Cigarette manufacture

Details Cigarette manufacture Cigarette manufacture

1989-03-01

1991-03-26

Millin, V.

Tobacco

Cigar or cigarette making

Tobacco feeding

73866, 131905, 131906, 131907, 131910, 198500, 1985021, 209536, 209576, 209577, 209578, 209589, A24B 714

Patent

active

050020722

ABSTRACT:
A cigarette making machine includes one or more conveyor bands (12,14,28) or other parts of non-metallic material from which pieces can break off and become entrained in the tobacco, including means (30,42) for detecting such pieces in the tobacco by directing a radiation beam towards the tobacco, and including means 40 for ejecting tobacco or finished cigarettes including such detected pieces, the parts in question being made of a material, or having a material incorporated in then or coated on them, which is either opaque or partially opaque to the detection beam, or which produces a detectable secondary emission detected by the detecting means.

REFERENCES:
patent: 2237254 (1941-04-01), Broekhuysen
patent: 4212397 (1980-07-01), Bockelmann
patent: 4262806 (1981-04-01), Drabs
patent: 4657144 (1987-04-01), Martin et al.
patent: 4848590 (1989-07-01), Kelly

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