Fluid handling – Ambient condition change responsive – For controlling soil irrigation
Patent
1994-06-01
1994-12-27
Chambers, A. Michael
Fluid handling
Ambient condition change responsive
For controlling soil irrigation
137 782, 13762412, 239 70, F16K 1736
Patent
active
053756177
ABSTRACT:
An override control system for an automatic sprinkler system of the type having a control box with a timer for turning on and off at least one sprinkler valve, each sprinkler valve having a valve line which connects to a common line. The override control system includes a probe assembly, having a probe support, a probe having spaced apart electrically conductive members supported by the probe support, and a removable reservoir connectable to the probe support for containing the probe for above ground support while the probe assembly is being used above the ground. The reservoir is removable so that the electrically conductive members are in direct contact with ground dirt when the reservoir is removed and the members are positioned beneath the ground. An electrical circuit is positioned between each valve line and the common line. The electrical circuit includes a relay system so that if moisture between the electrically conductive members is above a predetermined threshold the relay system of the electrical circuit will be activated inhibiting sprinkler operation. If moisture between the electrically conductive members is below the predetermined threshold, the relay system will not energize, thereby allowing said sprinkler system to operate normally.
REFERENCES:
patent: 2577337 (1951-12-01), Lancaster
patent: 3212714 (1965-10-01), Davis et al.
patent: 3488000 (1970-01-01), Cramer
patent: 3500844 (1975-03-01), Sanner
patent: 4014359 (1977-03-01), Sanner
patent: 4114647 (1978-09-01), Sturman et al.
patent: 4541446 (1985-09-01), Hogan
patent: 4613764 (1986-09-01), Lobato
patent: 4838296 (1989-06-01), Brooks
patent: 4919165 (1990-04-01), Lloyd
patent: 4921001 (1990-05-01), Pittsinger
patent: 4941501 (1990-07-01), Bireley
LandOfFree
Override control system for an automatic sprinkler system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Override control system for an automatic sprinkler system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Override control system for an automatic sprinkler system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-912224