Fluid handling – Self-proportioning or correlating systems – Self-proportioning flow systems
Patent
1981-04-22
1983-06-28
Nilson, Robert G.
Fluid handling
Self-proportioning or correlating systems
Self-proportioning flow systems
91267, 91271, 222132, 222135, 222145, 417399, F16K 1900
Patent
active
043900356
ABSTRACT:
A water-type spray application system employing a hydraulically-operated motor which is operated by the source of supply of the water or base carrier liquid and where the hydraulic motor dependently controls the amount of chemicals injected into the water system for application to lawns. The dependent chemical applications may be independently controlled and independently monitored as to the relationship of injection to the flow of water. The hydraulic motor employs a reciprocating piston and valving arrangement wherein the valving system operates to reverse the pressure differential across the piston upon reaching the end of the piston stroke so that a reciprocating action is obtained of a piston rod. The dependent metering systems involve an adjustable stroke mechanism which draws in liquids by suction and discharges fluids by pressure. The amount of fluids input and ejected from the metering system are a function of the stroke of the connecting rod from the hydraulic motor and the length of stroke applied to the piston rods can be varied.
REFERENCES:
patent: 398751 (1889-02-01), Rothenbucher
patent: 1097543 (1914-05-01), Glenn
patent: 2887094 (1959-05-01), Krukemeir
patent: 3260212 (1966-07-01), Johnson
patent: 3330211 (1967-07-01), Faro
patent: 3815621 (1974-06-01), Robinson
patent: 3967634 (1976-07-01), Scherer
patent: 4269327 (1981-05-01), Welch
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