To provide an air pump for supplying pressurized air into an aquarium capable of linking to a plurality of air pipes to be linked to an air supplying portion of a filter, air stone or the like in the aquarium without useless dangle.
There is provided an air pump for aquariums in which a plurality of helical grooves 51, 52, 53 are formed in parallel with an outer periphery of a truncated conical shaped pump case C, a plurality of air pipes 61, 62, 63 are wound thereon unwindably/windably respectively, the base portion of the air pipes 61, 62, 63 are respectively linked to a plurality of air discharging ports of the pump unit U, and their free ends are detachably linked to fixing portions 71, 72, 73 on the upper portion of the pump case C, respectively.
| WO/2021/245996 | BUBBLE GENERATION DEVICE AND BUBBLE GENERATION SYSTEM |
| JP2021503967 | Aquaculture process for producing salmon eggs |
Kazuaki Niki
Nude Shima Shinji
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