Fluid handling – Systems – Programmer or timer
Patent
1979-09-17
1981-06-02
Cohan, Alan
Fluid handling
Systems
Programmer or timer
239 70, 307 38, A01G 2500
Patent
active
042705738
ABSTRACT:
A controller which can be set to operate a group of sprinkler control valves, which can be easily set and tested for proper automatic operation, and which can operate a sprinkler system in a variety of ways. The controller includes a clock, a series of dividers for dividing down the frequency of the clock, and a group of controls that can be operated to begin sprinkling cycles at predetermined times and close the sprinkling control valves after predetermined durations. A selector control can be utilized to effectively increase the frequency of the clock, as by bypassing a divider stage, to operate the system at a very rapid rate, which is useful in testing the system for automatic operation after it is set and for repetitive short duration sprinkling cycles. The controller has a cascade input that enables the beginning of a cycle of operation by an external signal, to permit repeated cycling of the system, and to synchronize a group of controllers.
REFERENCES:
patent: 3989006 (1976-11-01), Sturman
patent: 3991735 (1976-11-01), Riggs
patent: 4101786 (1978-07-01), Ruggles
Grill Benjamin
Sturman Oded E.
Cohan Alan
Hydronic Systems, Inc.
LandOfFree
Controller for fluid flow systems does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Controller for fluid flow systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controller for fluid flow systems will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1860740