Fluid sprinkling – spraying – and diffusing – With selectively preset flow cutoff or initiating means – Timer means
Patent
1989-06-21
1991-04-23
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
With selectively preset flow cutoff or initiating means
Timer means
239 99, 239240, B05B 304, B05B 108
Patent
active
050093681
ABSTRACT:
Various apparatus and methods are shown for controlling the emissions from sprinkler heads in an irrigation system to cause variable volume irrigation at a constant pressure. In one approach, a rotating sprinkler head is rotated at different speeds as a function of the radial position of the emerging water stream so that dryer areas have slower rotational movement of the sprinkler head and, thereby, a greater volume of water discharged thereon. In another approach, the water to the sprinkler head is turned on and off during the irrigation period rather than being turned on at the beginning and off at the end. As a result, multiple heads which are individually turned off and on have a better average water distribution. Likewise, high-precipitation sprinkler heads are made to operate with an average low-precipitation so that run-off and water waste are virtually eliminated.
REFERENCES:
patent: 3090563 (1963-05-01), Cheeseboro
patent: 3321138 (1967-05-01), Curry
patent: 3383047 (1968-05-01), Hauser
patent: 4277029 (1981-07-01), Rabitsch
patent: 4613077 (1986-09-01), Aronson
Iggulden Jerry R.
Streck Donald A.
Kashnikow Andres
Light Ideas Incorporated
Merritt Karen B.
Streck Donald A.
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