发明申请
- 专利标题： Gate valve
- 专利标题（中）： 闸阀
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申请号： US10555221申请日： 2004-04-30
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公开(公告)号： US20070075288A1公开(公告)日： 2007-04-05
- 发明人: Stephen Matte , Steven Young , Joseph Johnson
- 申请人： Stephen Matte , Steven Young , Joseph Johnson
- 申请人地址： US CA PALO ALTO 94304
- 专利权人： VARIAN, INC.
- 当前专利权人： VARIAN, INC.
- 当前专利权人地址： US CA PALO ALTO 94304
- 国际申请： PCT/US04/13574 WO 20040430
- 主分类号： F16K25/00
- IPC分类号： F16K25/00
摘要：
The gate valve includes a valve housing (12) having a fluid conduit (14) and defining a valve seat (16) and a support surface (18), a seal plate (20), a counter plate (22) having cushion (72) vulcanized to a surface facing the support surface (18), and an actuator (34) for moving the seal plate and the counter plate between respective open and closed positions. The cushion is configured to prevent metal-to-metal contact between the counter plate and the support surface of the valve housing.
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