Omron Corporation

Omron Tateisi Electronics Co.

Hirohito Yamamoto

Kei Asai

Kazuhiro Matsumoto

Isao Kai

Hideharu Nakai

Hisashi Miyaoka

Masaru Obata

Kichiro Miyata

A bush () is fitted into a housing () and an ultrasonic pump () is supported liquid tightly by the bush (). The ultrasonic pump () is constituted by a pump shaft () formed to include a pump bore () passing through it axially and having upper and lower ends which are open, and an ultrasonic vibrator () mounted on the pump shaft () in the vicinity of the midpoint thereof in terms of the axial direction. A liquid vessel.() is mounted in the housing () in a freely attachable and detachable manner, and the lower end portion of the pump shaft () is received inside the liquid vessel (). A cap () is freely detachably attached to the upper end portion of the housing () so as to cover the upper end portion of the pump shaft (). The top side of the cap () is provided with a spray port (), and a step portion () is formed for supporting a mesh plate () at the periphery thereof at a position below the spray port (). A compression spring () is provided between a portion of the top side of the cap and the mesh plate. The mesh plate () is formed to have a multiplicity of minute holes () and is held in pressured contact with the upper end face of the pump shaft () by the compression spring ().

Ultrasonic atomizer, ultrasonic inhaler and method of controlling same

A bush ( ) is fitted into a housing ( ) and an ultrasonic pump ( ) is supported liquid tightly by the bush ( ). The ultrasonic pump ( ) is constituted by a pump shaft ( ) formed to include a pump bore ( ) passing through it axially and having upper and lower ends which are open, and an ultrasonic vibrator ( ) mounted on the pump shaft ( ) in the vicinity of the midpoint thereof in terms of the axial direction. A liquid vessel ( ) is mounted in the housing ( ) in a freely attachable and detachable manner, and the lower end portion of the pump shaft ( ) is received inside the liquid vessel ( ). A cap ( ) is freely detachably attached to the upper end portion of the housing ( ) so as to cover the upper end portion of the pump shaft ( ). The top side of the cap ( ) is provided with a spray port ( ), and a step portion ( ) is formed for supporting a mesh plate ( ) at the periphery thereof at a position below the spray port ( ). A compression spring ( ) is provided between a portion of the top side of the cap and the mesh plate. The mesh plate ( ) is formed to have a multiplicity of minute holes ( ) and is held in pressured contact with the upper end face of the pump shaft ( ) by the compression spring ( ).

Massage chair

This ultrasonic atomizer includes an oscillating member, a means for vibrating the oscillating member at a supersonic frequency, a bottle for liquid storage, with an opening, fitted generally above the oscillating member with regard to the preferred orientation of the atomizer during use, and a nozzle fitted into the opening of the bottle, this nozzle having a tip portion protruding outside the bottle in the generally downwards direction and approached closely to the oscillating member. The nozzle is formed with a fine groove for leading liquid in the bottle downwards to the tip portion of the nozzle by capillary action and by gravitational action, and with an aperture for introducing air from the outside into the bottle. Thereby liquid in the bottle may be properly supplied to the oscillating member to be atomized in a controlled fashion, and interruption of liquid supply and also dribbling of liquid are positively prevented. Constructions for the nozzle and for the bottle are also disclosed.

Ultrasonic atomizer and storage bottle and nozzle therefor

This oscillating construction for an ultrasonic atomizing inhaler includes an oscillation element which is excited to vibrate ultrasonically, and this oscillation element has two adjoining regions which have substantially different vibrational characteristics. Liquid supply is made to one of the regions, and the oscillation for atomization takes place in the other region, according to the particular frequency of ultrasonic excitation of the oscillation element which is appropriately chosen. The region to which liquid is supplied has a resonance frequency which is different from that of the region for atomization, and substantially no atomization takes place in the liquid supply region. Therefore, even when the load imposed on the oscillation element by liquid thereon changes, as for example if the amount of the liquid thereon has changed, oscillation of a constant frequency continues in the atomization region, and thereby proper atomization is maintained. Thus, there is provided an ultrasonic atomizer which effects proper supply of liquid to be atomized, which does not cause oversupply or undersupply of liquid to be atomized, and which further can handle fluids of various different viscosities, including even quite viscous liquid, and is not wasteful of atomization liquid. Thus, this ultrasonic atomizer is not uneconomical during use. Further, it is not prone to dribbling of atomization liquid, and thus is not liable to cause a mess.

Oscillating construction for an ultrasonic atomizer inhaler

A nebulization control system for an ultrasonic nebulizer comprising a variable pulse oscillating circuit, an ultrasonic vibrating circuit and an ultrasonic vibrator is described. The ultrasonic vibrator is caused to vibrate alternatingly between a high level which is sufficient to nebulize a fluid and a low level which is insufficient to nebulize the same. The ratio of duration of the high level to the low level and/or the amplitude of vibration at the high level is variable. This arrangement permits a precise control of nebulization quantity and assists in the production of a fine, uniform mist of fluid.

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Kyoto, Japan

Hirohito Yamamoto