| 摘要 |
PROBLEM TO BE SOLVED: To provide an long-life oxygen feeder free from vibration and noise as a simple structure having no operation part. SOLUTION: In the electrolyte type water tank pump, a plurality of pairs of electrodes are provided in an alkali electrolytic solution and direct current pulsating current is passed between electrodes to generate a mixed gas of oxygen with hydrogen and the generated gas is discharged from discharge stones having many pores into a water tank or a waste water for rearing fishes to supply oxygen. As a result, the water tank pump solves large defects generating vibration and noise and a defect causing breakage of inlet and discharge valves in a short time in conventional pumps increasing oxygen dissolved in the water tank for rearing aquarium fishes. COPYRIGHT: (C)2006,JPO&NCIPI
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