Plant husbandry – Water culture – apparatus or method – Nutrient recirculation system
Patent
1990-04-20
1991-04-30
Raduazo, Henry E.
Plant husbandry
Water culture, apparatus or method
Nutrient recirculation system
47 63, A01G 3100
Patent
active
050106864
ABSTRACT:
A hydroponic system includes a channel-like trough formed of parallel side walls and an orthogonal bottom wall defining an upwardly opening coffer. A pair of oblique walls extend integrally from a medial portion of the bottom wall to respective medial portions of the side walls to define a V-shaped bottom in the interior of the trough. The oblique walls also strengthen the channel structure, and define with the bottom wall and side walls two closed longitudinal flow spaces extending the length of the trough. A pair of end caps are sealed to the ends of the trough, sealing the longitudinal flow spaces and forming a liquid retaining container. A longitudinally extending cover panel is configured to snap-engage the upper edges of the side walls of the trough. The cover panel is provided with a plurality of longitudinally spaced plant holes, and a plurality of plant supporting members are dimensioned to be supported in the plant holes. The plant holes that are not used are capped or plugged, so that there is no evaporation from the coffer, and no light to promote algae growth. A first pair of hose connectors extend through one end cap into the main chamber of the trough, one of the connectors being located at the bottom of the V-shaped trough, and the other located adjacent to the top of the trough. A second pair of hose connectors may be provided, each disposed to pump warm or cool liquid through the longitudinal flow spaces of the trough.
REFERENCES:
patent: 2909002 (1959-10-01), Hendry
patent: 3352057 (1967-11-01), Ferrand
patent: 3362106 (1968-01-01), Goldring
patent: 3603034 (1971-09-01), Stewart
patent: 4211034 (1980-07-01), Peisner
patent: 4255896 (1981-03-01), Carl
patent: 4669217 (1987-06-01), Fiaze
patent: 4887386 (1989-12-01), Minshull
Cohen Howard
Johnson Jerrold D.
Raduazo Henry E.
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