A microfluidic delivery device and method of dispensing a fluid composition from a microfluidic die are provided. The method includes generating air flow from a fan; directing a first portion of the air flow through a first air outlet in a housing; directing a second portion of the air flow through a second air outlet in the housing; jetting a fluid composition from a microfluidic die through a fluid orifice in the housing; directing the second portion of air flow adjacent to the microfluidic die and out the fluid outlet, wherein the first portion of the air flow directs the fluid composition jetted out of the fluid outlet into the air.

A vibrating piezoelectric atomizer comprising: a piezoelectric tube having a length, a first end defining an opening and a second end, the second end of the piezoelectric transducer tubular body is connected to a horn; the horn is dimensioned to be half wavelength resonator; the horn is folded and located alongside the piezoelectric tube; a metallic disk is connected to the horn near the first end of the piezoelectric tube, whereby by applying an alternating voltage across electrodes of the piezoelectric tube, the piezoelectric tube is excited into a resonant vibration when frequency of excitation equals to half wavelength resonant frequency of the piezoelectric tube's length and vibrates in synchronism and is communicated to the metallic disk to atomize a liquid.

There is provided a nebulizer (2), comprising a first plate (20) configured to hold a transducer (14); a second plate (22) having an aperture therein, the first plate being positioned on a first side of the second plate such that the transducer is adjacent the aperture; and a third plate (24) configured to hold a mesh plate through which liquid can pass to form droplets, the third plate being positioned on a second side of the second plate opposite the first side such that the mesh plate (16) is adjacent the aperture, with the aperture, transducer and mesh plate forming a cavity for holding liquid to be nebulized. A method for manufacturing such a nebulizer is also provided.

The present disclosure is directed to a microfluidic die that includes a plurality of heaters above a substrate, a plurality of chambers and nozzles above the heaters, a plurality of first contacts coupled to the heaters, and a plurality of second contacts coupled to the heaters. The plurality of second contacts are coupled to each other and coupled to ground. The die includes a plurality of contact pads, a first signal line coupled to the plurality of second contacts and to a first one of the plurality of contact pads, and a plurality of second signal lines, each second signal line being coupled to one of the plurality of first contacts, groups of the second signal lines being coupled together to drive a group of the plurality of heaters with a single signal, each group of the second signal lines being coupled to a remaining one of the plurality of contact pads.

A derivatization apparatus and method for coating a sample carrier with a reagent solution. The derivatization apparatus consists of a closed system in which a small quantity of reagent solution is sprayed into a closed container via a spray nozzle. A sample carrier is located in the closed container and is coated as homogeneously as possible with the reagent solution.

The present invention relates to devices and methods for coating surfaces including surfaces of medical devices, in particular the coating of microprojections on microprojection arrays. The present invention also relates to print head devices and their manufacture and to methods of using the print head devices for manufacturing articles such as microprojection arrays as well as to coating the surfaces of microprojection arrays. The present invention also relates to high throughput printing devices that utilize the print heads of the present invention.

A nebulization structure includes a driving element, a structure plate and a nebulization plate. The structure plate is installed on a side of the driving element, and the structure plate is substantially in a circular disc shape and has a plurality of through holes, and at least one rib is formed between adjacent through holes to define a water guide passage. The nebulization plate is clamped between the driving element and the structure plate and made of a polymer material to overcome the problems of having easy metal fatigue and embrittlement of the nebulization plate made of metal, and being corroded by corrosive liquids.

A holding device including a sleeve wall having an outer wall surface and an inner wall surface. The inner wall surface forms a capsule insertion channel extending through an entirety of the sleeve wall. A lip is at an end of the capsule insertion channel and extends toward a center of the capsule insertion channel. The inner wall surface has a recess at a first distance along the inner wall surface from the lip, a base extending outward from the outer wall surface of the sleeve wall; and a flexible retaining element in the recess. The recess being configured to prevent movement of the flexible retaining element along the inner wall. The flexible retaining element having a cross-sectional profile with a first width at a side closer to the lip, and a second width at a side farther from the lip, the first width being larger than the second width.

A car humidifier, which includes a base, a water tank connecting to the base, a waterproof washer for the water tank, an absorbent sponge stick extended between the base and the water tank, an atomization film supported by a bottom support in the base having direct contact between the absorbent sponge stick and the water tank, a waterproof ring for the bottom support, a circuit board electrically connected to the atomization film, an upper case having a spray opening communicate with the atomization film and connected to the base, a positioning seat for rotation mounted to two sides of the base, a cigarette lighter plug connected to the circuit board, a positioning plug coupling to the positioning seat extended on top of the cigarette lighter plug, thereby unnecessary wiring is eliminated. This design is simple, elegant, convenience and easy for use.

The present teachings relate to various embodiments of an hermetically-sealed gas enclosure assembly and system that can be readily transportable and assemblable and provide for maintaining a minimum inert gas volume and maximal access to various devices and apparatuses enclosed therein. Various embodiments of an hermetically-sealed gas enclosure assembly and system of the present teachings can have a gas enclosure assembly constructed in a fashion that minimizes the internal volume of a gas enclosure assembly, and at the same time optimizes the working space to accommodate a variety of footprints of various OLED printing systems. Various embodiments of a gas enclosure assembly so constructed additionally provide ready access to the interior of a gas enclosure assembly from the exterior during processing and readily access to the interior for maintenance, while minimizing downtime.