An electronic device for producing an aerosol for inhalation by a person includes a mouthpiece, a liquid container, and a mesh assembly having a mesh material and a piezoelectric material. The mesh material is in contact with a liquid of the container. The mesh material is configured to vibrate when the piezoelectric material is actuated, whereby the aerosol is produced. The aerosol may be inhaled through the mouthpiece. The device also includes circuitry and a power supply for actuating the mesh assembly. The mouthpiece, the container, and the mesh assembly are located in-line along a longitudinal axis of the device between opposite longitudinal ends of the device, with the mesh assembly extending between and separating the mouthpiece and the container. The mesh material has a rigidity that is sufficient to prevent oscillations of varying amplitudes during actuation of the piezoelectric material of the mesh assembly for consistently producing the aerosol.

A three-dimensional object printing apparatus includes a liquid discharge head having a nozzle surface, a moving mechanism that changes a position and a pose of the liquid discharge head relative to a three-dimensional workpiece, and a controller. The workpiece has a first surface and a second surface that forms a corner bent or curved in a concave shape between the first surface and the second surface. When an axis along a scanning direction of the liquid discharge head with respect to the workpiece in a first printing operation of performing printing on the first surface is a first scanning axis and a normal vector of the nozzle surface in the first printing operation is a first discharge vector, the controller controls the driving of the moving mechanism such that the first discharge vector has a component in a direction toward the second surface along the first scanning axis.

An electronic device includes a mouthpiece, a bladder, and a mesh assembly having a mesh material and a piezoelectric material. The mesh material is in contact with a liquid of the bladder. The mouthpiece, the bladder, and the mesh assembly are located in-line along a longitudinal axis of the device between opposite longitudinal ends of the device, with the mesh assembly extending between and separating the mouthpiece and the bladder. A liquid-filled cartridge also is disclosed for use with an electronic device for delivery of a substance into a body through respiration includes a liquid container; and a liquid contained within the container for aerosolizing and inhaling by a person using the electronic device. The liquid includes a plurality of nanoparticles in a nanoemulsion, the nanoparticles including the encapsulation of the substance to be delivered into the body through respiration. The nanoemulsion preferably is produced using a microfluidizing machine.

A method of delivering safe, suitable, and repeatable dosages to a subject for topical, oral, nasal, or pulmonary use and a device for droplet ejection includes a fluid delivery system capable of delivering a defined volume of the fluid in the form of droplets having properties that afford adequate and repeatable high percentage deposition upon application. The method and device include a housing, a reservoir disposed within the housing for receiving a volume of fluid, an ejector mechanism configured to eject a stream of droplets having an average ejected droplet diameter greater than 15 microns, the stream of droplets having low entrained airflow such that the stream of droplets deposit on the eye of the subject during use.

A liquid reservoir (100) of a nebulizer has a funnel portion (102) with ribs (103, 104) extending downwardly along a side wall towards a reservoir outlet (105). The ribs (103, 104) prevent the formation of air bubbles between the aperture plate and medication as any trapped air will be expelled along the geometry formed by the rib or groove and reservoir wall. Bubble formation is therefore prevented with only modification of the wall internal surface configuration of the reservoir.

An apparatus having a transducer configured to be modulated and transduce a liquid and form a simulated flame. The transducer may be piezoelectric transducer driven by a modulated drive signal that has varying power levels such that a liquid transduces to a mist, and also such that the transducer controls and shapes the mist to create a vapor plume. The plume is illuminated by a colored light source generating the simulated flame. A wick or a nozzle may present the liquid to the transducer. The wick may have different shapes i.e. helical, tiered, and include intertwined or braided fiber optic cables of varying colors, or LED lights/tubes. The transducer may have multiple openings, perforations, notches, and/or impressions to shape the plume and creating the effect of a dancing flame.

The invention provides a head for a fluid excitation device in which a transducer comprising a vibration generation portion and a fluid excitation portion is secured to a flexible substrate using an adhesive layer located between the vibration generation portion and the flexible substrate. An external force-applying structure is not needed to secure the vibration generation portion to the fluid excitation portion, removing a cause of significant vibration damping. Rather than damping the vibrations generated by the transducer, the flexible substrate instead itself moves in co-operation with the transducer, reducing damping effects. The design and manufacture of this arrangement is relatively simple and no complex tuning is required to ensure efficient operation over the entire operational life of the head. The head can be used in a fluid excitation device such as an atomiser or ultrasonic bath.

In a piezoelectric ejector assembly, a piezoelectric actuator is attached to an ejector mechanism, while a drive signal generator and a controller are coupled to the actuator. The drive signal generator is configured to generate a drive signal for driving the actuator to oscillate the ejector assembly. The controller is configured to control the drive signal generator to drive the actuator at a resonant frequency of the ejector assembly, and an auto-tuning circuit is provided to define the optimum drive signal frequency.

An ultrasonic control apparatus and method for a liquid jet are provided. An ultrasonic generator is equipped with two sets of ultrasonic transducers arranged perpendicularly to each other, and the two sets of ultrasonic transducers emit ultrasonic waves of a specific frequency. Two sets of reflectors are arranged correspondingly in front of the ultrasonic waves emitted by the two sets of ultrasonic transducers, where a distance exists between the ultrasonic transducers and the corresponding reflectors, two stable standing wave sound fields are formed by adjusting the distance. A liquid jet device is equipped with a nozzle that emits a continuous jet, where the nozzle is located above an intersection of pressure nodes of the two standing wave sound fields, and the two standing wave sound fields act on the liquid jet to adjust jet morphology under the action of acoustic radiation pressures.

A decontamination system not requiring large-scale equipment and capable of efficiently using a decontamination liquid. Long pipes can be installed for each of multiple rooms to be decontaminated, a decontamination liquid is not present in supply pipes as a residual dead liquid, and a proper amount of decontamination liquid can essentially be supplied for each room to cause no failure of an ultrasonic vibrator. The system employs a decontamination mist and includes a compressed air generating equipment and a decontamination liquid supplying equipment, and each room is provided with primary and secondary mist generating equipment. The conveyance distance of a primary mist supply pipe connecting the primary and secondary mist generating equipment is longer than that of a decontamination liquid supply pipe connecting the decontamination liquid supplying equipment and the primary mist generating equipment.