An ultrasonic apparatus for producing particles of a pharmaceutical agent or other material comprises a flow-through ultrasonic horn comprising an inlet, an outlet, and an interior channel that connects the inlet to the outlet for flow of a fluid therethrough. The ultrasonic horn is connectable to a transducer, and a crystallization tube is adjacent to the ultrasonic horn. The crystallization tube comprises an inlet port and outlet port for flow of an antisolvent therethrough, and it further includes a side access port. The outlet of the ultrasonic horn is inserted into the side access port so as to be in fluid communication with the crystallization tube.

An electrodischarge apparatus has a nozzle that includes a discharge chamber that has an inlet for receiving a liquid and an outlet. The apparatus has a first electrode extending into the discharge chamber that is electrically connected to one or more high-voltage capacitors. A second electrode is proximate to the first electrode to define a gap between the first and second electrodes. A switch causes the one or more capacitors to discharge across the gap between the electrodes to create a plasma bubble which expands to form a shockwave that escapes from the nozzle ahead of the plasma bubble.

Methods, systems, and devices are provided for generating a mist. In one embodiment, a fluid delivery device is provided that includes a housing, a fluid vaporizer disposed within the housing and configured to receive fluid and to produce an aerosol mist of liquid particles from the fluid, and a pump configured to accelerate the aerosol mist produced by the fluid vaporizer. Methods are provided for producing a mist, and the methods can include delivering a fluid to a fluid vaporizer that generates a first mist. The fluid vaporizer delivers the mist to a pump that generates a second mist from the first mist.

The present invention relates to a spraying device for spraying an enclosure with a liquid cleanser. The device comprises a metering system communicating with a reservoir and a spray head containing a vibrating mesh spray actuator. The metering system comprises a metering chamber, a weir member and a conduit means. The device is rotatable between a first recharging orientation and a second dispensing orientation. The conduit means comprises an element selected from a check valve and a channel. In particular, the invention relates to a spraying device which is suited for automatically cleaning a toilet bowl. The invention also relates to a cartridge configured to be received by the spraying device. Furthermore the invention relates to a method for spraying an enclosure comprising a rotatable lid with a liquid cleanser.

A misting device with quick release interchangeable cartridge is disclosed for atomizing and discharging a composition as a mist for topical application of the composition to the body or diffusing the composition into the ambient air. The cartridge comprises an atomizer and quickly attaches and detaches from a body using a coupling mechanism which may create a friction fit engagement. The atomizer atomizes the composition. A base maintains the body in an upright position for formulation of the composition in the cavity of the cartridge.

A vibrator unit may be configured to vibrate a target material in a target channel and include a vibration element configured to vibrate in response to an external electrical signal having a predetermined frequency. A resonance frequency of the vibration element may be different from the predetermined frequency of the electrical signal. A vibrator unit may include a vibration transmission member in contact with the first member including the target channel in interior; and a vibration element that is in contact with the vibration transmission member. A mode-1 natural frequency of the vibration transmission member may be different from a resonance frequency of the vibration element.

Nebulization systems to generate a mist of microdroplets of a liquid for the purpose of refreshing the atmosphere. Such nebulization systems are sized for mounting on a sales display for humidifying and refreshing fresh products displayed for sale.

The device for simulating a flame effect includes a mist generator having a housing with an outlet aperture for mist; at least one ultrasonic sprayer of a liquid for generating mist, which is arranged in the housing; a mechanism for pulse supply of a liquid onto the ultrasonic sprayer of the mist generator; a mechanism for outputting of mist via the outlet aperture of the mist generator; at least one light source arranged so as to be able to illuminate a mist current escaping from the outlet aperture of the mist generator for simulation of the flame effect. The technical effect is improved uniformity of a formed mist current, reduced dimensions of the device, simplified construction, improved operational stability, and less contamination of the generator.

Methods, systems, and devices are provided for generating a mist. In one embodiment, a fluid delivery device is provided that includes a housing, a fluid vaporizer disposed within the housing and configured to receive fluid and to produce an aerosol mist of liquid particles from the fluid, and a pump configured to accelerate the aerosol mist produced by the fluid vaporizer. Methods are provided for producing a mist, and the methods can include delivering a fluid to a fluid vaporizer that generates a first mist. The fluid vaporizer delivers the mist to a pump that generates a second mist from the first mist.

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.