Abstract: An improved fluidic oscillator, that operates on a pressurized liquid flowing through the oscillator to generate a liquid jet that flows into the surrounding environment to form of an oscillating spray of liquid droplets, includes: a member into which is fabricated a two-portion, flow channel, with this first portion configured so as to create the flow phenomena in the member that yields the spray's oscillating nature, and wherein its second portion is configured so as to provide a plurality of throats by which the pressurized liquid exhausts into the surrounding environment.

Abstract: An improved fluid spray assembly of the type having a primary housing, which has an exterior surface with front and rear faces and an opening in the front face that exposes a cavity in the housing, and a check valve, which has an exterior surface with upstream and downstream faces, further includes (a) a secondary housing which has an exterior surface with front and rear faces and a fluid flow passage that extends between the secondary housing's faces, and wherein: (b) the primary housing's cavity has a boundary surface which includes a rear portion with a port and a intermediate portion that extends between said cavity opening and said rear portion, (c) the housing exterior surface rear face has an inlet which is connected to the cavity's port by a connecting flow passage, and (d) the primary housing cavity's intermediate boundary surface is configured so as to accommodate the placement through the primary housing opening and the holding in place of both the check valve and the secondary housing.