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1. WO2018134159 - APPARATUS FOR HEATING SMOKABLE MATERIAL

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[ EN ]

CLAIMS

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

a carrier having plural thermally-conductive portions on which are locatable respective discrete quantities of smokable material;

wherein, between the portions of the carrier, the carrier is shaped to form a thermal barrier for inhibiting heat conduction from one or more of the portions of the carrier towards another of the portions of the carrier in use.

2. The article of claim 1 , comprising the respective discrete quantities of smokable material on the plural thermally-conductive portions of the carrier.

3. The article of claim 2, wherein the smokable material is in the form of a gel or thin film.

4. The article of any one of the preceding claims, wherein the carrier is shaped to form thermal barriers between respective pairs of the portions of the carrier.

5. The article of any one of the preceding claims, wherein the, or each, thermal barrier surrounds a respective one of the portions of the carrier.

6. The article of any one of the preceding claims, wherein the, or each, thermal barrier comprises one or more holes through the carrier.

7. The article of any one of claims 1 to 5, wherein the, or each, thermal barrier comprises one or more channels or blind holes in the carrier.

8. The article of claim 7, comprising a mass of thermally-insulating material in the channel(s) or blind hole(s) of the, or each, thermal barrier.

9. The article of any one of the preceding claims, wherein the portions of the carrier are arranged as a two-dimensional array.

10. The article of any one of the preceding claims, wherein each of the portions of the carrier is made from heating material that is heatable by penetration with a varying magnetic field.

11. The article of claim 10, wherein the heating material comprises one or more materials selected from the group consisting of: an electrically-conductive material, a magnetic material, and a magnetic electrically-conductive material.

12. The article of claim 10 or claim 11, wherein the heating material comprises a metal or a metal alloy.

13. The article of any one of claims 10 to 12, wherein the heating material comprises one or more materials selected from the group consisting of: aluminium, gold, iron, nickel, cobalt, conductive carbon, graphite, plain-carbon steel, stainless steel, ferritic stainless steel, steel, copper, and bronze.

14. An article for use with apparatus for heating smokable material to volatilise at least one component of the smokable material, the article comprising or consisting of: a carrier having a surface; and

smokable material, in the form of a gel or thin film, on the surface of the carrier.

15. The article of claim 14, wherein the smokable material is coextensive or substantially coextensive with the surface of the carrier.

16. The article of claim 14, wherein the smokable material comprises plural discrete quantities of the smokable material on the surface of the carrier.

17. The article of any one of the preceding claims, wherein the carrier is a sheet.

18. The article of any one of the preceding claims, wherein the carrier has, or comprises a material having, a thermal conductivity of at least 10 W/(m.K) or at least 90 W/(m.K) or at least 200 W/(m.K).

19. The article of any one of the preceding claims, wherein the carrier comprises nickel and/or aluminium.

20. The article of claim 19, wherein the carrier comprises a laminate, and wherein the laminate comprises a layer of nickel and a layer of aluminium.

21. The article of any one of claims 1 to 19, wherein the carrier comprises a laminate, and wherein the laminate comprises a layer of nickel and a layer of paper.

22. The article of claim 20 or claim 21 , wherein the layer of aluminium or the layer of paper is located between the layer of nickel and the smokable material.

23. Apparatus for heating smokable material to volatilise at least one component of the smokable material, the apparatus comprising:

the article of any one of the preceding claims; and

a heating device for heating the thermally-conductive portions of the carrier.

24. Apparatus for heating smokable material to volatilise at least one component of the smokable material, the apparatus comprising:

a heating zone for receiving an article comprising smokable material;

a substrate comprising plural thermally-conductive portions, wherein, between the portions of the substrate, the substrate is shaped to create a thermal barrier for inhibiting heat conduction from one or more of the portions of the substrate towards another of the portions of the substrate in use; and

a heating device for heating the thermally-conductive portions of the substrate to thereby heat portions of the heating zone.

25. The apparatus of claim 24, wherein the substrate comprises heating material that is heatable by penetration with a varying magnetic field, and a nickel coating on the heating material.

26. A system for heating smokable material to volatilise at least one component of the smokable material, the system comprising:

the article of any one of claims 1 to 22; and

apparatus comprising a heating zone for receiving the article, and a heating device for heating the thermally-conductive portions of the carrier of the article when the article is located in the heating zone.

27. The apparatus of any one of claims 23 to 25 or the system of claim 26, wherein the heating device comprises plural heaters for heating respective ones of the thermally-conductive portions.

28. The apparatus or system of claim 27, wherein each of the thermally-conductive portions is made from heating material that is heatable by penetration with a varying magnetic field; and wherein the plural heaters comprise respective magnetic field generators for generating varying magnetic fields for penetrating the respective thermally-conductive portions in use.

29. The apparatus or system of claim 28, wherein the apparatus comprises a printed circuit board, wherein the magnetic field generators comprise respective coils formed in or on the printed circuit board.

30. The apparatus or system of any one of claims 27 to 29, wherein the apparatus comprises a controller for controlling operation of at least one of the plural heaters independently of at least one other of the plural heaters.

31. The system of any one of claims 26 to 30,

wherein the article is the article of any one of claims 1 to 13, or any one of claims 17 to 22 when dependent on any one of claims 1 to 13,

wherein the apparatus is the apparatus of claim 24 or claim 25, and

wherein the thermally-conductive portions of the carrier of the article align with the thermally-conductive portions of the substrate of the apparatus when the article is in the heating zone.