A dispenser capable of dispensing a fluid via a vertically-oriented piezo device comprises a reservoir in the form of a replaceable cartridge containing a fluid to be dispensed, a planar piezo element having front and rear surfaces and which in use is oriented with its plane vertical and which is drivable to vibrate and thereby dispense fluid from the front surface, and a pump to draw a predetermined amount, or dose, of fluid from the reservoir and to drive the dose of fluid at a predetermined above-atmospheric pressure to the rear surface of the piezo element for dispensing.

According to an embodiment of the invention, a coating head of a mist coating film formation apparatus including a main body is provided. The main body includes a top plate in which a supply port capable of supplying one of a cleaning liquid or a mist of a source material solution is provided, a bottom plate provided below the top plate in a vertical direction, and a sidewall provided between the top plate and the bottom plate; and the sidewall includes an upper end and a lower end connected respectively to the top plate and the bottom plate and forms an interior space with the top plate and the bottom plate. The sidewall includes a slit spraying the mist externally from the interior space, and a recovery port capable of recovering the supplied cleaning liquid or a mist coalescing in the interior space. The bottom plate includes a slope having a height becoming lower from an inner perimeter of the sidewall toward the recovery port.

According to an embodiment of the invention, a coating head of a mist coating film formation apparatus including a main body is provided. The main body includes a top plate in which a supply port capable of supplying one of a cleaning liquid or a mist of a source material solution is provided, a bottom plate provided below the top plate in a vertical direction, and a sidewall provided between the top plate and the bottom plate; and the sidewall includes an upper end and a lower end connected respectively to the top plate and the bottom plate and forms an interior space with the top plate and the bottom plate. The sidewall includes a slit spraying the mist externally from the interior space, and a recovery port capable of recovering the supplied cleaning liquid or a mist coalescing in the interior space. The bottom plate includes a slope having a height becoming lower from an inner perimeter of the sidewall toward the recovery port.

A nozzle include a first portion, a second portion joined to the first portion, and a third portion joined to the second portion. The first portion includes a first inner wall surface and a first flow channel including a first inlet and a first outlet. The second portion includes a second inner wall surface and a second flow channel including a second inlet having an inner diameter less than an inner diameter of the first outlet and a second outlet. The third portion includes a third inner wall surface and a third flow channel including a third inlet having an inner diameter greater than the inner diameter of the second outlet and a third outlet. The third flow channel includes a diameter-decreasing section having an inner diameter that gradually decreases and a straight section having an inner diameter less than the inner diameter of the second outlet and constant.

A nozzle include a first portion, a second portion joined to the first portion, and a third portion joined to the second portion. The first portion includes a first inner wall surface and a first flow channel including a first inlet and a first outlet. The second portion includes a second inner wall surface and a second flow channel including a second inlet having an inner diameter less than an inner diameter of the first outlet and a second outlet. The third portion includes a third inner wall surface and a third flow channel including a third inlet having an inner diameter greater than the inner diameter of the second outlet and a third outlet. The third flow channel includes a diameter-decreasing section having an inner diameter that gradually decreases and a straight section having an inner diameter less than the inner diameter of the second outlet and constant.

A diffuser that may receive a refill bottle that supplies fragrance to the diffuser is provided. The diffuser includes a seat to facilitate easy placement and alignment of the refill bottle in the diffuser. The diffuser has an arm that can rotate about a pivot axis. The arm may rotate away from the seat to allow the user to place the refill bottle into the seat of the diffuser. The arm may also rotate towards the seat such that the arm can be placed over the refill bottle. The arm contains a piezo-electric component that can atomize the fragrance supplied by the refill bottle. The arm also includes a plurality of springs to create sufficient contact between the piezo and the refill bottle, to apply a downward force on the refill bottle, and to engage with a lock to secure the arm over the refill bottle.

The invention relates to a refillable device (1) for spraying an active substance, comprising a reservoir (2) containing at least one active substance, said device (1) being equipped with a piezoelectric spraying mechanism (6). The invention also relates to the use of said device for spraying an active substance in a controlled manner from a distance in a desired direction. Said device is attached to the subject to be treated and can be used multi-directionally independently of the movements of the subject.

Methods and apparatus for electrostatic control of expelled material for lens cleaners are disclosed. In certain described examples, an apparatus can expel fluid by atomization from a central area of the surface using an ultrasonic transducer mechanically coupled to the surface. A first electrode can be arranged relative to the central area of the surface. A second electrode can be located in a peripheral area relative to the central area of the surface, in which a voltage can be applied between the first and second electrodes to attract atomized fluid at the peripheral area.

A folding travel humidifier, comprising a humidifier main body and a water storage bag arranged on an upper part of the main body of the humidifier; the main body of the humidifier is provided with a power source, a control circuit board and the utility model An atomizer for generating a water mist during vibration; the atomizer is electrically connected to the control circuit board; the water storage bag includes a wave body disposed around the outer circumference of the humidifier main body, and can be folded and stored toward the bottom, and The inner side of the wave crest body is provided with a vent hole for outputting a water mist; the atomizer is located at an intermediate portion of the bottom of the water storage bag.

A folding travel humidifier, comprising a humidifier main body and a water storage bag arranged on an upper part of the main body of the humidifier; the main body of the humidifier is provided with a power source, a control circuit board and the utility model An atomizer for generating a water mist during vibration; the atomizer is electrically connected to the control circuit board; the water storage bag includes a wave body disposed around the outer circumference of the humidifier main body, and can be folded and stored toward the bottom, and The inner side of the wave crest body is provided with a vent hole for outputting a water mist; the atomizer is located at an intermediate portion of the bottom of the water storage bag.