Filtered cigarette

Details Filtered cigarette Filtered cigarette

1983-12-05

1985-09-24

Millin, V.

Tobacco

Smoke separator or treater

By adding constituent to smoke stream

A24D 304

Patent

active

045427542

ABSTRACT:
A smoking article, such as a cigarette, includes generally cylindrically shaped, hollow tubular section located in coaxial abutment to one end of the tobacco column of the cigarette and a generally cylindrically shaped filter rod located in coaxial abutment with the tubular section. The wall of the tubular section is fabricated of an impermeable material. A plurality of grooves are formed in the periphery of the tubular section extending generally longitudinally thereof and being open to at least one end of the tubular section. Air permeable tipping material circumferentially surrounds the tubular section and the filter rod, and overlaps a portion of the tobacco column adjacent to the tubular section to fasten the tubular section and filter rod to the tobacco column.

REFERENCES:
patent: 3490461 (1970-01-01), Osmalov et al.

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