发明授权
US08316876B2 Flushing device with removable drain ring for potable water systems
失效
用于饮用水系统的可拆卸排水环的冲洗装置
- 专利标题： Flushing device with removable drain ring for potable water systems
- 专利标题（中）： 用于饮用水系统的可拆卸排水环的冲洗装置
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申请号： US12502820申请日： 2009-07-14
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公开(公告)号： US08316876B2公开(公告)日： 2012-11-27
- 发明人: Daniel G. McKeague
- 申请人： Daniel G. McKeague
- 申请人地址： US MO St. Louis
- 专利权人： John C. Kupferle Foundry Company
- 当前专利权人： John C. Kupferle Foundry Company
- 当前专利权人地址： US MO St. Louis
- 代理机构： Polster, Lieder, Woodruff & Lucchesi, L.C.
- 主分类号： F16K3/30
- IPC分类号： F16K3/30 ; E03B9/02
摘要：
A drain ring adapted for use in a device for flushing a dead-end of an underground municipal water distribution system includes a pair of annular seals and a channel between the seals, an outlet passage extending from inside the ring to the channel, and a flapper adapted to close the outlet passage under the influence of at least one of pressure and flow. The drain ring is removably positioned between a shut-off valve and an outlet of the device.
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