发明授权
- 专利标题： Gas detectors
- 专利标题（中）： 气体探测器
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申请号： US919564申请日： 1978-06-27
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公开(公告)号： US4173886A公开(公告)日： 1979-11-13
- 发明人: Thomas Archbold , Michael R. G. Sharp
- 申请人： Thomas Archbold , Michael R. G. Sharp
- 申请人地址： GB2 London
- 专利权人： British Gas Corporation
- 当前专利权人： British Gas Corporation
- 当前专利权人地址： GB2 London
- 主分类号： G01N33/00
- IPC分类号： G01N33/00 ; G01N31/00
摘要：
This invention relates to portable gas detectors having means for aspirating a sample of the atmosphere to be tested into the vicinity of two sensor devices, and including a water-trap comprising valve means arranged, in response to a drop in pressure in the flow line when water is accidentally sucked in with an aspirated sample, to temporarily close the sample flow path or to open a by-pass for detecting the presence of both natural gas and manufactured gas in the atmosphere.
公开/授权文献
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