专利名称：Automatic water control apparatus发明人：Aaron Goldsmith申请号：US07/645660申请日：19910125公开号：US05117855A公开日：19920602
摘要：An automatic water control system with a venturi has a bypass conduit so thatthe venturi does not act to limit the flow of water to demands made downstream of thewater control system. Further, the automatic water control means has a light sensitivecontrol to allow water flow only during day or night by controlling the transmission ofthe vacuum pulled by the venturi to a porous moisture sensor.
申请人：GOLDSMITH; AARON
代理人：Lewis Anten
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