Data processing: generic control systems or specific application – Specific application – apparatus or process – Mechanical control system
Reexamination Certificate
2005-11-18
2008-09-02
Jarrett, Ryan A (Department: 2121)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Mechanical control system
C137S078200, C239S069000
Reexamination Certificate
active
07421317
ABSTRACT:
A controlling and monitoring system for irrigation of localized areas of soil includes a water pipeline, a plurality of controllable irrigation valves, a plurality of field sensors measuring specific irrigation parameters, and a plurality of localized irrigation control units. Each of the control units has a sensor decoder connected to a specific one of the field sensors and a line decoder connected to a specific one of the irrigation valves. The system further includes a controller and power supply unit that applies a first alternating DC voltage signal to a two-wire cable interconnecting the controller and power supply unit and the control units. The cable provides power from the controller and power supply unit to each of the control units. The controller and power supply unit transmits schedules of instructions to the control units, and receives the irrigation parameters from the control units, through the cable.
REFERENCES:
patent: 3723753 (1973-03-01), Davis
patent: 4004612 (1977-01-01), Hummel, Jr. et al.
patent: 4007458 (1977-02-01), Hollabaugh
patent: 4131882 (1978-12-01), Hollabaugh et al.
patent: 4176395 (1979-11-01), Evelyn-Veere et al.
patent: 4535401 (1985-08-01), Penn
patent: 5023787 (1991-06-01), Evelyn-Veere
patent: 5434774 (1995-07-01), Seberger
patent: 5570030 (1996-10-01), Wightman
patent: 5839658 (1998-11-01), Sarver
patent: 5848609 (1998-12-01), Marchesseault et al.
patent: 6402048 (2002-06-01), Collins
patent: 6766221 (2004-07-01), Christiansen
patent: 6993416 (2006-01-01), Christiansen
patent: 7084741 (2006-08-01), Plummer
patent: 7146255 (2006-12-01), Christiansen
patent: 7206669 (2007-04-01), Christiansen
patent: 2004/0130378 (2004-07-01), Kihara
Jarrett Ryan A
Klein O'Neill & Singh, LLP
S-Rain Control A/S
LandOfFree
Two-wire controlling and monitoring system for the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Two-wire controlling and monitoring system for the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-wire controlling and monitoring system for the... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3989637