Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 16, 2011
Patent Application Number
12182921
Date Filed
July 30, 2008
Patent Primary Examiner
Patent abstract
A soil moisture sensing system includes a housing embedded in the soil and having a water chamber adapted to receive water from a water source. A controlled drainage assembly includes a semi-permeable membrane coupled to said water chamber for controllably releasing water from the water chamber. A magnetically actuated switch is coupled to a float in the water chamber to provide a control signal when the water level in the water chamber is at a predetermined level.
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