A crossover prevention valve for use in a multi-component fluid mixing and dispensing system includes a valve body defining at least two fluid passageways having respective one-way check valves at their outlet ends. A forward end of the valve body cooperates with an interior surface of a dispensing nozzle to define a mixing chamber for chemically reactive fluids prior to discharging the mixed fluids out of the dispensing nozzle. The crossover prevention valve does not permit reverse flow, thereby preventing clogs due to undesired intrusion of one reactant into the flow path of another reactant. Solidified reactants left in the mixing chamber are easily removed from the valve body, permitting the valve body to be reused even after sitting for extended periods.

A portable toilet odor blocking device includes a container, a foaming liquid, a liquefied gas and a spraying module. The container is formed with an accommodation space. The foaming liquid is accommodated in the accommodation space. The liquefied gas is accommodated in the accommodation space. The spraying module is mounted to the container and configured to use air pressure of the liquefied gas to spray the foaming liquid to a water surface of a toilet, bowl and to selectively spray the foaming liquid to a wall surface of the toilet bowl, such that foam formed by the foaming liquid is configured to completely cover the water surface of the toilet bowl and selectively cover the wall surface of the toilet bowl. Wherein, the foam formed by the foaming liquid is configured to block an odor from excrement above or under the water surface of the toilet bowl.

The present disclosure describes devices, systems, and methods for the production and/or delivery of a foamable and/or flowable material for consumption, such as by direct application to a consumer, such as directly to the mouth of the consumer. A device and/or system for converting a material from a first, unfoamed state to a second, foamed state is provided, and a device and/or system for converting a material from a first, non or semi-flowable state to a second, flowable state is provided.

A method for dispensing a sanitizing composition comprising a carrier fluid involves passing a carrier fluid under pressure through a nozzle and a chamber mounted to the nozzle. The chamber receives the carrier fluid from the nozzle and has an opening on an opposite side from the nozzle through which the carrier fluid exits the chamber. Ozone is provided to an interior of the chamber in the presence of the carrier fluid, and is irradiated with ultraviolet radiation as the carrier fluid and the ozone pass through an interior of the chamber.

The invention relates to an injection device (10) configured to atomize a liquid into droplets using a gas, comprising a hollow tubular body (12) of longitudinal direction (X). An internal wall (13) defines a first zone referred to as a contact zone (Z1) and a second zone (Z2). The body has: at least a first and a second inlet opening (14; 16) opening into the said first zone (Z1), so as to respectively inject a liquid and an atomizing gas, at least one outlet orifice (18) situated downstream of the first and second zones, for removing the atomized liquid from the body.

The internal wall (13) of the body is provided, between the zones (Z1) (Z2), with at least one chicane (20.sub.i) configured so that, in each plane perpendicular to the longitudinal direction of the body containing the said chicane, this chicane extends over just part of the periphery of the internal wall (13).

The invention relates to an injection device (10) configured to atomize a liquid into droplets using a gas, comprising a hollow tubular body (12) of longitudinal direction (X). An internal wall (13) defines a first zone referred to as a contact zone (Z1) and a second zone (Z2). The device (10) is notably provided with an atomizing element (18) mounted on an opening (19) of the body situated facing an opening (17) for injecting a liquid, comprising a tubular pipe (20) for conveying gas into the first zone (Z1), and a target (21) situated at the centre of the pipe.

The body has an internal cross-section that varies continuously or is constant over its entire length (for example the shape of a simple cylinder) and of which the internal wall is provided, between the zones (Z1) (Z2), with at least one chicane (26.sub.i, 26.sub.i) projecting from the internal wall towards the inside of the body.

An applicator having a housing and a nozzle is described, the nozzle being convertible from a first geometric shape to a different second geometric shape by an operator snapping the exterior tip off the nozzle, thereby exposing an interior tip.

In an example, an electrostatic spray module includes a base unit formed of a sturdy, rigid, liquid impermeable, electrically insulative material and a cover formed of a sturdy, rigid, liquid impermeable, electrically insulative material and sized for covering the base unit. The base unit and the cover configured for mating engagement together so as to form a liquid impermeable, electrically insulative, protective enclosure when the module is in a closed state to keep the internal components clean and dry and prevents high voltage shorting and prevents leakage of current by inhibiting a high voltage from establishing a return path to ground. The spray module includes a quick access latch and gasket systemwith no tools required to open for maintenance. The module includes integral place holders for components including air supply manifold and variable voltage supply to provide a selectable high voltage level to accommodate various spraying application.

A method of atomizing a liquid comprising providing the liquid to a liquid duct in a dispensing body, providing a gas to a gas duct in the dispensing body, and introducing the liquid into a head via a plurality of liquid duct channels. The method further includes introducing the gas into a pressure chamber of a pressure cap, the pressure cap positioned proximate the dispensing body such that the head is positioned between the pressure cap and the dispensing body. The gas is expelled through a plurality of pressure chamber exit orifices, the pressure chamber exit orifices positioned proximate a plurality of liquid supply channel exit openings via an alignment spacer defined on the head. The method includes expelling the liquid from the liquid supply channel exit openings and through the pressure chamber exit orifices, such that the liquid and the gas interact and form atomized droplets of the liquid.

A device for dispensing a hydrofluoroolefin vapocoolant composition as an aerosol is disclosed. The device comprises an aerosol-dispensing container comprising an internal chamber, a valve, a dispensing hole, and an actuator. The device also comprises a hydrofluoroolefin vapocoolant composition comprising HCFO-1233zd at 70% to 100% (weight/weight) and, optionally, HFO-1234ze in at 0% to 30% (weight/weight). The hydrofluoroolefin vapocoolant composition is stored within the internal chamber. The aerosol-dispensing container is configured so that depressing the actuator reversibly opens the valve to allow the hydrofluoroolefin vapocoolant composition to flow from the internal chamber, past the valve, and through the dispensing hole, thereby dispensing the hydrofluoroolefin vapocoolant composition from the aerosol-dispensing container. A method of treating pain and/or swelling of a tissue of a patient by use of the device also is disclosed. The method comprises a step of dispensing the hydrofluoroolefin vapocoolant composition from the device onto the tissue of the patient.