Tobacco-containing smoking article

Patent metadata

Field	Value
Publication number	US-10226079-B2
Application number	US-201815961217-A
Country	US
Kind code	B2
Filing date	Apr 24, 2018
Priority date	Oct 18, 2006
Publication date	Mar 12, 2019
Grant date	Mar 12, 2019

Abstract

A smoking article may include a cigarette incorporated within an electrically powered aerosol generating device that acts as a holder for that cigarette. The smoking article possesses at least one form of tobacco. The smoking article also possesses a mouth-end piece that is used by the smoker to inhale components of tobacco that are generated by the action of heat upon components of the cigarette. A representative smoking article possesses an outer housing incorporating a source of electrical power (e.g., a battery), a sensing mechanism for powering the device at least during periods of draw, and a heating device (e.g., at least one electrical resistance heating element) for forming a thermally generated aerosol that incorporates components of tobacco. During use, the cigarette is positioned within the device, and after use, the used cigarette is removed from the device and replaced with another cigarette.

First claim

What is claimed is:

1. An electrically-powered, aerosol-generating smoking article comprising:
an electrical power source within a housing having a mouth-end and an end distal to the mouth-end;
at least one electrical resistance heater powered by said electrical power source;
a puff-actuated controller within the housing comprising a sensor adapted to sense draw on the smoking article by a user, wherein current flows through the electrical resistance heater in response to the sensor sensing draw on the smoking article; and
a carrier device proximate the mouth-end of the housing and comprising a cartridge providing a liquid storage compartment storing an aerosol-forming material and having openings such that air may flow therethrough;
wherein the carrier device is operatively positioned such that the aerosol-forming material can be wicked into contact with the electrical resistance heater and volatilized during draw to produce an aerosol that can be drawn into the mouth of the user of the smoking article.

2. The smoking article of claim 1 , wherein the aerosol-forming material comprises glycerin, propylene glycol, or a mixture thereof.

3. The smoking article of claim 1 , wherein the aerosol-forming material comprises a flavoring agent.

4. The smoking article of claim 1 , wherein the aerosol-forming material comprises nicotine.

5. The smoking article of claim 4 , wherein the nicotine comprises nicotine extracted from tobacco.

6. The smoking article of claim 1 , wherein the aerosol-forming material comprises tobacco extract.

7. The smoking article of claim 1 , wherein the aerosol-forming material comprises an organic acid.

8. The smoking article of claim 1 , wherein the aerosol-forming material comprises glycerin, nicotine, and a flavoring agent.

9. The smoking article of claim 8 , wherein the aerosol-forming material further comprises an organic acid.

10. The smoking article of claim 1 , wherein the aerosol-forming material does not include pure nicotine, extracts composed predominantly of nicotine, or formulations composed predominantly of nicotine.

11. The smoking article of claim 1 , further comprising a mouth-end piece engaged with the mouth-end of the housing.

12. The smoking article of claim 11 , wherein the mouth-end piece is maintained in place by friction fit with the mouth-end of the housing.

13. The smoking article of claim 1 , further comprising an absorbent fibrous material, wherein at least a portion of the aerosol-forming material is absorbed within the absorbent fibrous material.

14. The smoking article of claim 1 , wherein the puff-actuated controller is positioned between the cartridge and the end distal to the mouth-end.

15. The smoking article of claim 1 , wherein the electrical resistance heater provides surface region temperatures of at least 200° C. and less than 600° C.

16. The smoking article of claim 1 , comprising only one electrical resistance heater.

17. An electrically-powered aerosol-generating smoking article comprising:
a housing having a mouth-end and an end distal to the mouth-end;
an electrical power source within the housing at the distal end;
an electrical resistance heater powered by the electrical power source;
a puff-actuated controller within the housing that comprises a sensor adapted to sense draw on the smoking article by a user, wherein current flows through the electrical resistance heater in response to the sensor sensing draw on the smoking article;
an aerosol-forming material with a flavoring agent; and
a carrier device engaged with the mouth-end of the housing and having openings such that air may flow through,
wherein the carrier device is operatively positioned such that the aerosol-forming material with the flavoring agent can be wicked into contact with the electrical resistance heater and volatilized during draw to produce an aerosol that can be drawn into the mouth of the user of the smoking article.

18. The smoking article of claim 17 , wherein the aerosol-forming material comprises glycerin, propylene glycol, or a mixture thereof.

19. The smoking article of claim 17 , wherein the aerosol-forming material comprises nicotine.

20. The smoking article of claim 19 , wherein the nicotine comprises nicotine extracted from tobacco.

21. The smoking article of claim 17 , wherein the aerosol-forming material comprises tobacco extract.

22. The smoking article of claim 17 , wherein the aerosol-forming material comprises an organic acid.

23. The smoking article of claim 17 , wherein the aerosol-forming material comprises glycerin and nicotine.

24. The smoking article of claim 23 , wherein the aerosol-forming material further comprises an organic acid.

25. The smoking article of claim 17 , wherein the aerosol-forming material does not include pure nicotine, extracts composed predominantly of nicotine, or formulations composed predominantly of nicotine.

26. The smoking article of claim 17 , further comprising a mouth-end piece engaged with the mouth-end of the housing.

27. The smoking article of claim 26 , wherein the mouth-end piece is maintained in place by friction fit with the mouth-end of the housing.

28. The smoking article of claim 17 , further comprising an end cap at the end distal to the mouth-end.

29. The smoking article of claim 17 , further comprising an absorbent fibrous material, wherein at least a portion of the aerosol-forming material is absorbed within the absorbent fibrous material.

30. The smoking article of claim 17 , wherein the puff-actuated controller is positioned between the carrier device and the end distal to the mouth-end.

Assignees

• Rai Strategic Holdings Inc

Inventors

• Robinson John Howard
• Griffith Jr David William
• Conner Billy Tyrone
• Crooks Evon Llewellyn
• Brewer Jr Dempsey Bailey

Classifications

• H05B2203/021

  Heaters specially adapted for heating liquids · CPC title

• A24B15/12

  of reconstituted tobacco · CPC title

• H05B3/42

  non-flexible · CPC title

• A24B15/167

  in liquid or vaporisable form, e.g. liquid compositions for electronic cigarettes · CPC title

• A24D1/002

  with additives, e.g. for flavouring · CPC title