发明授权
- 专利标题: Piston check valve
- 专利标题(中): 活塞检查阀
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申请号: US3684006D申请日: 1970-06-01
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公开(公告)号: US3684006A公开(公告)日: 1972-08-15
- 发明人: SPAHN WALTER
- 申请人: WALTER SPAHN , MESSER GRIESHEIM GMBH
- 专利权人: Walter Spahn,Messer Griesheim Gmbh
- 当前专利权人: Walter Spahn,Messer Griesheim Gmbh
- 优先权: DE1928180 1969-06-03
- 主分类号: F16K15/18
- IPC分类号: F16K15/18 ; F16K31/122 ; F28F27/02
摘要:
A check valve includes a valve housing having a valve cover, a valve seat and spring loaded valve diaphragm with a valve spindle, and base for the valve spindle. The free end of the spindle is made in the form of a piston and the valve spindle cover is in the form of a cylinder through which a blast of control gas enters.
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