A fluid ejection device is a fluid ejection device adapted to eject a fluent material, including a fluent material chamber supplied with the fluent material, a moving object, which can reciprocate in the fluent material chamber, a nozzle part having a discharge port communicating with the fluent material chamber, and an inner wall on a periphery of the discharge port on which a tip part of the moving object can contact from the fluent material chamber side, and an actuator having contact with a back end part of the moving object to reciprocate the moving object to thereby discharge the fluent material from the discharge port. The actuator has a plurality of solid-state displacement elements connected in series to each other, and one end of one of the plurality of solid-state displacement elements has contact with the back end part of the moving object.

The invention relates to an ultrasonic mist inhaler, comprising: a liquid reservoir structure comprising a liquid chamber adapted to receive liquid to be atomized, a sonication chamber in fluid communication with the liquid chamber,
wherein the sonication chamber comprises means of ultrasonic vibrations receiving a predetermined signal for vibrating the means of ultrasonic vibrations in a range comprised between 2.8 MHz and 3.2 MHz as depicted in FIG. 3.

A variable-frequency surface acoustic wave electronic cigarette includes an atomizer. An atomization cavity is disposed in the atomizer, and a variable-frequency surface acoustic wave atomization chip is disposed at a lower portion of the atomization cavity. An inverted trapezoidal interdigital transducer is disposed on the variable-frequency surface acoustic wave atomization chip. An e-liquid storage cavity is disposed in the atomization cavity. A porous ceramic sheet is disposed between the e-liquid storage cavity and the atomization chip. The new variable-frequency surface acoustic wave electronic cigarette can realize any adjustment of the working frequency within a set range, thereby realizing the autonomous regulation and control of a smoke particle size after atomization of the e-liquid.

Embodiments of the invention relate generally to disinfection and, more particularly, to methods, devices, and systems for disinfection of a space. In one embodiment, the invention provides a disinfecting system comprising: a disinfecting composition; and a device for producing a fog of the disinfecting composition, the fog comprising liquid droplets having diameters between about 0.5 micron and about 20 microns. In some embodiments, the invention includes a dehumidifying device for removing the fog of the disinfecting composition from the space.

A disinfecting device for purifying air to reduce the presence of dust and/or pathogens. The device includes a main housing, a battery module configured for installation within a first receptacle in the main housing and a reservoir module configured for installation within a second receptacle in the main housing. The reservoir is configured to hold a disinfecting fluid. The housing also includes an ultrasonic wave emitter electrical power communication with the battery, the ultrasonic wave emitter providing ultrasonic waves to the disinfecting fluid thereby creating a pressurized fluid, a membrane in contact with the pressurized fluid. The membrane generates reduced-size particles of the pressurized fluid which are emitted from a nozzle mounted on the housing.

A sprayer that senses the presence or character of a surface to be sprayed includes one or more sensors configured to detect a presence or character of a surface to be sprayed; and a dispenser assembly including one or more components configured to modify at least one spray characteristic of a formulation based on an input from at least one of the one or more sensors indicative of the presence or character of the surface to be sprayed.

An atomizer for applying a coating includes a nozzle plate, an actuator, and an acoustic focusing device. The nozzle plate defines at least one aperture. The actuator is configured to oscillate to form pressure waves within a fluid to eject the fluid from the nozzle plate. The acoustic focusing device focuses the pressure waves toward the apertures.

A fog generator assembly includes a water vapor generator, a fragrance dispenser, and a mixing element fluidly coupled to the water generator and the fragrance dispenser. The mixing element is configured to mix a fog of water vapor from the water vapor generator with a fragrance from the fragrance dispenser to produce an aromatic fog.

The present disclosure generally relates to the field of aerosol generation devices, and more particularly to electronic cigarettes configured to generation of aerosols from aqueous formulations of nicotine or cannabis products. The present disclosure further provides aqueous cannabinoid compositions for use in the aerosol generation devices.

An apparatus to provide scent or other substances (e.g., active agent) includes a thin profile delivery apparatus that includes an actuator (e.g., nebulizer) and drive circuit to generate a spray, aerosol or vapor. The apparatus may have a slot to removably a media cartridge that carries the scent or other substances. The apparatus may include two contacts (e.g., buttons), opposed to one another across a dimension of the apparatus. Activation may require both engagement of both contacts, for instance concurrently, or even successive engagement of both contacts, in quick succession. Activation may further require a correct orientation of the apparatus. The apparatus may have a form factor similar to a conventional credit or debit card, and may be pliable or pliably resilient. The delivery apparatus can be used in entertainment (e.g., food or cooking programming), and in healthcare (e.g., control of metabolism).