发明授权
US5564904A Method of evacuating a single fluid in an enclosure containing a mixture
of fluid
失效
在包含流体混合物的外壳中抽空单个流体的方法
- 专利标题： Method of evacuating a single fluid in an enclosure containing a mixture of fluid
- 专利标题（中）： 在包含流体混合物的外壳中抽空单个流体的方法
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申请号： US545137申请日： 1995-10-19
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公开(公告)号： US5564904A公开(公告)日： 1996-10-15
- 发明人: James R. Heckman
- 申请人： James R. Heckman
- 申请人地址： FL Palm Harbor
- 专利权人： Ryland Engineering Corporation
- 当前专利权人： Ryland Engineering Corporation
- 当前专利权人地址： FL Palm Harbor
- 主分类号： F04B49/02
- IPC分类号： F04B49/02 ; G01M3/16 ; G01N27/416 ; G01N27/60 ; G01N33/18 ; G01N33/28 ; F04B49/00
摘要：
A sensor can detect the difference in potential between a probe and the fluid into which it is immersed, and a signal generated by the probe representing this difference in potential is used to activate an oscillator circuit. By varying the conditions at which current in the oscillator circuit begins to oscillate, various liquids can be detected and identified.
公开/授权文献
- US5014354A Anti-abrasion protective device 公开/授权日：1991-05-14
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