Matsushita Electric Works, Ltd.

Harue Kawagoe

Naoki Kumon

Takashi Hatai

Shigekazu Kusanagi

Hidehiko Kishie

Shinya Hirota

Harushige Tsusaka

Shoichi Morii

Tsutomu Amaki

Keiichi Teramachi

Masanori Fukui

Kenji Koi

Noriyoshi Nakaoka

Hiroshi Kano

Shin Matsugi

A carbonate spring bath system creates a bath water dissolved with CO.sub.2 gas and supplies the same to a bathtub. The system includes a source of a concentrated CO.sub.2 gas, a circulation path connected to the bathtub and including a booster pump for circulating a bath water from and into the bathtub. CO.sub.2 gas and air supply lines are connected to the circulation path upstream of the pump. The CO.sub.2 gas and air supply lines includes valves which are opened and closed to provide the CO.sub.2 gas and the air at a suitable mixture ratio such that the CO.sub.2 gas and air are forced to dissolve in the pressurized bath water. Disposed downstream of the pump is an accumulator for separating undissolved gas in the bath water and storing in a gas chamber the undissolved gas emanating from the bath water. A recycle line connects the gas chamber to the circulation path upstream of the pump to return the undissolved gas to the circulation path. An exhaust line is connected to the gas chamber for exhausting the undissolved gas outwardly. The recycle and exhaust lines are provided respectively with valves which are controlled to open and close such that the system can selectively operates a recycle mode and an exhaust mode.

Carbonate spring bath system

A bubbling bathtub system including both a large bubble generator, which blows relatively large bubbles into a bathtub, and a minute bubble generator, which functions so that bath water with air dissolved therein by pressurization is sent to the bathtub to produce minute bubbles in the bath water, connected to the bathtub. The relatively large bubbles produced by the large bubble generator and the minute bubbles produced by the minute bubble generator cooperate to enhance the good feeling produced during bathing. Both or either of the relatively large bubbles and the minute bubbles can be optionally produced as the user desires for optimum effect.

Bubbling bathtub system

Growing community of inventors

Osaka, Japan

Harue Kawagoe