Filter mouthpiece for a smoking article

Details Filter mouthpiece for a smoking article Filter mouthpiece for a smoking article

1988-06-09

1990-07-24

Millin, V.

Tobacco

Smoke separator or treater

By adding constituent to smoke stream

131339, A24D 304

Patent

active

049428870

ABSTRACT:
A filter mouthpiece for a smoking article comprises a rod end portion having a tube extending axially therethrough and a mouth end portion. The tube is open at each end and has perforations in its wall. The peripheral surface of the filter mouthpiece is rendered air permeable in at least one discrete area by means of perforations in an impermeable tipping, to admit air to the filter. When attached to a tobacco rod this filter mouthpiece provides a substantially constant dry particulate matter delivery throughout the smoking of the article.

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