A mesh nebulizer includes a main body including a recess with a shape that is open upward. The main body includes a vibration portion with a vibration surface, and a liquid supply portion that supplies the liquid onto the vibration surface. The mesh nebulizer also includes a cap that openably and closeably covers the upper portion of the main body, and a replacement member that is separate from the main body and the cap and detachably mounted in the recess of the main body in advance when the nebulizer is to be used. The replacement member includes a film mesh portion, a bottom plate portion, and a side wall portion. When the cap is closed with respect to the main body, the protrusion portion of the cap presses the bottom plate portion of the replacement member toward the bottom surface of the recess, thus positioning the replacement member in the vertical axis direction of the main body.

A method of controlling application of at least one material to a substrate is provided. The method includes configuring at least one array having a plurality of micro-applicators such that a subset of the micro-applicators is individually addressable to apply the at least one material to the substrate. Individually addressing the subset of micro-applicators provides control of a pattern width of a coating applied to a substrate, control of a flow rate of the material applied to the substrate, control of an angle of application of the material to the substrate, control of which and how many materials are applied to the substrate, and combinations thereof.

Disclosed is a needle-type vibrate-to-nebulize apparatus and nebulizer for nebulizing fluids, in particular essential oils. The needle-type vibrate-to-nebulize apparatus mainly comprises the air passage designed in the module, the steel needle and the vibrating unit. Fluid is delivered from the rear end to the front end, then nebulized at the front end by high-frequency vibration. The nebulized mist is blown out through the air passage. The nebulizer mainly comprises the needle-type vibrate-to-nebulize apparatus and the peristaltic pump with rollers. The peristaltic pump with rollers is capable of sucking and supplying essential oil to the steel needle, as well as reversing the oil back when power off to prevent clogging. High-frequency vibrating action of the vibrating unit is generated by the piezoelectric disk and induced to the steel needle. As a result of resonation, essential oil is nebulized at the front end and blown out through the air passage.

Provided is a liquid ejection device that includes a nozzle that ejects a liquid, a liquid conveying tube that conveys the liquid to the nozzle, an outer tube that is internally provided with the nozzle and the liquid conveying tube, and a first vibration applying unit that applies vibration to the nozzle or the liquid conveying tube. The first vibration applying unit is provided between the nozzle and the outer pipe or between the liquid conveying tube and the outer pipe.

An ultrasonic atomization material applicator includes a material applicator with at least one transducer and an array plate with an array of micro-applicators. Each of the micro-applicators has a material inlet, a reservoir, and a micro-applicator plate with a plurality of apertures. At least one supply line is in communication with the micro-applicators and configured to supply at least one material to each of the micro-applicators. The at least one ultrasonic transducer is mechanically coupled to the at least one array of micro-applicators and configured to vibrate the at least one array of micro-applicators such that atomized droplets of the at least one material are ejected from each of the micro-applicators. A movement device configured to cyclically move the at least one array of micro-applicators back and forth about at least one axis of the at least one array of micro-applicators can be included.

Embodiments of the disclosure provide humidifiers and methods for regulating a humidity in an environment using the humidifiers. An exemplary humidifier may include a water tank configured to store a supply of water and a chamber in fluid communication with the water tank. The chamber may be configured to receive the supply of water. The humidifier may also include a mist generator disposed in the chamber and configured to generate a mist of water droplets from the supply of water. The humidifier may also include a tube in fluid communication with the chamber to direct the mist of water droplets to flow from the chamber to an exterior space through an outlet of the humidifier. The humidifier may further include a mist accelerator disposed in proximity to the outlet and configured to generate a forced air flow to accelerate the mist of water droplets flowing out from the outlet.

A material applicator includes an array plate and at least one ultrasonic transducer mechanically coupled to the array plate. The array plate includes a plurality of micro-applicators and each of the micro-applicators has a material inlet, a reservoir, and a micro-applicator plate in mechanical communication with the at least one ultrasonic transducer. Each of the plurality of micro-applicator plates has a plurality of apertures and the at least one ultrasonic transducer is configured to vibrate each of the plurality of micro-applicator plates such that at least one material is ejected through the plurality of apertures as atomized droplets. At least one ultraviolet light source is positioned adjacent to the plurality of micro-applicators and the at least one UV light source is configured to irradiate the atomized droplets ejected through the plurality of apertures.

An apparatus for applying a coating to a substrate includes a base, an applicator, and a quick-connect connector. The base includes a fluid conduit. The applicator includes at least one actuator and an array of nozzle plates. Each nozzle plate defines at least one aperture. The at least one actuator is configured to oscillate the nozzle plates to eject fluid from the apertures. The quick-connect connector couples the fluid conduit to the applicator for fluid communication therebetween.

Disclosed is an essence atomizer having an integrally formed universal connector, comprising: an atomizer universal connector integrally formed into a pipe piece, and an outer shell. Wherein, the pipe port of the first end portion is greater than the pipe port of the second end portion. On the pipe port of the first end portion is disposed inward in sequence a front connection port, the inner threads, and a bottom groove for placing a rubber ring. While on the pipe port of the second end portion is disposed an expansion ring connected to an atomizer plate, an oil prevention pad, and a nozzle cover. The essence atomizer is compact in size and simple in structure Since the essence atomizer is integrally formed into a piece, so it requires less components, and the production process can be reduced.

A device or system is provided that provides olfactory stimuli, and includes a piezoelectric vibration device that is used to produce scents corresponding to actions performed in a VR or AR environment, or other application. In some implementations, a user interacts with one or more game elements within a game program being executed by a game engine, and responsive to the interaction, the game engine may communicate a series of commands that cause a piezoelectric device of the device to generate scents to be experienced by the user.