发明名称 Irrigation systems control
摘要 An irrigation control system includes a rotary water motor operatively associated with valves to provide that the water motor is either in the full on or full off condition, dependent upon alignment of the irrigation line. The irrigation control system also includes a rotary water motor operatively associated with a valve, and a shut-down system is included for closing such valve upon loss of water pressure in a safety line.
申请公布号 US4155679(A) 申请公布日期 1979.05.22
申请号 US19770820889 申请日期 1977.08.01
申请人 R M WADE AND 发明人 CORNELIUS, GAIL;OLSON, LLOYD C
分类号 A01G25/09;(IPC1-7):B05B9/02 主分类号 A01G25/09
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