GEP19960647B - Cigarette filter - Google Patents

Cigarette filter

Info

Publication number
GEP19960647B
GEP19960647B GEAP1992197A GEAP1992000197A GEP19960647B GE P19960647 B GEP19960647 B GE P19960647B GE AP1992197 A GEAP1992197 A GE AP1992197A GE AP1992000197 A GEAP1992000197 A GE AP1992000197A GE P19960647 B GEP19960647 B GE P19960647B
Authority
GE
Georgia
Prior art keywords
air
filter rod
grooves
flowing
wrapper
Prior art date
Application number
GEAP1992197A
Inventor
Granville Lamb Charles
Original Assignee
Brown And Williamson Tobacco Corp Usa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brown And Williamson Tobacco Corp Usa filed Critical Brown And Williamson Tobacco Corp Usa
Priority to GEAP1992197A priority Critical patent/GEP19960647B/en
Publication of GEP19960647B publication Critical patent/GEP19960647B/en

Links

Abstract

A filter for a cigarette includes a porous filter rod circumscribed by a porous or air permeable wrapper, and ventilating air grooves embedded in the wrapped filter rod which extend from one end of the filter rod a preselected distance generally longitudinally thereof. The wall of each of the grooves defined by the wrapper is impermeable to air and smoke while at least a portion of the remaining area of the wrapper is air permeable. An air permeable tipping material circumscribes the wrapped filter rod which provides a path for ventilating air flow into the filter rod and a path for air flow into the grooves. Due to the air impermeable wall of the grooves, the air flowing in the grooves is segregated from the air and smoke flowing through the filter rod so that ventilating air is the only substance flowing in the grooves. The air flowing through the tipping material into the filter rod co-mingles with and dilutes the smoke flowing through the filter rod before it reaches the smoker's mouth.
GEAP1992197A 1992-10-01 1992-10-01 Cigarette filter GEP19960647B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GEAP1992197A GEP19960647B (en) 1992-10-01 1992-10-01 Cigarette filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GEAP1992197A GEP19960647B (en) 1992-10-01 1992-10-01 Cigarette filter

Publications (1)

Publication Number Publication Date
GEP19960647B true GEP19960647B (en) 1996-12-19

Family

ID=82309554

Family Applications (1)

Application Number Title Priority Date Filing Date
GEAP1992197A GEP19960647B (en) 1992-10-01 1992-10-01 Cigarette filter

Country Status (1)

Country Link
GE (1) GEP19960647B (en)

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