Harvesters – Fruit gatherer
Patent
1985-11-01
1987-02-17
Mancene, Gene
Harvesters
Fruit gatherer
56 165, A01D 5100
Patent
active
046429778
ABSTRACT:
A nut harvester and separator, particularly for nuts such as pecans, almonds and walnuts, includes a wheeled frame drawn by a tractor over nut and trash windrows on the nut-orchard ground. Power-driven pick-up and lifting reels within a longitudinal plenum on the frame advance the picked-up material well into the plenum. A power-driven suction fan is open to the top of the plenum and draws atmospheric air into the plenum partially through a powered chain conveyor largely defining the bottom wall of the plenum. Atmospheric air is also drawn into the plenum through side inlets in an initial free fall zone of separation providing separation and removal of a large fraction of the light debris which is lifted through the suction fan and discharged to the atmosphere. Heavy, less aerodynamically responsive nuts are left behind to lodge on the conveyor along with the remaining fraction of light debris to form a blanket. The blanket restricts upward flow of air through the rearwardly moving conveyor until the leading edge of the blanket approaches the rearwardly converging downstream, or back, wall of the plenum where the Venturi effect of the wall helps to induce a vigorous updraft in the vicinity of the wall capable of disrupting the leading edge of the blanket where final separation of the debris takes place and the isolated nuts are discharged into a towed cart or other container.
REFERENCES:
patent: 3872657 (1975-03-01), Ramacher et al.
patent: 4121778 (1978-10-01), Quick
patent: 4174001 (1979-11-01), Ellis
patent: 4364222 (1982-12-01), Ramacher et al.
patent: 4550465 (1985-11-01), Chrisley
Mancene Gene
Ramacher Manufacturing Company
Tarnoff David I.
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