A vortex ring generation device includes a casing and an extrusion mechanism. The casing has a gas passage and a discharge port. The extrusion mechanism extrudes gas in the gas passage such that the gas in a vortex ring shape is discharged from the discharge port. V (m.sup.3) represents an extrusion volume, D (m) represents a diameter of the discharge port, L (m) represents a length of a cylinder having the diameter D and the volume V, and U (m/s) represents a discharge flow rate 0.045≤D≤0.135, 0.15≤L≤0.35, and 3≤U≤5.

A vortex ring generation device includes a casing and an extrusion mechanism. The casing has a gas passage and a discharge port. The extrusion mechanism extrudes gas in the gas passage such that the gas in a vortex ring shape is discharged from the discharge port. V (m.sup.3) represents an extrusion volume, D (m) represents a diameter of the discharge port, L (m) represents a length of a cylinder having the diameter D and the volume V, and U (m/s) represents a discharge flow rate 0.045≤D≤0.135, 0.15≤L≤0.35, and 3≤U≤5.

Methods and apparatus for vacuum forming and subsequently applying topical coatings fiber-based food containers. The slurry includes one or more of an embedded moisture barrier, vapor barrier, and oil barrier, and the topical coating comprises one or more of a vapor barrier, a moisture barrier, an oil barrier, and an oxygen barrier. For food containers having deep sidewalls, a spray coating system includes a first nozzle for applying a full cone spray pattern to the bottom surface of the container, and a second nozzle for applying a hollow cone spray pattern to the inside surfaces of the side walls.

Methods and apparatus for vacuum forming and subsequently applying topical coatings fiber-based food containers. The slurry includes one or more of an embedded moisture barrier, vapor barrier, and oil barrier, and the topical coating comprises one or more of a vapor barrier, a moisture barrier, an oil barrier, and an oxygen barrier. For food containers having deep sidewalls, a spray coating system includes a first nozzle for applying a full cone spray pattern to the bottom surface of the container, and a second nozzle for applying a hollow cone spray pattern to the inside surfaces of the side walls.

A water spraying assembly is provided which includes a central conduit, an impeller, and a mist nozzle having a tapered chamber that decreases in cross-sectional area as it narrows into a nozzle outlet sufficiently small so as to reduce the flowing water's pressure as it is transported down the chamber. The impeller includes blades which form channels for receiving water from the central conduit. Further, these channels produce a vortex, rotating the passing water stream. The impeller is directly adjacent to, upstream and in fluid connection with the entrance of the tapered chamber which tapers inwardly until it reaches its smallest measurement at the nozzle outlet. Consequently, the swirling water and the tapered chamber create a low-pressure environment, thereby increasing the water's velocity and force. Due to the high velocity and the outlet's small opening, water is ejected from the outlet as small droplets in a fine mist spray pattern.

An in-situ applicator for applying a composition in a pipe comprises a flow diverter configured to receive a composition and eject the composition from at least one outlet. The applicator also comprises a hollow conical body having a narrow end, a broad end, and an interior surface configured to receive the composition ejected from the flow diverter. The conical body also has a plurality of holes forming a band that wraps circumferentially around the conical body which defines a flow region on the interior surface between the band and the narrow end. The band includes first holes adjacent to the flow region where each of the first holes has a first average diameter and second holes disposed between the first holes and the broad end, each of the second holes having an average diameter greater than the first diameter.

An in-situ applicator for applying a composition in a pipe comprises a flow diverter configured to receive a composition and eject the composition from at least one outlet. The applicator also comprises a hollow conical body having a narrow end, a broad end, and an interior surface configured to receive the composition ejected from the flow diverter. The conical body also has a plurality of holes forming a band that wraps circumferentially around the conical body which defines a flow region on the interior surface between the band and the narrow end. The band includes first holes adjacent to the flow region where each of the first holes has a first average diameter and second holes disposed between the first holes and the broad end, each of the second holes having an average diameter greater than the first diameter.

An aerosol hydrogen peroxide mixture agent with trigger sprayer that can be easily held in one hand. The hydrogen peroxide agent is in a bag inside a can and under pressure from air or nitrogen or mixture thereof, and can only be initially opened and released by pulling the tab of the trigger sprayer. The trigger assembly cannot be sprayed until the tab is pulled. The can is cylindrical canister housing and has a dip tube that goes to the bag of the can to the hydrogen peroxide mixture agent. There is propellant composed of air or nitrogen or mixture thereof in the can that pushes on the bag holding the hydrogen peroxide mixture agent up through the dip tube to the valve operative and then to the actuator stem up through the trigger sprayer.

An aerosol hydrogen peroxide mixture agent with trigger sprayer that can be easily held in one hand. The hydrogen peroxide agent is in a bag inside a can and under pressure from air or nitrogen or mixture thereof, and can only be initially opened and released by pulling the tab of the trigger sprayer. The trigger assembly cannot be sprayed until the tab is pulled. The can is cylindrical canister housing and has a dip tube that goes to the bag of the can to the hydrogen peroxide mixture agent. There is propellant composed of air or nitrogen or mixture thereof in the can that pushes on the bag holding the hydrogen peroxide mixture agent up through the dip tube to the valve operative and then to the actuator stem up through the trigger sprayer.

The present invention a device for dispensing a composition, comprising: i) a dispensing head (1) intended to be fitted on a container that contains said composition, comprising: a body (3) that is open at its two opposite axial ends, an engaging part (10) that is open at its two opposite axial ends, at least partially defining at least one dispensing orifice (12), the cross section of the dispensing orifice being between 0.02 mm.sup.2 and 0.5 mm.sup.2, ii) the anhydrous composition comprising, in particular in a physiologically acceptable medium: a) at least one oily phase comprising at least one volatile hydrocarbon-based oil, and b) at least one clay, and c) at least one deodorant active agent, and d) at least one propellant. The present invention also relates to a method for the cosmetic treatment of body odor and optionally of human perspiration, which consists in applying to the surface of a keratin material a composition as defined above by means of the dispensing device defined above.