Fluid sprinkling – spraying – and diffusing – Processes
Reexamination Certificate
2007-08-28
2007-08-28
Ganey, Steven J. (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Processes
C239S063000, C239S069000, C239S070000, C239S200000, C700S014000, C700S284000, C137S078300
Reexamination Certificate
active
11328905
ABSTRACT:
Adaptive irrigation of vegetation is achieved with a probe implanted into the soil for detecting rootage wetness needs by measuring soil impedance with contacts distributed along the probe. When a dryness threshold indicating rootage needs is met at a depth ZBEGINpreviously entered into a control logic coupled to the probe, then irrigation is started. Irrigation is stopped when a wetness front is detected at depth Zend(i) automatically provided by the control logic. The depth of arrest of the drainage front Zfinal(i)descending below the depth Zend(i)is compared with a depth ZFINAL, also previously entered into the control logic. The depth Zend(i)is adapted at each irrigation cycle i for the drainage front to stop at the depth ZFINAL. The probe may be used to determine the depth ZBEGINwhere resistance drops are detected first, by measuring resistance over time.
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C.I.T. Controlled Irrigation Technologies Ltd.
Frishauf Holtz Goodman & Chick P.C.
Ganey Steven J.
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