B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
299/10
B05B 3/00 (2006.01) B05B 3/04 (2006.01)
Patent
CA 1093612
ABSTRACT The present invention relates generally to impact- arm sprinklers for full-circle watering. The force of the stream impinging on the deflector spoon of a typical impact-arm sprinkler has one horizontal component of force tending to rotate the impact arm about its axis, and has in addition a second horizontal component and a vertical component, both acting in the same plane as the axis of rotation, and both having a tendency to induce wear in the bearing surfaces between the impact arm and the sprinkler body. Further asymmetry results from nozzle reaction forces on the sprinkler body. Addition- ally, when such sprinklers are mounted with the axis of rotation tilted away from the vertical, the speed of rotation is affected by gravitational forces acting on the sprinkler body. The present invention resides in an impact-arm sprinkler of symmetrical construction. The nozzle reaction forces, impact arm acceleration forces, and gravitational forces are completely balanced by the use of two diametrically opposed nozzles, and two diametrically opposed impact arms mounted for movement as a single unit.
305622
Gowling Lafleur Henderson Llp
Rain Bird Sprinkler Mfg. Corp.
LandOfFree
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