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公开(公告)号:US07954506B2
公开(公告)日:2011-06-07
申请号:US10420213
申请日:2003-04-21
申请人: John David Swan
发明人: John David Swan
IPC分类号: F16K17/38
CPC分类号: E03B7/12 , Y10T137/1189 , Y10T137/1963 , Y10T137/1987 , Y10T137/6416 , Y10T137/86035 , Y10T137/86171
摘要: A plumbing system operable to automatically introduce antifreeze into the hot and cold water systems responsive to a signal from a controller. The controller activates the system automatically at a predetermined ambient temperature. The system can also be reconfigured manually.
摘要翻译: 管道系统可操作以响应于来自控制器的信号自动将防冻剂引入热水和冷水系统。 控制器在预定的环境温度下自动启动系统。 也可以手动重新配置系统。