Patent ID: 8113443

Claim:
A sprinkler for discharging liquid onto an area with a predetermined geometrically shaped perimeter, the sprinkler comprising: a housing fitted with a flow chamber, the flow chamber accommodating a hydraulic motor for rotating a sprinkler head mounted on the housing, and including an outlet end, the housing including: a first nozzle, and a second nozzle being in flow communication with the outlet end of the flow chamber; a dynamic liquid deflector associated with the second nozzle, and biased by an array of biasing elements, each of the biasing elements adapted to dynamically bias the dynamic liquid deflector to a predetermined angle, thereby determine a deflection angle thereof whilst maintaining a substantially constant liquid precipitation over the area; and a cam follower associated with the dynamic liquid deflector; wherein the sprinkler head is spaced from the housing, the biasing elements being independently radially displaceable within the sprinkler head so as to form an imaginary path extending between the biasing elements, and the cam follower travels over the biasing elements to thereby angularly dispose the dynamic liquid deflector.