Oscillatable nozzle sprinkler with integrated adjustable arc and flow
OwnerCarl L. C. Kah, Jr.inventor
Life of this patent
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Abstract
An oscillatable nozzle sprinkler has a primary valve for controlling flow through a nozzle in a nozzle housing. An arc set control sets a desired angle of oscillation of the nozzle housing. An integrated system is set forth so that when a desired angle of oscillation is selected, the primary valve is positioned to provide a desired precipitation rate. A secondary valve is provided to achieve a uniform precipitation coverage.
Claims30
A rotary drive sprinkler having a riser housing, said riser housing having an output shaft means, a nozzle assembly means for receiving a supply of water, said nozzle assembly means having a nozzle for directing water therefrom, said output shaft means being connected to said nozzle assembly means, means for oscillating said output shaft means and said nozzle assembly means, arc set means for setting a desired angle of oscillation of said nozzle assembly means, and means for varying the water flow through said nozzle as said arc set means is set.
An oscillating sprinkler having a selectable angle of oscillation for distributing water over different size areas of coverage, means for adjusting said oscillating sprinkler to apply water over a desired size area of coverage, means for automatically applying a uniform precipitation rate over any selected size area of coverage.
A variable nozzle having a front end and a rear end, a flow passage therethrough from said front end to said rear end, said flow passage having a throat opening, said throat opening having a bottom portion and a top portion, a flow throttling member positioned to move between a maximum flow "out" position and a minimum flow "in" position within said throat opening to throttle flow, said top portion of said nozzle throat having a top and two sides, said flow throttling member being shaped in cross-section to cooperate with the top and two sides of said top portion of said nozzle throat to slide therein, the bottom of said flow throttling member coacting with said nozzle throat including said bottom portion to form a varying area.
A rotary drive sprinkler having a nozzle with a front end and a rear end, a flow passage therethrough from said rear end to said front end, said flow passage having a throat opening for a primary flow, said nozzle having means providing two secondary flows which impinge on each other to provide sprinkler coverage close in to the sprinkler, and wherein said means providing two secondary flows has a cavity intersecting the front end of said nozzle, one of the secondary flows impinging on the other of the secondary flows within said cavity.
A nozzle housing having a top thereon, said nozzle housing having a nozzle for directing water therefrom, a rotatable member mounted in said housing, said rotatable member having a top surface extending to the top of said housing, means for varying the water flow through said nozzle as said rotatable member is rotated, said nozzle housing top and said top surface of said rotatable member having cooperating indicia to indicate the rate of precipitation being produced by the sprinkler.
Dependencies are inferred from the claim text.