Fluid sprinkling – spraying – and diffusing – With selectively preset flow cutoff or initiating means – By rate of flow or volume means
Patent
1994-05-31
1995-06-06
Grant, William A.
Fluid sprinkling, spraying, and diffusing
With selectively preset flow cutoff or initiating means
By rate of flow or volume means
239 67, 239542, 137408, 47 79, B05B 1212
Patent
active
054215153
ABSTRACT:
An automatic irrigation device for plants which is automatically activated in correlation with the evapotranspiration needs of the plants comprises an open-top fluid evaporation pan containing the irrigating fluids, the fluids being capable of evaporating from the pan, thereby reducing its weight. A fluid conduit attached to a fluid inlet port conducts the fluids to the plants and the pan while a valve, interposed between the inlet port and the conduit and operatively connected to the pan, controls the conduction of the fluids to the pan and the plants. A counter-force member exerts a force on the pan in a direction opposite to that of the force of gravity. When the pan holds more than a first amount of fluid the valve closes and the device enters the evaporating stage. When the pan holds less than a second, lesser amount of fluid the valve opens and the device enters the irrigating stage. The device can be used to automatically irrigate a large number of plants simultaneously. A method for automatically watering plants is also described.
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Barish Benjamin J.
Grant William A.
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