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특허 상세정보

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Smart irrigation sprinklers

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B05B-012/08    A01G-025/16   
미국특허분류(USC) 239/64 ; 239/69 ; 239/70 ; 239/310
출원번호 US-0229555 (1988-08-08)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 130  인용 특허 : 3
초록
▼

An improved automated irrigation system having localized moisture needs input to the control function. There is a sprinkler head connected to a supply of water under pressure by a pipe having a valve therein. A moisture sensing probe is placed in the soil adjacent the sprinkler head for developing an electrical signal representing the moisture content of the soil surrounding the probe. There is irrigation bypass logic disposed at the probe and operably connected to the valve and the probe for comparing the moisture content of the soil surrounding the pro...

대표
청구항
▼

In an irrigation system wherein a sprinkler head is selectably connected to a supply of water under pressure through a primary valve, the improvement comprising: (a) moisture sensing probe means placed in the soil adjacent the sprinkler head for developing an electrical signal representing the moisture content of the soil surrounding said probe means; (b) irrigation bypass logic means disposed at said probe means and operably connected to the valve and said probe means for comparing the moisture content of the soil surrounding said probe means to pre-est...

이 특허에 인용된 특허 (3)

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  2. Hirsch Michael (Pacific Palisades CA). Irrigation control system. USP1983084396149.
  3. Miller, Richard N.; Ray, K. Bruce. System for optimum irrigating and fertilizing. USP1985104545396.

이 특허를 인용한 특허 피인용횟수: 130

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