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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0634291 (1996-04-18) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 40 인용 특허 : 0 |
A water saving device for use with domestic hot water systems of the noncirculating storage tank heater type uses a hydraulic motor to drive a water pump to pump water from the hot water pipe to a cold water pipe. Pumping begins when a hot water tap connected to the device is turned on and the water
A method of conserving water by pumping cold water in a hot water line into a cold water line when hot water is desired from a hot water tap, comprising: connecting a water pump which is operated by a hydraulic motor between a hot water line and a cold water line near a hot water tap where hot water
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