Sprinkler head nozzle assembly with adjustable arc, flow rate and stream angle
OwnerCarl L. C. Kah, Jr., Carl L. C. Kah, IIIinventors
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Abstract
A sprinkler head nozzle assembly in accordance with an embodiment of the present invention includes a housing including an inlet for pressurize water and an outlet downstream of the inlet, a valve member, operable to extend and reduce an arcuate opening at the outlet of the housing, wherein the size of the arcuate opening indicates the arc of coverage of the sprinkler head nozzle assembly and a rotating distributor, mounted on a central shaft extending through the housing and the valve member, and operable to deflect a flow of water from the arcuate opening out of the nozzle assembly.
Claims6
A viscous brake assembly for use in a sprinkler head nozzle assembly with a rotating distributor to limit the speed of the rotating distributor, the viscous brake assembly comprising:
- a viscous braking chamber filled with a viscous liquid, the viscous braking chamber including at least one seal to prevent entry or exit of the viscous liquid such that all of the viscous liquid remains in the viscous braking chamber;
- a shaft extending through the viscous braking chamber and attached to a braking disc such that the distributor rotates relative to the shaft and braking disc;
- the braking disc formed on the shaft and located in the viscous braking chamber, the braking disc including at least one vane formed on a surface thereof to direct viscous liquid radially inward toward a center of the braking disc as the distributor rotates, wherein the center of the braking disc coincides with an axis of rotation of the distributor.
Dependencies are inferred from the claim text.