Heat conducting substrate for electrically heated aerosol delivery device

Patent metadata

Field	Value
Publication number	US-12279641-B2
Application number	US-202117244245-A
Country	US
Kind code	B2
Filing date	Apr 29, 2021
Priority date	Feb 26, 2018
Publication date	Apr 22, 2025
Grant date	Apr 22, 2025

Abstract

The present disclosure provides aerosol generating substrates and aerosol source members comprising aerosol generating substrates, as well as methods of manufacturing thereof. In an example implementation, an aerosol generating substrate may comprise a fibrous filler material, an aerosol forming material, and a plurality of heat conducting constituents, wherein the substrate is formed as a sheet, and wherein the heat conducting constituents are part of the sheet. The heat conducting constituents may be incorporated within the sheet, or may be formed on a surface of the sheet. In another example implementation, an aerosol source member may comprise a substrate portion formed of a collection of intermingled pieces cut from an aerosol substrate sheet. In addition, or alternatively, a substrate portion may be formed of a series of overlapping layers of an aerosol substrate sheet.

First claim

The invention claimed is:

1. An aerosol source member for use with an induction heated aerosol delivery device having a resonant transmitter, the aerosol source member comprising:
a plurality of spheronized granules comprising:
a fibrous filler material;
an aerosol forming material; and
a plurality of heat conducting constituents,

wherein the plurality of heat conducting constituents comprise a resonant receiver configured to exhibit an alternating current when exposed to an oscillating magnetic field from the resonant transmitter, and wherein the plurality of spheronized granules comprise an extruded and spheronized mixture of the fibrous filler material, aerosol forming material, and plurality of heat conducting constituents.

2. The aerosol source member of claim 1 , wherein the aerosol source member further comprises a binder material.

3. The aerosol source member of claim 1 , wherein the form of the heat conducting constituents comprises at least one of a granular form, a powder form, a fiber form, a mesh form, and a fiber cloth form.

4. The aerosol source member of claim 1 , wherein the material of the heat conducting constituents comprises one or more of a metal material, a metal alloy material, a ceramic material, a carbon material, a polymeric fiber material coated with a metal material, and combinations thereof.

5. The aerosol source member of claim 1 , wherein the plurality of heat conducting constituents comprises at least one of a metal mesh laminate and a metal fiber cloth laminate.

6. The aerosol source member of claim 1 , wherein the fibrous filler material comprises at least one of a tobacco material and a tobacco-derived material.

7. The aerosol source member of claim 1 , wherein the fibrous filler material comprises a non-tobacco material.

8. An induction heating aerosol generation system, the system comprising:
an aerosol source member comprising:
a plurality of spheronized granules comprising:
a fibrous filler material;
an aerosol forming material; and
a plurality of heat conducting constituents; and

a control unit that includes a resonant transmitter,
wherein the plurality of heat conducting constituents comprise a resonant receiver configured to exhibit an alternating current when exposed to an oscillating magnetic field from the resonant transmitter of the control unit, and wherein the plurality of spheronized granules comprise an extruded and spheronized mixture of the fibrous filler material, aerosol forming material, and plurality of heat conducting constituents.

9. The induction heating aerosol generation system of claim 8 , wherein the substrate portion further comprises a binder material.

10. The induction heating aerosol generation system of claim 8 , wherein the form of the heat conducting constituents comprises at least one of a granular form, a powder form, a fiber form, a mesh form, and a fiber cloth form.

11. The induction heating aerosol generation system of claim 8 , wherein the material of the heat conducting constituents comprises one or more of a metal material, a metal alloy material, a ceramic material, a carbon material, a polymeric fiber material coated with a metal material, and combinations thereof.

12. The induction heating aerosol generation system of claim 8 , wherein the plurality of heat conducting constituents comprises at least one of a metal mesh laminate and a metal fiber cloth laminate.

13. The induction heating aerosol generation system of claim 8 , wherein the fibrous filler material comprises at least one of a tobacco material and a tobacco-derived material.

14. The induction heating aerosol generation system of claim 8 , wherein the fibrous filler material comprises a non-tobacco material.

15. The induction heating aerosol generation system of claim 8 , wherein the control body includes a separate resonant receiver located therein.

Assignees

• Rai Strategic Holdings Inc

Inventors

• Sebastian Andries
• Sears Stephen Benson
• Conner Billy Tyrone
• Sur Rajesh
• Cole S Keith
• Jackson Thaddeus
• Thomas Timothy Frederick
• Braxton Paul E
• Doe Curtis Foster
• Hejazi Vahid
• Wilberding Kathryn Lynn

Classifications

• A24D1/14

  Tobacco cartridges for pipes · CPC title

• A24F40/465

  specially adapted for induction heating · CPC title

• A24F40/20

  Devices using solid inhalable precursors · CPC title

• A24D1/20

  Cigarettes specially adapted for simulated smoking devices · CPC title

• A61M11/042

  electrical · CPC title