发明公开
- 专利标题： A CHECK VALVE WITH A SPIRAL COIL SEAL
- 专利标题（中）： 用螺旋形线圈硬密封球阀
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申请号： EP05742592.8申请日： 2005-05-17
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公开(公告)号： EP1768799A1公开(公告)日： 2007-04-04
- 发明人: TENG, Alex , GODWIN, Harold , ILMONEN, Robert
- 申请人： HUSKY INJECTION MOLDING SYSTEMS LTD.
- 申请人地址： 500 Queen Street South Bolton Ontario L7E 5S5 CA
- 专利权人： HUSKY INJECTION MOLDING SYSTEMS LTD.
- 当前专利权人： HUSKY INJECTION MOLDING SYSTEMS LTD.
- 当前专利权人地址： 500 Queen Street South Bolton Ontario L7E 5S5 CA
- 代理机构： Dearling, Bruce Clive
- 优先权： US876584 20040628
- 国际公布： WO2006000077 20060105
- 主分类号： B22D17/20
- IPC分类号： B22D17/20 ; F16K15/08
摘要：
A seal for a check valve for a metal molding machine. The seal is provided by the combination of a peripheral groove in an outer surface of the check valve and a helically wound core in the groove. The helically wound coil is expandable into sealing engagement with a cylindrical wall of the molding machine. The helically wound coil may be movable laterally in the groove between a melt channel open position and a melt channel closed position to open or seal the melt channel.
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