Fluid sprinkling – spraying – and diffusing – Processes – Of discharge modification of flow varying
Patent
1993-05-05
1993-12-07
Merritt, Karen B.
Fluid sprinkling, spraying, and diffusing
Processes
Of discharge modification of flow varying
239206, 239230, 239231, 239DIG1, B05B 308
Patent
active
052676897
ABSTRACT:
A deflector cap for use in connection with a conventional pop-up or other type of rotary sprinkler head is held in a fixed angular position with respect to the sprinkler head housing by means of a downwardly extending rod that slides within a tube fixedly attached to the sprinkler head housing. An annular array of individually-adjustable, wedge-shaped, flat deflector plates is mounted to the underside of the deflector cap. Each of the deflector plates is formed to have an outer wide end and an inner narrow end. The inner end of each of the deflector plates is hingedly attached to the deflector cap at a uniform radial distance from the center of the deflector cap, thereby permitting vertical movement of the outer ends of each of the deflector plates. Vertical movement of the individual deflector plates is facilitated by a screw adjustment mechanism associated with each of the deflector plates. A thin annular sheet of mylar or other flexible material is attached to the underside of the array of deflector plates adjacent the outer ends thereof to provide a smooth water stream transition as the rotating nozzle of the sprinkler head rotationally passes beneath each of the deflector plates. As the nozzle of the sprinkler head rotates during operation, the water stream emitted therefrom will be deflected to varying distances by each of the deflector plates in turn as a function of the arcuate or rotational position of the nozzle in accordance with the vertical adjustment previously made to each of the individual deflector plates.
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Hein William E.
Merritt Karen B.
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