发明名称 |
Check valve |
摘要 |
A check valve particularly useful for water well applications. The valve components are positioned at the low pressure, downstream side of a flexible poppet. A flexible guide, shaped generally as an inverted top hat, snaps into place in an annular groove and responds to longitudinally directed forces from the water flow and a biasing spring to forcibly retain the guide in the groove. A stem affixed to the poppet slides within an aperture of the guide and restricts the poppet to generally longitudinal motion.
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申请公布号 |
US4535808(A) |
申请公布日期 |
1985.08.20 |
申请号 |
US19830511807 |
申请日期 |
1983.07.08 |
申请人 |
DICKEN MANUFACTURING COMPANY |
发明人 |
JOHANSON, LEONARD T.;FORRESTER, HARRY L. |
分类号 |
F16K15/06;(IPC1-7):F16K15/06 |
主分类号 |
F16K15/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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