B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
299/10
B05B 3/00 (2006.01) B05B 3/16 (2006.01)
Patent
CA 1096906
ABSTRACT OF THE DISCLOSURE This invention relates generally to relatively large irrigation water sprinklers of the arm driven type which include a reversing mechanism for part-circle watering. When a relatively large-diameter nozzle is used in sprinklers of this type, the reverse drive arm moves the sprinkler in a reverse direction with a very large accelerating force. The reverse movement can be so rapid that there is a significant risk of injury to anyone standing nearby, as well as a likelihood of increased wear and possible damage to the sprinkler it- self. Of course, movement of the reverse drive arm can be adjusted to allow a smaller portion of the reverse deflector spoon to enter the water stream, thereby re- ducing the reverse accelerating force and obviating the problem. However, when a nozzle of different size is again installed, readjustment is always necessary. Prior art sprinklers do not have means associated with its reversing mechanism for automatically compensating for nozzles of different sizes. The present invention satisfies this need by providing an improved water sprink- ler of the arm driven type which has a reverse drive arm movable into the water stream emerging from a replace- able nozzle, to provide rapid reverse rotation of the sprinkler. The improvement lies in a novel nozzle structure which limits movement of the reverse drive arm by an amount dependent upon the nozzle size, thereby resulting in substantially the same reversing force regardless of nozzle size.
306179
Beamer John D.
Wichman William J.
Gowling Lafleur Henderson Llp
Rain Bird Sprinkler Mfg. Corp.
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