Fluid handling – Ambient condition change responsive – For controlling soil irrigation
Reexamination Certificate
2005-03-31
2010-11-23
Fitzgerald, John (Department: 2856)
Fluid handling
Ambient condition change responsive
For controlling soil irrigation
C073S073000
Reexamination Certificate
active
07836910
ABSTRACT:
Moisture sensor devices and methods associated with operation of the moisture sensor devices are disclosed herein. One embodiment includes a moisture sensor and controller device adapted to be placed in soil comprising a switch adapted to be coupled to a power control line of an irrigation controller, the power control line for sending an activating power signal to an irrigation valve; a control circuit coupled to the switch; and a sensor circuit coupled to the control circuit and adapted to provide a signal to the control circuit, the signal corresponding to a moisture level of the soil; wherein the control circuit is adapted to control the switch to interrupt the activating power signal based on the signal from the sensor circuit; wherein the switch and the control circuit are both external to the irrigation controller.
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Dresselhaus Daniel D.
O'Brien Kevin G.
Fitch Even Tabin & Flannery
Fitzgerald John
Rain Bird Corporation
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