Apparatus for heating smokable material, article for use therewith and method of manufacture of article

• US 10,863,766 B2
• Filed: 03/31/2016
• Issued: 12/15/2020
• Est. Priority Date: 03/31/2015
• Status: Active Grant

• Current Assignee: Nicoventures Trading Ltd. (British American Tobacco PLC)
• Original Assignee: British American Tobacco Limited (British American Tobacco PLC)
• Inventors: Sutton, Joseph, Woodcock, Dominic, Vallabh, Hitesh, Litten, Neil, Singh, Harpal, Seymour, Darren, Russell, David, Bitar, Ahmad
• Primary Examiner(s): Yaary, Eric
• Application Number:
  US15/563,065
• Publication Number:
  US 20180338520A1
• Time in Patent Office: 1,720 Days
• CPC Class Codes: A24B 15/14 made of tobacco and a binding agent not derived from tobacco
• CPC Class Codes: A24B 3/14 Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products delustering A24C1/40
• CPC Class Codes: A24C 5/01 Making cigarettes for simulated smoking devices
• CPC Class Codes: A24D 1/20 Cigarettes specially adapted for simulated smoking devices
• CPC Class Codes: A24F 40/20 Devices using solid inhalable precursors
• CPC Class Codes: A24F 40/44 Wicks
• CPC Class Codes: A24F 40/46 Shape or structure of electric heating means

Abstract

An article is provided for use with an apparatus for heating smokable material. The article has a body of porous aerosol containment material. An annular first body of smokable material is located around the body of porous aerosol containment material. There is also provided apparatus for heating smokable material having a first heater extending along an axis and a second heater spaced from and at least partially surrounding the first heater. A method of manufacturing an article for use with an apparatus is also disclosed in which an assembly having porous aerosol containment material on a first layer of smokable material is provided and rolled so the first layer of smokable material becomes an annular body of smokable material located around the porous aerosol containment material.

Claims

1. An article for use with apparatus for heating smokable material to volatilize at least one component of the smokable material, the article comprising:

a body of porous aerosol containment material;

an annular first body of smokable material located around the body of porous aerosol containment material; and

an annular second body of thermally-conductive material located around and in contact with the annular first body of smokable material, the annular second body of thermally-conductive material comprising a metal foil.

2. An article according to claim 1, wherein the annular first body of smokable material is in contact with the body of porous aerosol containment material.

3. An article according to claim 2, wherein the body of porous aerosol containment material is annular.

4. An article according to claim 3, wherein the body of porous aerosol containment material fills a space that is surrounded by the annular first body of smokable material.

5. An article according to claim 3, wherein the body of porous aerosol containment material is located around an air gap of the article.

6. An article according to claim 1, comprising a second body of smokable material, wherein the body of porous aerosol containment material is located around the second body of smokable material.

7. An article according to claim 6, wherein the second body of smokable material is annular.

8. An article according to claim 7, comprising an annular first body of thermally-conductive material, wherein the second body of smokable material is located around the annular first body of thermally-conductive material.

9. An article according to claim 6, wherein the smokable material of the annular first body of smokable material has a form or chemical composition that differs from the form or chemical composition, respectively, of the smokable material of the second body of smokable material.

10. An article according to claim 9, wherein the smokable material of one of the annular first body of smokable material or the second body of smokable material includes an aerosol forming agent, and the smokable material of the other of the annular first body of smokable material or the second body of smokable material is free or substantially free of the aerosol forming agent.

16. An article according to claim 8, wherein the annular first body of thermally-conductive material comprises a metal foil.

11. A method of manufacturing an article for use with apparatus for heating smokable material to volatilize at least one component of the smokable material, the method comprising:

providing an assembly comprising porous aerosol containment material on a first layer of smokable material, and a second layer of thermally-conductive material comprising a metal foil, the first layer of smokable material being on the second layer of thermally-conductive material; and

rolling the assembly so that the first layer of smokable material becomes an annular first body of smokable material located around the porous aerosol containment material and so that the second layer of thermally-conductive material becomes an annular second body of thermally-conductive material located around and in contact with the annular first body of smokable material.

12. A method according to claim 11, wherein the rolling comprises rolling the assembly so that the porous aerosol containment material becomes an annular body of porous aerosol containment material which is arranged to be located around an air gap of the article.

13. A method according to claim 11, wherein the assembly comprises a second layer of smokable material on the porous aerosol containment material.

14. A method according to claim 13, wherein the smokable material of the first layer of smokable material has a form or chemical composition that differs from the form or chemical composition, respectively, of the smokable material of the second layer of smokable material.

15. A kit comprising:

an article for use with apparatus for heating smokable material to volatilize at least one component of the smokable material, the article comprising a body of porous aerosol containment material, an annular first body of smokable material located around the body of porous aerosol containment material, and an annular second body of thermally-conductive material located around and in contact with the annular first body of smokable material, the annular second body of thermally-conductive material comprising a metal foil; and

apparatus for heating the smokable material of the article to volatilize at least one component of the smokable material, wherein the apparatus has an interface and the article is for co-operating with the interface of the apparatus.