Tobacco smoke filter

Details Tobacco smoke filter Tobacco smoke filter

1975-12-24

1976-11-30

Pitrelli, John F.

Tobacco

Cigar or cigarette making

Including cooperating surfaces to induce rolling

131261B, 131265, A24D 104

Patent

active

039943062

ABSTRACT:
Tobacco smoke filters having a composite substantially cylindrical inner member formed from two semi-cylindrical inner elements and overwrapped with a common plug wrap. The composite inner member has a discrete inner cavity formed in each semi-cylindrical element and a composite cavity formed by a depressed portion in each semi-cylindrical element. A substantially smooth outer surface is provided on the composite inner member for attaching a conventional plug wrap without the need for an internal glue line. Separate cylindrical elements are reformed into semi-cylindrical elements and crimped to provide depressed pockets, following which the semi-cylindrical elements are mated and overwrapped to produce the final product.

REFERENCES:
patent: 3546325 (1970-12-01), Muller
patent: 3752166 (1973-08-01), Lyon et al.
patent: 3811451 (1974-05-01), Berger

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