Tobacco smoke filter (semi-circles)

Details Tobacco smoke filter (semi-circles) Tobacco smoke filter (semi-circles)

A - Human Necessities

24

D

131/80

A24D 3/00 (2006.01)

Patent

CA 1061218

ABSTRACT OF THE DISCLOSURE Tobacco smoke filters and methods and means for making same wherein the products have 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 ele- ment. 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.

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