发明授权
- 专利标题: Apparatus and method for measuring liquid depth
- 专利标题(中): 用于测量液体深度的装置和方法
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申请号: US80808申请日: 1987-08-03
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公开(公告)号: US4802363A公开(公告)日: 1989-02-07
- 发明人: John J. Fling , William F. Fling
- 申请人: John J. Fling , William F. Fling
- 专利权人: Fling John J,Fling William F
- 当前专利权人: Fling John J,Fling William F
- 主分类号: G01F23/04
- IPC分类号: G01F23/04 ; G01F23/58 ; G01F23/66
摘要:
A flotation device inside an elongate frame rises to the level of a liquid whose depth is being measured. The flotation device is locked in the frame while the apparatus is withdrawn from the liquid. The liquid level may then read from a scale on the frame.
公开/授权文献
- USD414404S Fastener for pipes and tubes 公开/授权日:1999-09-28
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