Water sprinkler
OwnerRobert E. DeWittinventor
Life of this patent
Estimating the term…
Abstract
A water sprinkler develops any of several predetermined patterns of water coverage of regular or irregular shape and of varying sizes. The sprinkler includes first a plurality of pattern-defining apertures which are contoured to pass varying but predetermined amounts of water from a fixed sampling aperture as a sprinkler nozzle rotates in either or both angular directions about a vertical axis. Pattern size is incrementally adjustable in one embodiment by a member having tapered apertures of varying sizes interposed between the fixed sampling aperture and the pattern-defining apertures. Pattern size and shape are finely adjusted by a parallel flow line including a valve for providing small additional or slightly reduced flow volumes. Rounded patterns are effected entirely through the parallel flow line.
Claims17
A water sprinkler for distributing water over a desired area of regular or irregular shape, the sprinkler comprising:
- a sprinkler body adapted for fixed placement with respect to said area;
- a spray head mounted rotatably upon said sprinkler body;
- a water inlet port formed in said sprinkler body and communicating to a pressurized source of water;
- a water outlet port in said sprinkler body communicating to said spray head;
- primary pattern generation means for controlling the pattern of water distribution from said spray head, said primary pattern generation means comprising:
- a first member defining a sampling aperture communicating to said inlet port, and
- a second member defining at least two pattern-forming apertures one or more of which communicate to at least a portion of the sampling aperture, the area of each pattern-forming aperture which communicates to the sampling aperture being limited to regulate the volume of water flowing through said second member from the sampling aperture, and
- a third member comprising a land area in facially-sealing relationship to said second member and which is movable selectively to close from none to all of said pattern-forming aperture(s), and wherein
- one of the first and second members rotates with the spray head while the other is relatively fixed in the sprinkler body;
- and
- secondary pattern generation means for adjusting the definition of the pattern of water distribution, the secondary pattern generation means comprising a variable flow port communicating between the water inlet and water outlet ports in parallel with the flow through the sampling and pattern-forming apertures,
- whereby the shape and size of the distribution pattern may easily be regulated.
A water sprinkler for distributing water over a desired pattern, the sprinkler comprising, in combination,
- a spray head which automatically moves reciprocally in either direction about a vertical axis and which includes angular stops and means for reversing the direction of rotation of the spray head;
- a fixed sprinkler body defining a pressurized water inlet port and a water outlet port directed into said reciprocable head;
- and
- a water valving and pattern generation means for controlling the pattern of water distribution through said spray head, the generation means comprising:
- a first member defining a sampling aperture in communication with said inlet port,
- a second member defining at least two pattern-forming apertures, each said pattern-forming aperture having a limited passage communicating with the sampling aperture to regulate the volume of water flowing through the second member and wherein one of the first and second members rotates with the reciprocable spray head, and
- a third member comprising a valve land which is selectively movable to block flow from at least one of said pattern-forming apertures, whereby to permit selection of a pattern to be produced by the sprinkler.
Dependencies are inferred from the claim text.