Disclosed herein is a multi-purpose aerosol platform capable of producing and delivery of submicron and nano structured materials for pharmaceutical, biomedical and environmental applications. Depending on the application, active chemical and biological materials may be processed from liquid dispersions into droplets and/or particle formulations. The disclosed system uses moderate gas pressures to atomize liquids into submicron-size droplets that are 10-1000 times smaller in diameter than commercial and research systems. This allows much gentler and rapid droplet-to-particle conversion, applying much smaller physical and chemical stresses on the processed materials than conventional techniques like spray drying, spray coating, spray freeze drying and other technologies. For example, the disclosed system can be used for an ultra-fine nebulization and delivery of viscous therapeutic oils including oils of medical cannabis, for which conventional nebulization systems either fail or became ineffective. Such systems could help patients with acute respiratory distress syndrome (ARDS) developed in hard COVID-19 cases.

A system for biological decontamination uses high velocity low pressure emitters to create a fog of liquid decontamination agent or liquid and gaseous decontamination agents to blanket a volume to be decontaminated. The liquid decontamination agent and atomizing gas are suppled under pressure to the emitters which create various shock fronts in the gas stream as the gas is discharged from the emitters. The liquid decontamination agent is entrained in the gas stream as it is also discharged from the emitter, and the shock fronts atomize the liquid decontamination agent into droplets which form the decontaminating fog.

A spray pump formed to atomize and apply a viscous liquid may micro-discharge the viscous liquid ranging from low to high viscosity in a quantitative manner, may miniaturize a device capable of atomizing liquids by spraying, and may shorten a spraying path to prevent changes in liquid properties and keep spraying quality constant.

A method of texturing a wall or ceiling with non-acoustical joint compound by providing a collapsible bag having an opening at its top and is adapted to contain non-acoustical joint compound for forming a textured coating on the wall or ceiling and providing a spray nozzle having a low pressure input port, a joint compound suction port attached to the opening at the top of the collapsible bag, and an output port for spraying the non-acoustical joint compound. A low pressure stream of air from an air gun attached to the low pressure input port urges a small quantity of the non-acoustical joint compound to be sprayed out of the spray nozzle when the bottom of the collapsible disposable bag is raised above its top to either allow or force the joint compound to flow into the suction port and into the interior of the spray nozzle.

An apparatus and system that efficiently and effectively delivers a sanitizing fluid to ducts in the form of a fog or mist is described. A canister that contains a liquid sanitizing solution is attached to a compressor and includes a straw that has an internal passageway that extends into the liquid and a venturi tube above the level of the liquid that connects with the internal passageway in the straw. The headspace above the liquid in the canister is pressurized, causing fluid to flow upwardly in the straw when a trigger is depressed, drawing fluid upwardly in part by the venturi. As the liquid passes the venturi the pressurized air that is flowing into the venturi causes the fluid to form a fine mist. The mist, under pressure from the compressor, is routed into a flexible delivery tube that has been previously positioned in a duct system. The terminal end of the tube has an atomizing ball attached thereto and the atomizing ball has a series of orifices through which the misted, atomized fluid is delivered. As fogged sanitizing solution flows through the orifices it is deposited on the interior surfaces of the duct. The delivery tube and the attached atomizing ball are withdrawn from the duct as the sanitizing fog is emitted from the ball. The fan in the HVAC system is not activated so there is no deliver of the sanitizer through registers and into the living space. The apparatus and method may be used to apply other fluids to other surfaces.

A valve including a feed mechanism, a mixing element operably connected to the feed mechanism, wherein the feed mechanism delivers at least two fluids to the mixing element, the at least two fluids being mixed in the mixing element, and an air cap disposed proximate an outlet of the mixing element to atomize the mixed fluids exiting the outlet of the mixing element, is provided. Furthermore, an associated method is also provided.

An aerosol device having a bowl with a bottom defining a drain, and a side wall extending from the bottom to a rim. A nozzle is disposed within the bowl. The nozzle defines a chamber and an outlet orifice directed toward the side wall of the bowl. The aerosol device includes a liquid container fluidly coupled to the nozzle via a first conduit having an outlet tip disposed within the chamber of the nozzle and a second conduit connecting a source of pressurized gas to the chamber of the nozzle. The outlet tip is in the form of a tube defining elongated slots communicating from inside the tube to outside the tube, the slots each having a width defined between two parallel tube surfaces. The aerosol device generates submicron liquid droplets, and is suitable for disinfecting porous articles in an enclosed volume.

A spray gun with a gun body having a handle region and having a head which is equipped with a cartridge which has an angled, tubular region as an inlet for a material-conducting channel which runs through the cartridge and ends in an outlet region which is arranged at the front end of the head of the spray gun, wherein the inlet region of the cartridge is connected or is connectable to a storage container for the material to be sprayed, and wherein the cartridge preferably guides at least one material-conducting component of the spray gun. The cartridge is held fixedly, but releasably, on the head of the spray gun by means of a screw collar ring, wherein the screw collar ring is preferably supported on the cartridge and/or on or in the head of the spray gun by at least one mechanism.

A system for integrated pest management in an environment includes devices positioned within the environment. The devices each include a communications facility that enables transmitting signals to and receiving signals from a network device. The system further includes a network to provide communication between the network device to the devices. The network device receives communication and control functions from a remote computer for distribution to the devices. The system further includes a sensor positioned within the environment to transmit sensor data to the remote computer. The sensor is configured to detect and transmit a parameter for the environment to the remote computer. The system further includes a controller to control the emission of a fluid from a source of the fluid in fluid communication with the devices. The controller is configured to set or adjust an operation parameter of the devices in response to the sensor data.

An insert of a cartridge for use with a liquid diffusing device is provided. The insert includes a body, an inlet provided in the body to receive diffused liquid generated within the cartridge during operation of the liquid diffusing device, an outlet zone defined at least in part by the body through which to discharge the diffused liquid toward an external environment, and a tortuous passage extending between the inlet and the outlet zone to aid in further reducing an average particle size of the diffused liquid as the diffused liquid moves through the tortuous passage. Removable cartridges for use with a diffusion device are also provided which include such an insert.