A rotatable sprinkler including a water outlet nozzle providing a pressurized axial stream of water along a nozzle axis, and a rotatable water deflector assembly, downstream of the water outlet nozzle and receiving the pressurized axial stream of water therefrom, the rotatable water deflector assemb
A rotatable sprinkler including a water outlet nozzle providing a pressurized axial stream of water along a nozzle axis, and a rotatable water deflector assembly, downstream of the water outlet nozzle and receiving the pressurized axial stream of water therefrom, the rotatable water deflector assembly being rotated during sprinkler operation by the pressurized axial stream of water about a rotatable water path deflector assembly axis, the rotatable water deflector assembly including a first rotatable water path deflector portion and a second rotatable water path deflector portion, which is user rotatable relative to the first rotatable water path deflector portion about a second rotatable water path deflector axis, thereby enabling user selection of at least one water distribution parameter.
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1. A rotatable sprinkler including: a water outlet nozzle providing a pressurized axial stream of water along a nozzle axis; anda rotatable water deflector assembly, downstream of said water outlet nozzle and receiving said pressurized axial stream of water therefrom, said rotatable water deflector
1. A rotatable sprinkler including: a water outlet nozzle providing a pressurized axial stream of water along a nozzle axis; anda rotatable water deflector assembly, downstream of said water outlet nozzle and receiving said pressurized axial stream of water therefrom, said rotatable water deflector assembly being rotated during sprinkler operation by said pressurized axial stream of water about a rotatable water path deflector assembly axis, said rotatable water deflector assembly including: a first rotatable water path deflector portion; anda second rotatable water path deflector portion, which is user rotatable relative to said first rotatable water path deflector portion about a second rotatable water path deflector axis, thereby enabling user selection of at least one water distribution parameter,said first rotatable water path deflector portion including a first rotatable water path deflector generally planar portion, said first rotatable water path deflector generally planar portion being formed with a plurality of radially-extending protrusions. 2. A rotatable sprinkler according to claim 1 and wherein said rotatable water path deflector assembly axis and said second rotatable water path deflector axis are coaxial. 3. A rotatable sprinkler according to claim 1 and wherein said nozzle axis, said rotatable water path deflector assembly axis and said second rotatable water path deflector axis are all coaxial. 4. A rotatable sprinkler according to claim 1 and also comprising a base portion, which includes a water inlet connector, and a nozzle defining portion which defines said water outlet nozzle. 5. A rotatable sprinkler according to claim 4 and also comprising a membrane arranged upstream of said nozzle defining portion. 6. A rotatable sprinkler according to claim 4 and also comprising a body portion, which retains said nozzle defining portion, and a top portion, mounted onto said body portion. 7. A rotatable sprinkler according to claim 1 and wherein: said first rotatable water path deflector portion also includes: a bottom, generally cylindrical portion; andan upper axle-defining portion; andsaid first rotatable water path deflector generally planar portion is arranged between said generally cylindrical portion and said axle-defining portion. 8. A rotatable sprinkler according to claim 7 and wherein said bottom, generally cylindrical portion defines: a first water pathway having mutually spaced planar side surfaces and a first water path deflector surface, which includes an initial generally vertical planar surface portion, which extends vertically to a curved surface portion, said curved surface portion extending vertically and radially outwardly to an upwardly and radially outwardly planar surface portion anda generally circular cylindrical portion extending from a location vertically spaced from said planar surface portion to a surface of said first rotatable water path deflector generally planar portion. 9. A rotatable sprinkler according to claim 1 and wherein said first rotatable water path deflector generally planar portion is also formed with a a pointer. 10. A rotatable sprinkler according to claim 1 and wherein said radially-extending protrusions are each formed on a top surface thereof with a pair of engagement protrusions for user-changeable, selectable azimuth engagement of said second rotatable water path deflector portions. 11. A rotatable sprinkler according to claim 10 and wherein said engagement protrusions limit the counterclockwise travel of said second rotatable water path deflector portions relative to said first rotatable water path deflector portion at each of a plurality of user selectable azimuthal relative orientations thereof. 12. A rotatable sprinkler according to claim 1 and wherein said second rotatable water path deflector portion includes a second rotatable water path deflector generally planar portion, defining a generally flat top surface and a generally flat bottom surface, and a plurality of depending portions, extending downwardly from said generally flat bottom surface, said second rotatable water path deflector generally planar portion being formed with a central aperture, centered about said second rotatable water path deflector axis. 13. A rotatable sprinkler according to claim 12 and wherein said second rotatable water path deflector portion also comprises a plurality of retaining protrusions, extending upwardly from said generally flat top surface and being operative for rotatably displaceable engagement with said first rotatable water path deflector portion. 14. A rotatable sprinkler according to claim 12 and wherein said second rotatable water path deflector generally planar portion includes a radially outwardly extending portion having a downwardly depending portion, which defines a curved inner surface, which defines a secondary azimuthal water deflection and reaction surface. 15. A rotatable sprinkler according to claim 14 and wherein said secondary azimuthal water deflection and reaction surface is slightly curved and is arranged to be tangent to an imaginary circle about said second rotatable water path deflector axis only along a small portion of the extent of said secondary azimuthal water deflection and reaction surface. 16. A rotatable sprinkler according to claim 1 and wherein said second rotatable water path deflector portion defines a plurality of user-selectable pressurized water flow pathways. 17. A rotatable sprinkler according to claim 16 and wherein: said second rotatable water path deflector portion includes a second rotatable water path deflector generally planar portion; andsaid plurality of user-selectable pressurized water flow pathways include at least two of:a first user-selectable pressurized water flow pathway defined by a first reaction surface and at least one additional pathway surface, wherein said first reaction surface defines an angle α1 in an X-Y plane, parallel to said second rotatable water path deflector generally planar portion, with respect to an X axis thereof, such that pressurized water engages a curved inner surface, which defines a downstream azimuthal water deflection and reaction surface and defines an angle α1′ in said X-Y plane with respect to a line parallel to a Y axis of said X-Y plane;a second user-selectable pressurized water flow pathway defined by a second reaction surface and at least one additional pathway surface, wherein said second reaction surface defines an angle α2 in said X-Y plane, different from said angle α1, with respect to said Y axis;a third user-selectable pressurized water flow pathway defined by a third reaction surface and at least one additional pathway surface, wherein said third reaction surface defines an angle α3 in said X-Y plane, different from said angle α1 and said angle α2, with respect to said X axis; anda fourth user-selectable pressurized water flow pathway defined by a fourth reaction surface and at least one additional pathway surface, wherein said fourth reaction surface defines an angle α4, different from said angle α1, said angle α2 and said angle α3, with respect to said Y axis. 18. A rotatable sprinkler according to claim 17 and wherein at least one of said first, second, third and fourth user-selectable pressurized water flow pathways also defines an elevation limiting surface. 19. A rotatable sprinkler according to claim 18 and wherein at least one of said first, second, third and fourth user-selectable pressurized water flow pathways also defines an elevation limiting surface in which: said first user-selectable pressurized water flow pathway is also defined by a first planar elevation limiting surface, which defines an angle β1, in an X-Z plane, perpendicular to said X-Y plane, with respect to a plane parallel to a Y-Z plane, perpendicular to said X-Y plane and to said X-Z plane, and a downstream azimuthal water deflection and reaction surface, which defines an angle β1′ with respect to a plane parallel to said Y-Z plane in a plane parallel to said X-Z plane;said second user-selectable pressurized water flow pathway is also defined by a second planar elevation limiting surface, which defines an angle β2, different from said angle β1, with respect to a plane parallel to said X-Y plane in a plane parallel to said Y-Z plane;said third user-selectable pressurized water flow pathway is also defined by a third planar elevation limiting surface, which defines an angle β3, different from said angle β2 and said angle β1, with respect to a plane parallel to said X-Y plane in a plane parallel to said X-Z plane; andsaid fourth user-selectable pressurized water flow pathway is also defined by a fourth planar elevation limiting surface, which defines an angle β4, different from said angle β3, said angle β2 and said angle β1, with respect to a plane parallel to the X-Y plane in a plane parallel to the Y-Z plane. 20. A rotatable sprinkler according to claim 1 and wherein: said second rotatable water path deflector portion includes a second rotatable water path deflector generally planar portion defining an X-Y plane parallel thereto and an X-Z plane and a Y-Z plane perpendicular thereto; andsaid sprinkler has at least two of first, second, third and fourth operative orientations in which: in said first operative orientation a pointer is directed to a first azimuthal location on said second rotatable water path deflector portion, indicated by a first indicium, and a pressurized water stream extends upwardly and radially outwardly into engagement with: a first reaction surface, which defines an angle α1 in said X-Y plane, with respect to an X axis thereof;a first planar elevation limiting surface, which defines an angle β1 in a plane parallel to said X-Z plane, with respect to a plane parallel to said X-Y plane, anda curved downstream azimuthal water deflection and reaction surface, which defines a water stream exit angle α1′, different from said angle α1, in said X-Y plane, with respect to a line parallel to a Y axis, and a water stream exit angle β1′ in a plane parallel to said X-Z plane, with respect to a plane parallel to said Y-Z plane;in said second operative orientation a pointer is directed to a second azimuthal location on said second rotatable water path deflector portion, indicated by a second indicium, and a pressurized water stream extends upwardly and radially outwardly into engagement with: a second reaction surface, which defines an angle α2, different from said angle α1, in said X-Y plane, with respect to said Y axis; anda second planar elevation limiting surface, which defines an angle β2, different from said angle β1, in a plane parallel to said Y-Z plane, with respect to a plane parallel to said X-Y plane;in said third operative orientation a pointer is directed to a third azimuthal location on said second rotatable water path deflector portion, indicated by a third indicium, and a pressurized water stream extends upwardly and radially outwardly into engagement with: a third reaction surface, which defines an angle α3, different from said angle α1 and said angle α2, in said X-Y plane, with respect to said X axis; anda third planar elevation limiting surface, which defines an angle β3, different from said angle β1 and said angle β2, in a plane parallel to said X-Z plane, with respect to a plane parallel to said X-Y plane; andin said fourth operative orientation a pointer is directed to an azimuthal location on said second rotatable water path deflector portion indicated by a fourth indicium and a pressurized water stream extends upwardly and radially outwardly into engagement with: a fourth reaction surface, which defines an angle α4, different from said angle α1, said angle α2 and said angle α3, in said X-Y plane, with respect to said Y axis; anda fourth planar elevation limiting surface, which defines an angle β4, different from said angle β1, said angle β2 and said angle β3, in a plane parallel to said Y-Z plane, with respect to a plane parallel to said X-Y plane.
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