Method and apparatus for storing and transporting comminuted tob

Details Method and apparatus for storing and transporting comminuted tob Method and apparatus for storing and transporting comminuted tob

1982-12-08

1984-08-07

Millin, Vincent

Tobacco

Cigar or cigarette making

Tobacco feeding

406142, 198766, A24C 539

Patent

active

044637691

ABSTRACT:
Shredded tobacco is supplied from a storage reservoir to one or more cigarette making machines by way of discrete pneumatic conveying pipes. The reservoir receives fresh tobacco at regular or irregular intervals so that the quantity of tobacco in its interior is constant. The contents of the reservoir are maintained in suspension so that at least the major part of the supply of tobacco shreds forms a fluidized bed which is located directly below the intakes of the conveying pipes. When a machine requires a batch of tobacco shreds, the respective pipe is connected to a suction generating device so that it draws air from the region between the underside of the fluidized bed and the upper side of the bottom wall of the reservoir whereby the ascending current of air entrains tobacco particles directly from the fluidized bed. The supply of tobacco in the reservoir can be converted into a fluidized bed by mechanically agitating the reservoir so that the shreds move up and down and/or by causing a plurality of streamlets of compressed air to rise through perforations in the bottom wall of the reservoir. The latter may have a circular, semicircular or polygonal cross-sectional outline.

REFERENCES:
patent: 2968232 (1961-01-01), Carvallo
patent: 3062414 (1962-11-01), Morris
patent: 3099492 (1963-07-01), Mortimer
patent: 3260389 (1966-07-01), Paton
patent: 3351391 (1967-11-01), Green
patent: 3830548 (1974-08-01), Sem
patent: 3861753 (1975-01-01), Lesk et al.
patent: 3881498 (1975-05-01), Wochnowski
patent: 4155367 (1979-05-01), Rudszinai

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