Tobacco-smoke filters

Details Tobacco-smoke filters Tobacco-smoke filters

A - Human Necessities

24

D

131/17

A24D 1/04 (2006.01) A24D 3/04 (2006.01)

Patent

CA 1091123

ABSTRACT A tobacco-smoke filter comprises a plug of filter material of which a transverse cross section is impervious to the passage of smoke except for a minor proportion of the area of that cross section which forms a smoke- accelerating orifice, the said plug being enclosed by an envelope permitting ingress of air into a region of the plug downstream of the orifice. The cross section may be impervious because of the presence of a barrier diaphragm of impervious material. Thus an annular groove may be provided in the plug at the said cross section and may be filled with, or have its walls coated with, an impervious material. Alternatively the said cross section may be impervious by reason of the closure of interstices in the filter material by the local application of heat thereto.

288040

Affiliated with

Also associated with

Rating

Tobacco-smoke filters does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tobacco-smoke filters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tobacco-smoke filters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-102878