Patent ID: 6039269
Filing Date: 2000-03-21
Classification: A62C,B05B,Y10S

Abstract:
A nozzle for producing a substantially hollow conical water pattern, said nozzle having a longitudinal axis and an outlet, a conically inclined surface surrounding said outlet and extending outwardly therefrom, a convexly curved coanda effect surface surrounding said conically inclined surface in outwardly-spaced relationship thereto a deflector positioned adjacent said outlet and forming an annular slot therewith through which water is deflected outwardly of said axis along said conically inclined surface as a sheet-like layer in a first hollow conical pattern having a first included angle, an annular cavity between said coanda effect surface and said conically inclined surface, said coanda effect surface being positioned for flow of water in said first hollow conical pattern past said cavity into tangential engagement with said coanda effect surface, said cavity providing a vacuum as water in said first hollow conical pattern flows therepast to draw the water in said first hollow conical pattern against said coanda effect surface, and said coanda effect surface providing outward expansion of all of the water in said first hollow conical pattern into an outwardly expanded sheet-like thin layer in a second hollow conical pattern having a second included angle that is greater than said first included angle.