发明授权
- 专利标题： Method and apparatus for watering cultivated land, providing a protection for cultivated plants
- 专利标题（中）： 浇灌耕地的方法和装置，为栽培植物提供保护
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申请号： US280169申请日： 1988-12-05
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公开(公告)号： US4988041A公开(公告)日： 1991-01-29
- 发明人: Jean L. Ducrot , Ayme' de la Chevreliere
- 申请人： Jean L. Ducrot , Ayme' de la Chevreliere
- 专利权人： Ducrot Jean L,Chevreliere Ayme De
- 当前专利权人： Ducrot Jean L,Chevreliere Ayme De
- 优先权： FRX8717145 19871209
- 主分类号： A01G13/06
- IPC分类号： A01G13/06
摘要：
Method and apparatus for protecting plants against the effects of a drop in ambient temperature by causing the formation and preservation of dew or rime, according to the circumstances. The apparatus comprises a "dew box" which measures the ambient temperature and the dew point temperature, a set of comparators for triggering the start of spraying and the start of water heating as a function of ambient temperature, and a control system, including a calculating device, for regulating the temperature of the spraying water.
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