSAN K.;KOTTER, DALE K. |
分类号 |
B01D8/00;G01N1/22;G01N1/42;(IPC1-7):B01D8/00 |
主分类号 |
B01D8/00 |
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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