发明申请
- 专利标题： Stepped cylinder piston pump
- 专利标题（中）： 步进气缸活塞泵
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申请号： US11797211申请日： 2007-05-01
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公开(公告)号： US20070257064A1公开(公告)日： 2007-11-08
- 发明人: Heiner Ophardt
- 申请人： Heiner Ophardt
- 优先权： CA2,545,905 20060505
- 主分类号： B65D88/54
- IPC分类号： B65D88/54
摘要：
A piston pump in which, when the piston is stored or when the pump is not operative, the piston is received inside a portion of the chamber with the piston in a position having a larger diameter than portions of the chamber in which the piston is received when the piston is operative for pumping.
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