Abstract: A fluidic scanner nozzle comprising an interaction chamber defined between an upstream end and a downstream end with a longitudinal chamber axis. The upstream end having an inlet opening for receiving and delivering pressurized fluid into said interaction chamber along said chamber axis. The downstream end having an outlet orifice for issuing a generally conical outlet spray of liquid droplets from said chamber into ambient environment and an axial gap positioned between said upstream end and said downstream end. The upstream and downstream ends may define inner cavities having a hemisphere shape. The axial gap may define a cylindrical sidewall segment aligned between an upper hemisphere shaped inner cavity and a lower hemisphere shaped inner cavity. The axial gap includes a selected axial length and an inside diameter that may be either a continuous axial gap or a stepped axial gap.

Abstract: Provided is a cup shaped nozzle member and dispensing package assembly for dispensing or spraying a pumped or pressurized fluid drawing from a transportable container to generate a spray of fluid. The cup-shaped nozzle member mounted in said dispensing package and including a plurality of interaction chambers defined within the distal end wall wherein each interaction chamber defines a fluid channel that terminates distally in an exit orifice. At least one distally projecting platform rib member spaced from and proximate to said first discharge orifice along an outer surface of the distal end wall, wherein said distally projecting platform rib member has a selected distally projecting length which is at least as great as the length of the first distally projecting protuberance.

Abstract: A fluidic scanner nozzle comprising an interaction chamber defined between an upstream end and a downstream end with a longitudinal chamber axis. The upstream end having an inlet opening for receiving and delivering pressurized fluid into said interaction chamber along said chamber axis. The downstream end having an outlet orifice for issuing a generally conical outlet spray of liquid droplets from said chamber into ambient environment and an axial gap positioned between said upstream end and said downstream end. The upstream and downstream ends may define inner cavities having a hemisphere shape. The axial gap may define a cylindrical sidewall segment aligned between an upper hemisphere shaped inner cavity and a lower hemisphere shaped inner cavity. The axial gap includes a selected axial length and an inside diameter that may be either a continuous axial gap or a stepped axial gap.