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US 4,238,425 AGranted
Ultrasonic humidifier
AssigneeNgk Spark Plug Co., Ltd.
InventorsIsao Matsuoka, Hiroshi Matsui
Life of this patent
Estimating the term…
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AssigneeNgk Spark Plug Co., Ltd.
InventorsIsao Matsuoka, Hiroshi Matsui
Estimating the term…
An ultrasonic humidifier comprising an atomizing chamber 2 containing water which is atomized by an ultrasonic vibration board 4 to be discharged therefrom. A water supply tank 11 is provided with a valve rod 14 having a valve 15 adapted to close a water outlet 13 thereof. The valve rod 14 protrudes by the elastic force of a spring. A water supply tank chamber 5 which, when said water supply tank is mounted therein with the valve rod 14 directed downward, relatively depresses the lower end of the valve rod with the bottom thereof to open the water outlet 13. A valve rod receiving chamber 6 communicates with the tank chamber. The water level of the atomizing chamber 2 is equal to the level of said water outlet 13 of the water supply tank which confronts with the valve rod receiving chamber 6. A water delivering path (17a or 17b) establishing communication between the valve rod receiving chamber 6 and the atomizing chamber is bent and elongated in a horizontal plane thereof.
In an ultrasonic humidifier having an atomizing chamber containing water which is atomized by an ultrasonic vibration board, a water supply tank provided with a valve adapted to close a water outlet thereof, said valve having a valve rod, a water supply tank chamber holding said water supply tank mounted therein with the valve rod directed downwrd, and a valve rod receiving chamber communicating with said tank chamber, the water level of said atomizing chamber being maintained equal to the level of said water outlet of said water supply tank confronting with said valve rod receiving chamber, the improvement comprising;
Dependencies are inferred from the claim text.