Cigarette filter unit and method for the production thereof

Details Cigarette filter unit and method for the production thereof Cigarette filter unit and method for the production thereof

1986-08-22

1988-12-20

Millin, V.

Tobacco

Smoke separator or treater

Interior surface causes particular flow characteristic

131340, 493 42, 493 45, A24D 304, A24D 302

Patent

active

047919434

ABSTRACT:
In order, when a cigarette is being smoked, to reduce, or even reverse, the tendency of the condensate-content to increase, a cigarette filter unit is proposed in which at least one partition having at least two areas of different porosities and made of a material which allows smoke to pass through it, is arranged between each two filter elements aligned axially with one another in the flow cross section of the filter unit. In this connection, a first partition area is designed in such a manner that its permeability decreases as the portion of tobacco associated with the cigarette filter unit is smoked, the tobacco smoke, passing through the said cigarette filter unit, flowing increasingly through the second partition area.

REFERENCES:
patent: 3368566 (1968-02-01), Avedikian
patent: 3533416 (1970-10-01), Berger
patent: 4034765 (1977-07-01), Van Hall

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