Patent ID: 7419106

Claim:
A nozzle mounted on the discharge chute of a blower, said blower having a frame supporting at least one wheel and a handle for pushing the blower along a surface to be swept of debris, said nozzle comprising: a nozzle body being open at an inlet end and open at an outlet end, said inlet end and said outlet end being in flow communication through a channel formed in said nozzle body, said channel being associated with a first cross-sectional area at said inlet end, and said channel being associated with a second cross-sectional area at said outlet end, wherein said second cross-sectional area is less than said first cross-sectional area, the reduction in cross-sectional area being substantially caused by a change in the shape of the channel in an upper portion of the nozzle body, such that air velocity though an upper region of the channel is greater than the air velocity through a lower region of the channel at the outlet end, thereby producing a variable airflow profile at the surface being swept with higher velocity air above lower velocity air that is conducive to lateral displacement of the debris.