Nutating sprinkler with rotary shaft and seal
AssigneeNelson Irrigation Corporation
InventorPaul D. Davisson
Life of this patent
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Abstract
A nutating sprinkler includes a body portion having a nozzle at one end and a spray plate supported thereon at an opposite end downstream of the nozzle. The spray plate has a plurality of stream distributing grooves formed on one side thereof configured to cause the spray plate to rotate when struck by a stream emitted from the nozzle. The spray plate also includes a flexible connector coupling the spray plate to a free end of a first rigid shaft seated in a housing at the opposite end, such that the spray plate is caused to wobble about a common center of motion as it rotates.
Claims16
A sprinkler comprising a body portion supporting a nozzle and a rotatable spray plate in axially spaced relationship to said nozzle, said spray plate having a flexible coupling projecting therefrom and secured to one end of a relatively rigid shaft mounted in a housing located downstream of said nozzle.
A sprinkler comprising a body portion having a nozzle at one end and a spray plate supported thereon at an opposite end downstream of said nozzle, said spray plate having a plurality of stream distributing grooves formed on one side thereof configured to cause said spray plate to rotate when struck by a stream emitted from said nozzle;
- and wherein said spray plate includes a flexible connector coupling said spray plate to a free end of a first rigid shaft seated in a housing at said opposite end downstream of said nozzle, such that said spray plate is caused to wobble about a common center of motion as it rotates.
Dependencies are inferred from the claim text.