Plant husbandry – Water culture – apparatus or method
Patent
1997-04-24
1999-03-30
Carone, Michael J.
Plant husbandry
Water culture, apparatus or method
47 62R, A01G 3100
Patent
active
058873830
ABSTRACT:
A liquid supply pump unit for hydroponic culture, which can perform oxygen enrichment and has a small power consumption, and a hydroponic culture apparatus, which utilizes this liquid supply pump unit and automatically supplies a larger amount of oxygen in the daytime when the plant growth is active, are disclosed. The liquid supply pump unit includes a container for containing a culture liquid for hydroponic plant culture, a partition member for partitioning an interior of the container to charge the partitioned interior with air, an air blow portion formed below the partition member to supply air inside the partition member, an air supply pump for supplying air to the air blow portion, an air discharge portion for intermittently discharging air from the partition member to a portion above the partition member, and an inflow/outflow pipe connected to a side surface of the container to allow the culture liquid to flow into/from the container upon a change in liquid level of the culture liquid caused by air discharge from the air discharge portion. The hydroponic culture apparatus described above is constituted by connecting a culture tank to the liquid supply pump unit described above, and uses a solar battery as the drive power supply of the air supply pump.
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Abbott Yvonne R.
Carone Michael J.
Farmer's Design Inc.
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