Apparatus for heating aerosol generating material and a cartridge for the apparatus

Patent metadata

Field	Value
Publication number	US-11433191-B2
Application number	US-201716086991-A
Country	US
Kind code	B2
Filing date	Mar 30, 2017
Priority date	Mar 30, 2016
Publication date	Sep 6, 2022
Grant date	Sep 6, 2022

Abstract

There is described a cartridge for use with an apparatus for heating aerosol generating material to volatilize at least one component of the aerosol generating material. The cartridge includes a first body defining a first chamber and aerosol generating material is located within the first chamber. The first body includes a first base including a sheet of heat conductive material and has a first outer surface and at least a major portion of the first outer surface is for contacting a first heating surface of a heater of the apparatus for heating the aerosol generating material within the first chamber.

First claim

The invention claimed is:

1. A cartridge for use with an apparatus for heating aerosol generating material to volatilize at least one component of the aerosol generating material, the cartridge comprising:
a first body defining a first chamber, wherein the first body comprises a first base comprising a sheet of heat conductive material and having a first outer surface; and
aerosol generating material located within the first chamber;
wherein at least a major portion of the first outer surface of the first base is adapted to contact a first heating surface of a heater of the apparatus for heating the aerosol generating material within the first chamber, and wherein the first base is substantially parallel to a longitudinal axis of the first body;
wherein the cartridge further comprises:
a second body defining a second chamber, wherein the second body comprises a second base comprising a sheet of heat conductive material having a second outer surface; and
aerosol generating material located within the second chamber;
wherein at least a major portion of the second outer surface of the second base is adapted to contact a second heating surface of the heater of the apparatus, and wherein the second base is substantially parallel to a longitudinal axis of the second body; and

wherein the first base and the second base are connected together to enable relative pivotal movement of the first base and the second base so that a user can bring the first outer surface into contact with the first heating surface of the heater and the second outer surface into contact with the second heating surface of the heater.

2. The cartridge according to claim 1 , wherein the sheet of heat conductive material is flexible.

3. The cartridge according to claim 1 , wherein the first body comprises a first cover attached to the first base, wherein the first cover and the first base define the first chamber.

4. The cartridge according to claim 3 , wherein the first cover comprises a first portion and a second portion at one end of the first portion, wherein the first portion is wider than the second portion.

5. The cartridge according to claim 4 , wherein the first cover comprises a third portion at another end of the first portion, wherein the first portion is wider than the third portion.

6. The cartridge according to claim 1 , wherein the first base and the second base are connected along a first line of weakening to enable the relative pivotal movement.

7. The cartridge according to claim 6 , wherein the first line of weakening is one of a perforated line, a serrated line or a cut line.

8. The cartridge according to claim 1 , wherein the first base and the second base are, in a pre-use configuration, connected at respective sides of the first base and the second base that are substantially perpendicular to a longitudinal axis of the cartridge.

9. The cartridge according to claim 8 , wherein the second body comprises a second cover attached to the second base, wherein the second cover and the second base define the second chamber, and wherein the first cover and the second cover are, in the pre-use configuration, connected along a second line of weakening which ruptures when the first base and the second base undergo relative pivotable movement, whereby the first cover and the second cover are separated to provide at least one of a volatilized material and an aerosol outlet for the first cover and at least one of a volatilized material and an aerosol outlet for the second cover.

10. The cartridge according to claim 9 , wherein the first base comprises a first piercer and the second base comprises a second piercer.

11. The cartridge according to claim 10 , wherein the first piercer is for piercing the second base to provide an air inlet for the second chamber and the second piercer is for piercing the first base to provide an air inlet for the first chamber.

12. The cartridge according to claim 11 , wherein the first cover comprises a first portion and a second portion at one end of the first portion, wherein the first portion is wider than the second portion, wherein the second piercer is positioned on the second base so as to pierce the first base at a point covered by the second portion of the first cover.

13. The cartridge according to claim 11 , wherein the second cover comprises a first portion and a second portion at one end of the first portion, wherein the first portion is wider than the second portion, wherein the first piercer is positioned on the first base so as to pierce the second base at a point covered by the second portion of the second cover.

14. The cartridge according to claim 1 , wherein the first base and the second base are, in a pre-use configuration, connected at respective sides of the first base and the second base that that are substantially parallel to a longitudinal axis of the cartridge.

15. The cartridge according to claim 14 , wherein the second body comprises a second cover attached to the second base, wherein the second cover and the second base define the second chamber.

16. The cartridge according to claim 15 , wherein the first base comprises a first piercer and the second base comprises a second piercer.

17. The cartridge according to claim 16 , wherein the first piercer is for piercing the second base to provide an air inlet for the second chamber and the second piercer is for piercing the first base to provide an air inlet for the first chamber.

18. The cartridge according to claim 16 , wherein the first cover comprises a first portion and a second portion at one end of the first portion, wherein the first portion is wider than the second portion, wherein the second piercer is positioned on the second base so as to pierce the first base at a point covered by the second portion of the first cover.

19. The cartridge according to claim 17 , wherein the second cover comprises a first portion and a second portion at one end of the first portion, wherein the first portion is wider than the second portion, wherein the first piercer is positioned on the first base so as to pierce the second base at a point covered by the second portion of the second cover.

20. The cartridge according to claim 9 , further comprising a heat resistant adhesive adhering the second cover to the second base, wherein the heat resistant adhesive is only provided in regions where the second cover is adhered to the second base.

21. The cartridge according to claim 1 , wherein the sheet of heat conductive material includes a first inner surface and at least a portion of the first inner surface is rough, wherein the aerosol generating material is located on the portion of the first inner surface that is rough.

22. The cartridge according to claim 21 , wherein the portion of the first inner surface that is rough comprises a plurality of protuberances.

23. The cartridge according to claim 21 , wherein the portion of the first inner surface is embossed.

24. The cartridge according to claim 21 , wherein the portion of the first inner surface includes one or more score lines or holes.

25. The cartridge according to claim 24 , wherein the aerosol generating material is separated into one or more sections based on the one or more score lines.

Assignees

• British American Tobacco Investments Ltd
• Nicoventures Trading Ltd

Inventors

• Fallon Gary
• Bray Andrew
• Park Jeonghwan
• Ghanouni Kav
• Hepworth Richard
• Aoun Walid Abi
• Kaljura Karl

Classifications

• A24F47/00 Primary

  Smokers' requisites not otherwise provided for · CPC title

• A24F40/46

  Shape or structure of electric heating means · CPC title

• A24F40/10

  Devices using liquid inhalable precursors · CPC title

• A61M2205/3334

  Measuring or controlling the flow rate · CPC title

• A61M15/06

  Inhaling appliances shaped like cigars, cigarettes or pipes · CPC title