Rosenberg, Klein & Lee
Bubble generating device
A bubble generating device includes a central tube having a hollow interior and a float is connected to the central tube. The central tube extends through a disk and a porous film is fixedly mounted to a peripheral wall of the disk A U-shaped tube is connected to the disk and communicates with the hollow interior of the central tube. Two ends of the U-shaped tube respectively communicate with a space between the disk and the porous film. Air enters from the central tube and flows out from two ends of the U-shaped tube to generate bubbles via the porous film.
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Sheng-Jye Shueei-Muh Sen-Yung Hsin-Mao
Hwang Lin Lee Hsieh