发明名称 Furnace waste water freeze protection method
摘要 A method to prevent freezing of water in a conduit that carries the water out of a building. The method uses a device that alternately accumulates the water in a container and then dumps it. The water is then carried to the outside of the building through a conduit. The water, being released in batches, does not have time to freeze in the conduit.
申请公布号 US5361795(A) 申请公布日期 1994.11.08
申请号 US19940210443 申请日期 1994.03.21
申请人 POLLARD, ALBERT C. 发明人 POLLARD, ALBERT C.
分类号 E03B7/12;F24H8/00;(IPC1-7):E03B7/12;F24H3/02 主分类号 E03B7/12
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