Importance

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Abstract

A sprinkler comprising a body portion having a nozzle at one end and a cap assembly supported thereon at an opposite end, the cap assembly supporting a spray plate located downstream of the nozzle, the spray plate having 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; and wherein the spray plate includes a mounting shaft extending from the spray plate and having a part spherical head received within a bearing cage in the cap assembly, the bearing cage including a bearing separator holding a plurality of ball bearings in a substantially horizontal array arranged about a longitudinal center axis of the sprinkler, the part spherical head located centrally above and in engagement with the plurality of ball bearings, thereby permitting the spray plate to wobble as it rotates.

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First Claim