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发明名称
Valve piston
摘要
A piston for use in spring-closed valves whose semi-toroidal shape minimizes the possibility of the piston jamming during tipping motions while providing maximum guidance, sealing area and maximum bearing material for resisting side wear.
申请公布号
US4437491(A)
申请公布日期
1984.03.20
申请号
US19820370358
申请日期
1982.04.21
申请人
BROWN, DAVID E.
发明人
BROWN, DAVID E.
分类号
F16K15/02;(IPC1-7):F16K15/00
主分类号
F16K15/02
代理机构
代理人
主权项
地址
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