An atomizing
nebulizer for dispensing a substance or medicament is described. The
nebulizer is formed with a reservoir base releasably secured to an
effluent vent cap that together capture a diffuser and integral dispersing baffle that are further formed with an uptake lumen or channel terminating with a
nozzle jet. The diffuser dispersing baffle is positioned relative to the jet
nozzle to optimize atomization of any of a number of such substances so as to maximize
disbursement of the substance. The reservoir base also incorporates a pressurized fluid-accelerating inlet tube terminated with a metering orifice that cooperates with the
nozzle jet when the inlet tube is received within the diffuser uptake lumen or channel. When so received, the nozzle jet axially registers
proximate and superior to the orifice to establish a vacuum space that is in fluid communication with a capillary interstice established between the walls of the exterior of the inlet tube and the confronting interior surface of the diffuser lumen or channel. When a pressurized fluid is communicated through the lumen, the orifice, and into the vacuum space towards the nozzle jet, a vacuum develops in the vacuum space that, in combination with the
capillary action of the interstice, draws the fluid
proximate to the orifice and disperses it into droplets that are then entrained into a fluid
stream to be further atomized upon
impact with the baffle and then dispensed.