Patent ID: 8636229

Claim:
An irrigation sprinkler, comprising: a riser; a nozzle mounted at the top of the riser for rotation and configured to emit a stream of water; a gear train reduction mounted in the riser; a turbine coupled to an input shaft of the gear train reduction and rotatable by water flowing through the riser; a drive assembly coupling the nozzle and the gear train reduction and configured to allow a user to select between a non-oscillating mode of operation and an oscillating mode of operation; and a diffuser configured to intermittently interrupt the stream of water to intermittently alter a distance the stream of water travels from the sprinkler more than once during both a clockwise direction and a counter-clockwise direction of rotation of the nozzle; wherein the diffuser mechanism intermittently interrupts the stream more than one time during both the non-oscillating mode of operation and during the oscillating mode of operation.