Sprinkler head nozzle assembly with adjustable arc, flow rate and stream angle
OwnerCarl L.C. Kah, Carl L.C. Kahinventors
Life of this patent
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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.
Claims66
A sprinkler head nozzle assembly comprising:
- a housing including an inlet for pressurize water and an outlet downstream of the inlet;
- a rotating arc adjustment ring mounted on the housing such that rotation of the arc adjustment ring extends and reduces an arcuate opening formed between the arc adjustment ring and the housing, wherein the size of the arcuate opening defines an arc of coverage provided by the 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 extending through the housing and the arcuate opening out of the nozzle assembly.
The sprinkler head nozzle assembly wherein the bottom deflector surface is made of a flexible material.
A sprinkler head nozzle assembly comprising:
- 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.
The sprinkler head nozzle assembly of claim 32, wherein the viscous brake assembly further comprises:
- a cavity including a viscous liquid;
- and
- a rotor press fitted onto the central shaft which passes through the cavity, such that rotation of the disc and the shaft, which are connected to the rotating distributor is impeded by the viscous liquid.
A sprinkler head nozzle assembly comprising:
- 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 threaded 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.
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 and formed in the distributor;
- a shaft extending through the viscous braking chamber and on which the distributor rotates;
- a braking disc connected to the shaft such that the distributor rotates relative to the shaft and the braking disc, the braking disc including a plurality of spiral vanes formed on an underside thereof such that as the distributor rotates relative to the braking disc, the viscous liquid is drawn to the center of the braking disc;
- and
- a plurality of recirculation openings formed through the braking disc and operable to allow the viscous fluid drawn to the center of the braking disc to pass through the braking disc and out the top of the disc;
- wherein the flow of the viscous liquid in the braking chamber and through the braking disc increases the braking force of the viscous braking assembly.
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;
- a shaft extending through the viscous braking chamber and attached to the rotating distributor such that the shaft rotates with the distributor;
- a cylindrical rotor connected to the shaft to rotate with the shaft and including a plurality of spiral vanes formed on a side surface thereof such that as the rotor rotates with the shaft, the viscous liquid is pumped upward or downward along the rotor by the spiral vanes;
- and
- a plurality of recirculation openings formed through the rotor and operable to allow the viscous liquid pumped upward or downward along the rotor to pass through the rotor and out the opposite end thereof;
- wherein the flow of the viscous liquid in the braking chamber and through the rotor increases the braking force of the viscous braking assembly.
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 and formed in the distributor;
- a shaft extending through the viscous braking chamber and on which the distributor rotates;
- a braking disc connected to the shaft such that the distributor rotates relative to the shaft and the braking disc, the braking disc including a recess formed in a bottom surface thereof;
- and
- a wave washer spring positioned in the recess of the braking disc such that it is positioned between a bottom plate of the viscous braking chamber and the braking disc to set the distance between the disc and the bottom plate, wherein
- this distance changes depending on at least one of a flow rate and pressure of water directed at the distributor in the sprinkler head nozzle assembly such that a braking force provided by the viscous brake assembly varied depending on the flow rate and pressure.
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;
- a shaft extending through the viscous braking chamber and attached to the rotating distributor such that the shaft rotates with the distributor;
- a tapered rotor connected to the shaft to rotate with the shaft;
- and
- a wave washer spring positioned between a top of the tapered rotor and a top portion of the braking chamber to set a distance between the tapered rotor and the top portion of the braking chamber,
- wherein this distance changes depending on at least one of a flow rate and pressure of water directed at the distributor in the sprinkler head nozzle assembly such that a braking force provided by the viscous brake assembly varies with the flow rate and pressure.
Dependencies are inferred from the claim text.