Fluid handling – Systems – Programmer or timer
Patent
1977-09-26
1984-07-24
Nilson, Robert G.
Fluid handling
Systems
Programmer or timer
13762414, 137892, 239101, B05B 108
Patent
active
044613199
ABSTRACT:
A device operable from a primary supply of water under pressure, such as a domestic water supply, to be used with irrigation and sprinkler systems, that modulates the flow of water supplied to different outlets, herein called supply heads, periodically from a minimum to a maximum flow rate and also provides a means by which liquid fertilizer and insecticides and the like can be dispensed and applied evenly and safely over a surface without human contact. As contemplated by the invention, supply pressure from a primary water supply is transformed into rotational motion which in turn, operates a rotary valve creating a water effluent therefrom that varies in its flow rate in accordance with the cyclical periodic operation of said rotary valve. This water effluent is delivered to the supply heads of the irrigation or sprinkler system. The rotary valve may be disabled so as to permit nearly straight-through passage of the supply water. The device of the invention may be installed in an existing irrigation or sprinkler system, preferably downstream following a conventional anti-siphon valve so as to prevent any possible chemical migration and contamination into the primary water supply. Thus, using the advantages of the invention, a more even distribution of water over a surface may be accomplished thereby reducing water consumption due to saturation watering from the attendant wasteful run-off. The device may be used with conventional automatic timers.
REFERENCES:
patent: 944988 (1909-12-01), Slinack
patent: 1999804 (1935-04-01), De Loria
patent: 3747858 (1973-07-01), Krynicki
Nilson Robert G.
Ware Paul H.
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