发明公开
- 专利标题： Fluid pump
- 专利标题（中）： 流体泵
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申请号： EP84104495申请日： 1984-04-19
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公开(公告)号： EP0129018A3公开(公告)日： 1985-01-30
- 发明人: Spears, Harry L.
- 申请人： Spears, Harry L.
- 专利权人： Spears, Harry L.
- 当前专利权人： Spears, Harry L.
- 优先权： US487287 19830421
- 主分类号： F04B47/02
- IPC分类号： F04B47/02
摘要：
A fluid pumpfor raising petroleumfluidsthrough production tubing is completed oil wells includes two mechanically actuated valves, one of which moves logitudinally within the pump housing, and the other valve which rotates within the pump housing.
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