Tobacco – Tobacco treatment – Puffing
Patent
1988-03-21
1989-07-04
Millin, V.
Tobacco
Tobacco treatment
Puffing
131291, A24B 318
Patent
active
048441015
ABSTRACT:
Comminuted tobacco material expanding apparatus which includes a cellular wheel feeder and an expansion chamber integrated in the cellular wheel feeder. A nozzle opening in a wall of the expansion chamber provides for the introduction of a mixture of air and stream for accelerating the tobacco material under a pressure drop to at least 50 m/s with a residence time of the tobacco material in the expansion chamber of less than about 1/10 s. At least one nozzle opening is located in an end wall of the expansion chamber near the bottom so that an adjustable stream/air mixture moves the tobacco material substantially at a right-angle out of the expansion chamber. The expansion chamber is connected to an acceleration tube with converging cross-section which is connected to a delay tube.
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patent: 4418706 (1983-12-01), Kim et al.
patent: 4513758 (1985-04-01), Henzelin et al.
patent: 4523598 (1985-06-01), Weiss et al.
patent: 4625736 (1986-12-01), Rothchild
patent: 4693264 (1987-09-01), Hedge
patent: 4697604 (1987-10-01), Brown et al.
patent: 4791942 (1988-12-01), Rickett et al.
Chemical Engineer's Handbook, John H. Perry et al., McGraw-Hill Book Company, Inc., 1963, pp. 7-32 through 7-33.
Hirsch Werner
Ritterhaus Erhard
Weiss Arno
B.A.T. Cigarettenfabriken GmbH
Bahr Robert W.
Millin V.
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