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US 7,677,469 B1Granted
Sprinkler with reversing planetary gear drive
AssigneeHunter Industries, Inc.
InventorMichael L. Clark
Life of this patent
Estimating the term…
Abstract
A sprinkler for irrigating turf and/or landscaping includes a turbine and a nozzle. A planetary gear drive and a reversing mechanism rotatably coupling the turbine and the nozzle. The planetary gear drive includes at least a portion of the reversing mechanism.
Claims20
A sprinkler, comprising:
- a turbine;
- a nozzle;
- and
- a planetary gear drive and a reversing mechanism rotatably coupling the turbine and the nozzle, the planetary gear drive including at least a portion of the reversing mechanism having a shift gear that reciprocates between raised and lowered positions to engage different non-shifting gears and thereby change a direction of rotation of subsequent stages of the planetary gear drive.
1 more element
A sprinkler, comprising:
- a turbine;
- a gear train reduction connected to the turbine including a plurality of stages each having sun gears engaged with planet gears, one of the stages including a reciprocating shift sun gear for shifting a direction of rotation of an output stage of the gear train reduction;
- a nozzle turret;
- and
- reversing means coupling the output stage of the gear train reduction and the nozzle turret for rotating the nozzle turret and changing a direction of rotation of the nozzle turret.
2 more elements
A sprinkler, comprising:
- an outer case;
- a riser moveable between retracted and extended positions inside the outer case;
- a planetary gear drive mounted inside the riser;
- a turbine connected to an input shaft of the planetary gear drive;
- a nozzle turret;
- and
- a reversing mechanism coupling an output stage of the planetary gear drive and the nozzle turret including a mechanism that vertically shifts a gear within the planetary gear drive to shift a direction of rotation of the output stage.
4 more elements
A sprinkler, comprising:
- a turbine;
- a nozzle;
- and
- a planetary gear drive and a reversing mechanism rotatably coupling the turbine and the nozzle, the planetary gear drive including at least a portion of the reversing mechanism, the planetary gear drive including a shift sun gear that reciprocates between raised and lowered positions to engage different planet gears and thereby change a direction of rotation of subsequent stages of the planetary gear drive.
1 more element
Dependencies are inferred from the claim text.