IT1172183B - Filter tip for cigarette - Google Patents

Filter tip for cigarette

Info

Publication number
IT1172183B
IT1172183B IT49968/81A IT4996881A IT1172183B IT 1172183 B IT1172183 B IT 1172183B IT 49968/81 A IT49968/81 A IT 49968/81A IT 4996881 A IT4996881 A IT 4996881A IT 1172183 B IT1172183 B IT 1172183B
Authority
IT
Italy
Prior art keywords
cylindrical part
cigarette
circumferential surface
filter tip
ventilated
Prior art date
Application number
IT49968/81A
Other languages
Italian (it)
Other versions
IT8149968A0 (en
Inventor
David Thomas Westcott
Noel Evans
Keith Milsom
Original Assignee
Imp Group Ltd
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
Priority claimed from GB8136886A external-priority patent/GB2090117B/en
Application filed by Imp Group Ltd filed Critical Imp Group Ltd
Publication of IT8149968A0 publication Critical patent/IT8149968A0/en
Application granted granted Critical
Publication of IT1172183B publication Critical patent/IT1172183B/en

Links

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

The cigarette filter has a cylindrical part with a circumferential surface of transverse circular section. It also has a ventilated end envelope passing around the cylindrical part and a spacer keeping the end separated from the cylindrical part. Air channels run longitudinally towards the end of the assembly and come in contact with the smoking mouthpiece. They are partly defined by the spacer element and the circumferential surface. In use, air passes across the ventilated end envelope.
IT49968/81A 1980-12-22 1981-12-21 Filter tip for cigarette IT1172183B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8041009 1980-12-22
GB8121419 1981-07-11
GB8121420 1981-07-11
GB8136886A GB2090117B (en) 1980-12-22 1981-12-08 Ventilated cigarette tip

Publications (2)

Publication Number Publication Date
IT8149968A0 IT8149968A0 (en) 1981-12-21
IT1172183B true IT1172183B (en) 1987-06-18

Family

ID=27449219

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49968/81A IT1172183B (en) 1980-12-22 1981-12-21 Filter tip for cigarette

Country Status (2)

Country Link
AT (1) AT382300B (en)
IT (1) IT1172183B (en)

Also Published As

Publication number Publication date
ATA552281A (en) 1986-07-15
IT8149968A0 (en) 1981-12-21
AT382300B (en) 1987-02-10

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