This invention relates to a valve button structure of the type used with an aerosol container and including a terminal orifice insert mounted within the button in aligned, predetermined relation with a feed post. A plurality of feed passages and at least one central feed channel are disposed in predetermined relation to one another and relative to the feed post so as to concurrently direct fluid product issuing from the aerosol container into a fluid swirl chamber or fluid orienting chamber, through said terminal orifice insert so that the fluid product will exit from the valve body at a relatively high rate and in a predetermined pattern dependent upon the particular product being dispensed from the aerosol container.

An aerosol valve tip and insert assembly adapted for use on aerosol dispensers. The tip includes a body having interconnecting channels and an integral actuator post defining an annular recess. An insert having arcuate shaped bosses defining radial feed channels and a swirl chamber on the rear face is received in the annular recess and abuts the post. The tip and insert assembly provides a substantially uniform aerosol spray pattern and droplet size for carbon dioxide, fluorocarbon, and other pressurized spray formulations over a broad range of pressures.

A valve actuator, usable in pump-type and aerosol fluid product dispensers, includes a one-piece part mounted on the plunger or valve stem of the dispenser for axial reciprocating movement therewith and for rotation relative thereto. The upper end of the plunger or stem has a cylindrical segment covering a cavity surrounding the discharge orifice and a tangentially extending groove so as to form, in a first relative position of the actuator, a swirl chamber and a fluid passage which is open beyond the periphery of the segment so as to establish communication between the outlet of the plunger and the orifice via the fluid passage to thereby effect a fluid spray from the swirl chamber upon plunger reciprocation. In a second relative position of the actuator, the segment uncovers the groove and cavity so as to establish direct communication between the plunger outlet and the discharge orifice so that the fluid is discharged as a solid fluid through the orifice upon plunger reciprocation.

A spray nozzle comprises, in a housing, a hollow nozzle interior comprising a discharge chamber containing a nozzle outlet and, as a first stage of turbulence, an annular chamber coaxially about the central axis of the nozzle outlet, and feed channels which lead from the annular chamber at least approximately tangentially to the periphery of the discharge chamber, and supply duct means for feeding liquid to the first stage of turbulence comprising feed channels feeding liquid tangentially. The hollow nozzle interior further comprises at least one additional stage of turbulence, and between two successive stages of turbulence, at least one obstacle breaking up the liquid flowing from the upstream to the downstream stage of turbulence and deflecting the liquid out of the flow plane through the annular chamber towards the side of the nozzle outlet by an angle of maximally 90.degree..

An actuator for a container that dispenses liquids containing a suspension of particulate material that keeps itself from clogging comprises a mechanical break-up chamber to emit a fine spray and includes a continuous emission from an orifice which keeps the chamber free from accumulation of solid particles.