Fluid sprinkling – spraying – and diffusing – Processes
Reexamination Certificate
2006-06-20
2006-06-20
Ganey, Steven J. (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Processes
C239S063000, C239S064000, C239S069000, C239S070000, C239S201000, C137S078300, C324S664000, C324S689000, C324S690000, C324S696000, C340S604000, C073S073000, C073S074000
Reexamination Certificate
active
07063270
ABSTRACT:
Irrigation systems, moisture sensors and related methods having a sensor embedded in the ground to sense moisture and help control watering. The sensor is responsive to capacitance changes from ground moisture variations. The sensor uses spaced insulated electrodes which are mounted within a granular filled chamber within a water-permeable shell. The sensor is mounted as part of a ground unit that also includes a high frequency driver that excites the sensor. The ground unit further has a detector circuit which produces a moisture indicating signal based on the capacitance which varies with ground moisture. Also disclosed are controllers that electrically isolate the ground units so that reliable moisture signals can be obtained and used to control irrigation. The controllers can be configured to provide multiple zone operation using a shared controller having shared or independent moisture adjusters.
REFERENCES:
patent: 2737615 (1956-03-01), Roby, Jr. et al.
patent: 2768028 (1956-10-01), Robinson
patent: 2812976 (1957-11-01), Hasenkamp
patent: 2906952 (1959-09-01), Horecky
patent: 3182914 (1965-05-01), Hosier
patent: 3195816 (1965-07-01), Mercer
patent: 3626286 (1971-12-01), Rauchwerger
patent: 3642204 (1972-02-01), McCloskey
patent: 4197866 (1980-04-01), Neal
patent: 4216789 (1980-08-01), Hasenbeck
patent: 4657039 (1987-04-01), Bireley et al.
patent: 4683904 (1987-08-01), Iltis
patent: 4693419 (1987-09-01), Weintraub et al.
patent: 4936333 (1990-06-01), Bireley
patent: 4941501 (1990-07-01), Bireley
patent: 4952868 (1990-08-01), Scherer, III
patent: 5260666 (1993-11-01), Dishman et al.
patent: 5341831 (1994-08-01), Zur
patent: 5424649 (1995-06-01), Gluck et al.
patent: 5546974 (1996-08-01), Bireley
patent: 5621669 (1997-04-01), Bjornsson
patent: 5749521 (1998-05-01), Lattery
patent: 5847568 (1998-12-01), Stashkiw et al.
patent: 6016971 (2000-01-01), Welch et al.
patent: 6401742 (2002-06-01), Cramer et al.
Bowers John R.
Bowers John W.
Ganey Steven J.
Gregory Randy A.
Gregory I.P. Law
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