Harvesters – Motorized harvester – Including driven air-blower unit
Patent
1979-06-18
1981-09-08
Halper, Robert
Harvesters
Motorized harvester
Including driven air-blower unit
209 3, 209137, 209147, 56130, A01D 4522
Patent
active
042877075
ABSTRACT:
A harvester for beans and like crop includes a pick-up reel having a width equal to the overall width of the harvester and leading to a first, cleaning, conveyor which terminates at an air passage incorporating a fan for generating a generally vertical air flow. Where the vertical air passage meets the cleaning conveyor, a rotary valve is provided which permits the passage of the beans and other parts of the crop but prevents or at least restricts the passage of the air flow into the space above the upper run of the conveyor.
The rotary valve may take the form of a rotary vaned assembly having six vanes each of which is secured to one face of a hexagonal shaft and various forms of rotary valve are also described.
REFERENCES:
patent: 1137184 (1915-04-01), Brugge
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patent: 1843404 (1932-02-01), Rosmussen
patent: 2693068 (1954-11-01), Rodin
patent: 3105784 (1965-01-01), Osteen
patent: 3306018 (1967-02-01), Whitman
patent: 3446347 (1969-05-01), French
patent: 3555794 (1971-01-01), Gable
patent: 3596716 (1971-08-01), Hoffman
patent: 3705483 (1972-12-01), Jarrell
patent: 3929628 (1975-12-01), Denevi
patent: 3962072 (1976-06-01), Ramacher
Persoons Gustaaf M.
Wijts Corneel C.
FMC Corporation
Halper Robert
Pizzanelli L. J.
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