Patents by Inventor Jean L. Ducrot

Jean L. Ducrot has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for watering cultivated land, providing a protection for cultivated plants
    Patent number: 4988041
    Abstract: 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.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: January 29, 1991
    Inventors: Jean L. Ducrot, Ayme' de la Chevreliere