发明授权
- 专利标题： Dual stage air compressor
- 专利标题（中）： 双级空气压缩机
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申请号： US627328申请日： 1984-07-02
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公开(公告)号： US4558994A公开(公告)日： 1985-12-17
- 发明人: Frank J. Viola , Erwin L. Schaub , Bernard C. Sharp , Raymond J. Evans
- 申请人： Frank J. Viola , Erwin L. Schaub , Bernard C. Sharp , Raymond J. Evans
- 申请人地址： OH Cleveland
- 专利权人： Parker-Hannifin Corporation
- 当前专利权人： Parker-Hannifin Corporation
- 当前专利权人地址： OH Cleveland
- 主分类号： F04B49/08
- IPC分类号： F04B49/08 ; F04B49/22 ; F04B49/00
摘要：
An electric motor driven portable air compressor consists of a reciprocating piston and cylinder arrangement with an intake throttling valve operative to unload the compressor above a predetermined pressure level. The throttling valve is a spring loaded plunger responsive to compressor output to close one of two inlet openings to reduce the charge of air in the cylinder. A stainless steel intake leaf spring is disposed between the cylinder and a two part die cast housing and is responsive to cylinder suction for control of the compressor.
公开/授权文献
- US5170380A Medication container holding device indicating usage time 公开/授权日：1992-12-08