Smoke filter

Details Smoke filter Smoke filter

1982-06-23

1985-01-08

Millin, V.

Tobacco

Smoke separator or treater

By adding constituent to smoke stream

131338, 131339, A24D 304

Patent

active

044922400

ABSTRACT:
This invention provides a smoke filter element comprising a filtering core, a smoke impermeable wrapper in surrounding engagement with the core, at least one internal passage defined between the impermeable wrapper and core and open at an end of the element, and at least one external passage defined by the outer surface of the impermeable wrapper and extending to an end of the element; and a cigarette filter comprising such an element having engaged around said impermeable wrapper tipping material which provides, when the filter is drawn on in use, for the ingress of external air laterally therethrough into said external passage(s). The tipping material may be a tipping overwrap incorporating the filter in a filtered cigarette. The impermeable wrapper may have longitudinal corrugations providing the passages, which may extend fully or only partially the length of the wrapper. The impermeable wrapper can have a circumferential groove communicating with the external passage(s), there being air dilution through the tipping material directly into the groove.

REFERENCES:
patent: 3490461 (1970-01-01), Osmalov et al.
patent: 3596663 (1971-08-01), Schultz et al.
patent: 4256122 (1981-03-01), Johnson et al.

Affiliated with

Also associated with

Rating

Smoke filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-109522