IT1172183B - Filter tip for cigarette
- Google Patents
Filter tip for cigarette
Info
Publication number
IT1172183B
IT1172183BIT49968/81AIT4996881AIT1172183BIT 1172183 BIT1172183 BIT 1172183BIT 49968/81 AIT49968/81 AIT 49968/81AIT 4996881 AIT4996881 AIT 4996881AIT 1172183 BIT1172183 BIT 1172183B
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Publication date
Priority claimed from GB8136886Aexternal-prioritypatent/GB2090117B/en
Application filed by Imp Group LtdfiledCriticalImp Group Ltd
Publication of IT8149968A0publicationCriticalpatent/IT8149968A0/en
Application grantedgrantedCritical
Publication of IT1172183BpublicationCriticalpatent/IT1172183B/en
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.
IT49968/81A1980-12-221981-12-21Filter tip for cigarette
IT1172183B
(en)