Filter for smoking article, mainly cigarette

Details Filter for smoking article, mainly cigarette Filter for smoking article, mainly cigarette

1978-02-21

1980-05-06

Millin, V.

Tobacco

Tobacco users' appliance

Supports

131 107, 131 109, 131266, A24B 1502, B01D 2502, B01D 2606, B01D 2702

Patent

active

042012341

ABSTRACT:
The invention is related to a new and improved filter for smoking articles, especially cigarettes, of the cavity type. In order to achieve better filtration, the cavity which is delimited by two substantially cylindrical filter portions made of fibrous material, spaced apart in the longitudinal direction of said filter, contains a particulate filtering matter being composed of two physical fractions of particles, the mean diameter of the particles of the first fraction being 20 to 50 times the mean diameter of the particles of the second fraction. Preferably, the particles of the first fraction have a mean diameter comprised between 0.2 and 1.2 mm, more preferably between 0.6 and 1.0 mm, and the particles of the second fraction have a mean diameter comprised between 0.006 and 0.040, more preferably between 0.010 and 0.030 mm. It is preferred that the volume ratio of the first to the second fraction is at least 2:1 and may amount until 50:1.

REFERENCES:
patent: 3251365 (1966-05-01), Keith et al.
patent: 3354886 (1967-11-01), Berger et al.
patent: 3608563 (1971-09-01), Schmitz
patent: 3718612 (1973-02-01), Strickman
patent: 3977417 (1976-08-01), Hoelzel et al.

Affiliated with

Also associated with

Rating

Filter for smoking article, mainly cigarette does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Filter for smoking article, mainly cigarette, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter for smoking article, mainly cigarette will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1000746