Coaxial cigarette

US4874004A · kind A · utility

Assignee

• B.A.T. Cigarettenfabriken GmbH · DE

Inventors

• Horst Borowski · Hamburg, DE
• Erwin Kausch · Bayreuth, DE
• Erhard Rittershaus · Hamburg, DE
• Gert Rudolph · Hamburg, DE
• Werner Schneider · Erbach, DE

Key dates

• Filing date: Dec 9, 1988
• Grant date: Oct 17, 1989
• Expiry date: Dec 9, 2008

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A24D3/04
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

A coaxial cigarette comprising an inner core of a material, which glows substantially residue-free, in particular tobacco material, a wrapper for the inner core, an outer jacket which consists of a tobacco and/or non-tobacco material and coaxially surrounds the inner core and its wrapper, and a wrapper for the outer jacket, has a ventilated coaxial filter with a filter core, the internal diameter of which corresponds substantially to the diameter of the inner core, and with a filter jacket; the filter core has an air-impermeable wrapper; the filter jacket has an air-permeable wrapper; the wrapper of the inner core and the wrapper of the outer jacket are provided with glow agents; and the draw resistance of the inner core is lower than the draw resistance of the outer jacket.