Fluid sprinkling – spraying – and diffusing – With cutoff or flow varying means operated by means... – With overriding second control means
Reexamination Certificate
2006-06-20
2006-06-20
Scherbel, David A. (Department: 3752)
Fluid sprinkling, spraying, and diffusing
With cutoff or flow varying means operated by means...
With overriding second control means
C063S033000, C063S033000, C073S30400R
Reexamination Certificate
active
07063271
ABSTRACT:
A sprinkler circuit responds to the presence of water and limits watering accordingly. The sprinkler circuit comprises a control circuit and a moisture responsive circuit. The control circuit may be wired in series to a sprinkler cable at any point between a sprinkler controller (e.g., timer) and a sprinkler valve, and is powered by a valve signal sent from the sprinkler controller to the valve. The moisture responsive circuit includes two pairs of electrodes wired in series and residing at different depths. When resistance across both pairs of electrodes drops sufficiently, a relay in the control circuit opens and interrupts the valve signal to the valve.
REFERENCES:
patent: 3224676 (1965-12-01), Rauchwerger
patent: 4657039 (1987-04-01), Bireley
patent: 4693419 (1987-09-01), Weintraub et al.
patent: 4796654 (1989-01-01), Simpson
patent: 4801865 (1989-01-01), Miller et al.
patent: 4838296 (1989-06-01), Brooks
patent: 4941501 (1990-07-01), Bireley
patent: 5148985 (1992-09-01), Bancroft
patent: 5424649 (1995-06-01), Gluck et al.
patent: 5445176 (1995-08-01), Goff
patent: 5445178 (1995-08-01), Feuer
patent: 5749521 (1998-05-01), Lattery
patent: 5813606 (1998-09-01), Ziff
patent: 5859536 (1999-01-01), Stockton
patent: 6016971 (2000-01-01), Welch et al.
patent: 6298285 (2001-10-01), Addink et al.
patent: 6559659 (2003-05-01), Cuming
patent: 6628501 (2003-09-01), Toyoda
patent: 6685104 (2004-02-01), Float et al.
patent: 2003/0230638 (2003-12-01), Dukes et al.
Averill, Jr. Edgar W.
Green Kenneth L.
Hogan James S.
Scherbel David A.
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