发明名称 Electric programmer
摘要 An electric programmer is provided which has general utility, although it will be described herein for controlling electrically-operated water valves in a lawn sprinkler system. The programmer is constructed to control a plurality of different valves for successive time intervals at one or more predetermined time period during each day of the week, although means are provided to enable the programmer to skip one or more days, if so desired. The programmer to be described includes means which permits a separate setting to be manually established for each of the valves which determines the length of the time interval each valve is to be activated during the aforesaid time period.
申请公布号 US4097763(A) 申请公布日期 1978.06.27
申请号 US19770765882 申请日期 1977.02.07
申请人 RICHDEL, INC. 发明人 SAAREM, MYRL J.
分类号 H01H43/00;(IPC1-7):H01H7/00 主分类号 H01H43/00
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