Tobacco – Cigar or cigarette making – Molding or forming
Reexamination Certificate
2005-04-12
2005-04-12
Walls, Dionne A. (Department: 1731)
Tobacco
Cigar or cigarette making
Molding or forming
C131S084200, C131S084100, C131S110000, C131S109200
Reexamination Certificate
active
06877515
ABSTRACT:
Apparatus for making one or more rod-like fillers of shredded tobacco for use in the making of cigarettes or the like employs one or two pneumatic conveyors having endless foraminous belts trained over pulleys and including elongated stretches below communicating parts of a common suction chamber. A shower of intermixed tobacco shreds and smaller particles including tobacco dust and coarser particles is directed against the undersides of the elongated stretches. The shreds are attracted to and advance with the respective belts to form streams which are ready to be trimmed and thereupon draped into cigarette paper or the like. At least some smaller particles penetrate through the respective belts into the corresponding parts of the suction chamber. The contents of the suction chamber are evacuated by suction and are returned to the undersides of the elongated stretches of the belts for classification.
REFERENCES:
patent: 3282270 (1966-11-01), Morris et al.
patent: 4003385 (1977-01-01), Adebahr et al.
patent: 4281670 (1981-08-01), Heitmann et al.
patent: 4721119 (1988-01-01), Ludszeweit et al.
patent: 5125419 (1992-06-01), Heitmann
patent: 3919720 (1990-12-01), None
Heitmann Uwe
Lorenzen Heinz-Christen
Anderson Chad
Hauni Maschinenbau AG
Kinberg Robert
Venable LLP
Walls Dionne A.
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