Heat generation apparatus for an aerosol-generation system of a smoking article, and associated smoking article

Patent metadata

Field	Value
Publication number	US-12089628-B2
Application number	US-202318330762-A
Country	US
Kind code	B2
Filing date	Jun 7, 2023
Priority date	Sep 25, 2013
Publication date	Sep 17, 2024
Grant date	Sep 17, 2024

Abstract

A smoking article is provided, having opposed lighting and mouth ends, and including a mouth end portion at the mouth end. A tobacco portion is between the lighting end and the mouth end portion. An aerosol-generation system is between the lighting end and the tobacco portion. The aerosol-generation system includes a heat generation portion, comprising an elongate fluted member actuated by ignition of the lighting end. The fluted member defines grooves extending longitudinally between opposed first and second ends, with the first end being at the lighting end and the grooves being equidistantly spaced apart about the fluted member. Each groove has a maximum depth. The depth maxima of the grooves define a circle having a radius. The maximum depth of each groove is no more than the radius of the circle. A heat generation apparatus for an aerosol-generation system of a smoking article is also provided.

First claim

That which is claimed:

1. An elongate smoking article having a first end and an opposed second end, said smoking article comprising:
a heat generation member in contact with a tobacco portion arranged toward the first end;
a perforated paper wrapping material associated with the tobacco portion and the heat generation member; and
a first filter material engaged with the paper wrapping material and extending longitudinally outward of the heat generation member at the first end.

2. The smoking article according to claim 1 , wherein the first filter material comprises a cellulose acetate material or a non-cellular acetate material.

3. The smoking article according to claim 1 , comprising a paper material engaged with the first filter material.

4. The smoking article according to claim 1 , wherein the perforated paper wrapping material comprises a plurality of perforations arranged toward a mouth end portion disposed at the second end of the elongate smoking article.

5. The smoking article according to claim 1 , wherein the heat generation member is in a heat exchange relationship with a tobacco portion arranged toward the first end of the elongate smoking article.

6. The smoking article according to claim 5 , wherein the tobacco portion comprises a sheet of tobacco material.

7. The smoking article according to claim 5 , comprising a filter portion arranged between the tobacco portion and the second end, the filter portion including a second filter material.

8. The smoking article according to claim 7 , wherein the second filter material comprises a cellulose acetate material.

9. The smoking article according to claim 7 , comprising an outer wrapping material circumscribing at least the filter portion.

10. The smoking article according to claim 1 , wherein the perforated paper wrapping material comprises a cellulose material.

Assignees

• Reynolds Tobacco Co R

Inventors

• Conner Billy Tyrone
• Tilley Timothy Franklin

Classifications

• A24D1/22 Primary

  Cigarettes with integrated combustible heat sources, e.g. with carbonaceous heat sources · CPC title