Title: Water sprinkler

Abstract: A water sprinkler is described for developing predetermined but variable patterns of water coverage. The sprinkler includes a plurality of pattern-defining apertures which are contoured in accordance with desired patterns of water coverage to pass varying but predetermined amounts of water as a sprinkler nozzle rotates. A sampling aperture progressively samples the outputs of selected pattern-defining apertures in synchronism with the rotation of the sprinkler nozzle so as to conform the water output of the nozzle to that of the desired pattern of water coverage.

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Inventors: DeWitt, Robert E. (Oswego, IL, US)

Application Number: 893268
Filing Date: 1978-04-05
Publication_date: 1979-12-25
Assignee:
Primary Class(es): 239/97 239/381, 239/DIG1
Other Classes:
US Patent Ref:

554628	Feb, 1896	Rocholl	239/237.
1618538	Feb, 1927	Kittinger	239/97.
2090284	Aug, 1937	Carlson	239/97.
2532356	Dec, 1950	Brown et al.	239/97.
2739839	Mar, 1956	Greener et al.	239/97.
2859064	Nov, 1958	Nelson	239/97.
4098461	Jul, 1978	Weller	239/383.

Other Refs:
Primary Examiner: Love, John J.
Assistant Examiner:
Attorney: Cook, Wetzel & Egan, Ltd.