Balanced flow tobacco smoke filter

Details Balanced flow tobacco smoke filter Balanced flow tobacco smoke filter

1991-10-28

1993-03-23

Millin, Vincent

Tobacco

Smoke separator or treater

By adding constituent to smoke stream

131339, 493 44, 493 45, A24D 104

Patent

active

051955431

ABSTRACT:
A cigarette filter having a core of synthetic fibrous filter material and an outer plug wrap is provided with a group of longitudinal bores and a group of peripheral channels in the core to improve the filtration efficiency and to balance the distribution of smoke flow over the cross-sectional area of the filter.

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