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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0630193 (2000-08-01) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 26 인용 특허 : 3 |
In a hot and cold water distribution system, cooled down water in the hot water distribution line is automatically drained toward the cold water distribution line by a connection system consisting essentially of a centrifugal pump in series with a valve oriented to prevent the flow of cold water int
[ What is claimed is:] [1.]1. A hot and cold water distribution system wherein potable hot water is distally delivered through a hot water distribution line from a water heater to a hot water faucet, and cold water is delivered through a cold water distribution line to said water heater and to a col
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