Hydroponic plant cultivation device

Details Hydroponic plant cultivation device Hydroponic plant cultivation device

1984-12-31

1986-06-17

Hafer, Robert A.

Plant husbandry

Receptacle for growing medium

Specific container material

A01G 3102

Patent

active

045948119

ABSTRACT:
A hydroponic plant cultivation device is disclosed, wherein at least one rotating cultivation tower is arranged. The tower is formed by piling up a plurality of cultivation unit, each of which has a plurality of ports for allowing to receive and maintain a lower end of a plant to be cultivated, a nozzle for spraying a nutrient liquid therein, and a portion for accommodating a constant amount of the liquid to allow an overflow of any excess liquid to a lower cultivation unit. The nutrient liquid is measured on and adjusted in its concentration and pH and recycled between the tower and its supply source.

REFERENCES:
patent: Re21820 (1941-06-01), Munsell
patent: 2189510 (1940-02-01), Swaney
patent: 2928211 (1960-03-01), Martin
patent: 4006559 (1977-02-01), Carlyon, Jr.
patent: 4033072 (1977-07-01), Kubayashi
patent: 4216617 (1980-08-01), Schmidt
patent: 4250666 (1981-02-01), Rakestraw

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