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US 11,826,765 B2Granted
Sprinkler head nozzle assembly with adjustable arc, flow rate and stream angle
AssigneeK-Rain Manufacturing Corp.
InventorDanhui Luo
Life of this patent
Estimating the term…
Abstract
A sprinkler head nozzle assembly in accordance with an embodiment of the present invention includes an adjustable nozzle operable to extend and reduce an arcuate opening 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 nozzle member, and operable to deflect a flow of water from the arcuate opening out of the nozzle assembly.
Claims12
A sprinkler assembly comprises:
- a base;
- a nozzle element mounted in the base and including an arcuate opening through which a stream of water passes;
- an arc of coverage adjustment element mounted in the base and operatively connected to the nozzle element and accessible from an exterior of the sprinkler assembly to expand and contract the arcuate opening in the nozzle element to adjust an arc of coverage provided by the stream of water provided by the nozzle element;
- a shaft extending through the base, the nozzle element, and the arc of coverage adjustment element and extending above the base, wherein the shaft is mounted to be axially movable relative to the base, the nozzle element and the arc of coverage adjustment element, such that the shaft moves upward and downward independent of the nozzle element and the arc of coverage adjustment element;
- and
- a rotating distributor mounted on a top end of the shaft and rotatable with respect thereto, the rotating distributor positioned to receive the stream of water and distribute the water outward and away from the nozzle assembly in the arc of coverage.
3 more elements
A sprinkler assembly comprises:
- a base;
- a nozzle element mounted in the base and including an arcuate opening through which a stream of water passes,
- wherein the nozzle element further comprises:
- a lower stationary valve element including:
- a cylindrical lower portion;
- a conical upper portion, the conical upper portion including:
- a stepped and spiraled top surface;
- a radially extending rib;
- a disk shaped middle element including one or more openings formed therein around a portion of the disk shaped middle element;
- and
- an upper element rotatably mounted on the disk shaped middle element, the upper element including:
- a vertically extending element extending from a top surface of the upper element, wherein the vertically extending element rotates between a first position and a second position to vary a length of the arcuate opening defined between the vertically extending element and the radially extending rib to vary the arc of coverage of the sprinkler assembly;
- an arc of coverage adjustment element mounted in the base and operatively connected to the nozzle element and accessible from an exterior of the nozzle assembly to expand and contract the arcuate opening in the nozzle element to adjust an arc of coverage provided by the stream of water provided by the nozzle element;
- a shaft extending through the base, the nozzle element, and the arc of coverage adjustment element and extending above the base, the shaft axially movable relative to the base;
- and
- a rotating distributor mounted on a top end of the shaft and rotatable with respect thereto, the rotating distributor positioned to receive the stream of water and distribute the water is outward and away from the nozzle assembly in the arc of coverage.
13 more elements
Dependencies are inferred from the claim text.