Gas separation – With nonliquid cleaning means for separating media – For moving indefinite or continuous length separating media
Patent
1989-01-17
1989-12-05
Hart, Charles
Gas separation
With nonliquid cleaning means for separating media
For moving indefinite or continuous length separating media
55337, 55432, 554591, 55467, 406 67, 406109, 406173, B81D 5000, B65G 5340
Patent
active
048850128
ABSTRACT:
A rotary screen assembly for a pneumatic grain handling device is described which is comprised of a perforated cylindrical screen member rotatably driven by a propeller means which is placed in the airstream of the device. The screen assembly includes a cut-off plate positioned at the bottom inside surface of the screen member for interupting airflow through a portion of the screen member thereby creating a continuous cleaning action of the screen assembly. The screen assembly is particularly useful for preventing abrasive airborne particles from entering into and damaging the blower components.
REFERENCES:
patent: 3002585 (1961-10-01), Pasturczak
patent: 3475883 (1969-11-01), Sullivan
patent: 3955236 (1976-05-01), Mekelburg
patent: 4218226 (1980-08-01), Boozer
patent: 4411674 (1983-10-01), Forgac
patent: 4482367 (1984-11-01), Howeth
patent: 4572726 (1986-02-01), Van Abbema
patent: 4599016 (1986-07-01), Medemblik
patent: 4662800 (1987-05-01), Anderson et al.
WALINGA AGRI-VAC Sales Brochure, Jun. 1987, Distributed by Thompson Walinga Sales & Service, Courtland, Kans.
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