Coaxial cigarette
US5388596A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1992 |
| Grant date | Feb 14, 1995 |
| Priority date | — |
| Expiry date | Mar 4, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24D1/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The invention relates to a coaxial cigarette comprising a coaxial tobacco rod of a core and a rod periphery which contain different mixtures, the sheaths of the rod core and the rod periphery consisting of combustible material and a filter mouthpiece being provided at one end of the coaxial tobacco rod; according to the invention, the ratio of the draw resistance of the core per unit length to the packing density thereof lies in the range from about 0.13 to about 0.27 mm WC cm.sup.2 /mg whilst the ratio of the draw resistance per unit length of the rod periphery to the packing density thereof lies in the range of about 0.07 to about 0.11 mm WC cm.sup.2 /mg; the filter mouthpiece is a conventional preferably ventilated filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.