Aerosol delivery device with integrated inductive heater

Patent metadata

Field	Value
Publication number	US-12426633-B2
Application number	US-202117221363-A
Country	US
Kind code	B2
Filing date	Apr 2, 2021
Priority date	Apr 2, 2021
Publication date	Sep 30, 2025
Grant date	Sep 30, 2025

Abstract

The present disclosure is directed to an aerosol delivery device and a holder for use with a removable substrate cartridge. The removable cartridge comprises an ignitable heat source and a substrate portion that includes a substrate material having an aerosol precursor composition configured to form an aerosol upon application of heat thereto. The holder includes a main body defining a receiving chamber configured to receive the substrate cartridge, a power source, and an inductive heating assembly. A least a portion of the inductive heating assembly is integral with the main body and is configured to ignite the ignitable heat source and to heat at least a portion of the substrate material.

First claim

The invention claimed is:

1. An aerosol delivery device comprising:
a removable cartridge comprising an ignitable heat source and a substrate portion that includes a substrate material having an aerosol precursor composition configured to form an aerosol upon application of heat thereto; and
a holder comprising a main body defining a proximal end and a distal end, the main body further defining a receiving chamber configured to receive the substrate cartridge and an aerosol passageway that extends through at least a portion of the main body, a power source located in the main body, and an inductive heating assembly,
wherein the inductive heating assembly is powered by the power source, wherein at least a portion of the inductive heating assembly is integral with the main body, wherein the inductive heating assembly ignites the ignitable heat source and heats at least a portion of the substrate material,
wherein the cartridge is removable and replaceable within the holder,
wherein the removable cartridge further comprises an outer housing, and wherein the outer housing circumscribes the entire heat source and substrate material.

2. The aerosol delivery device of claim 1 , wherein the inductive heating assembly includes a resonant transmitter comprising an inductor coil located proximate at least a portion of the receiving chamber, wherein at least a portion of the cartridge comprises a susceptor material, and wherein the inductor coil is configured to heat the susceptor material.

3. The aerosol delivery device of claim 2 , wherein the outer housing of the cartridge comprises the susceptor material.

4. The aerosol delivery device of claim 2 , wherein the substrate material comprises the susceptor material.

5. The aerosol delivery device of claim 2 , wherein the ignitable heat source comprises the susceptor material.

6. The aerosol delivery device of claim 1 , wherein the inductive heating assembly comprises a first portion configured to heat the ignitable heat source, and a second portion configured to heat the portion of the substrate material.

7. The aerosol delivery device of claim 6 , wherein the first and second portions are independently controllable.

8. The aerosol delivery device of claim 1 , wherein the inductive heating assembly is configured to heat the ignitable heat source for a first period of time, and wherein the inductive heating assembly is configured to heat the portion of the substrate material for a second period of time.

9. The aerosol delivery device of claim 8 , wherein the first period of time and the second period of time start substantially simultaneously.

10. The aerosol delivery device of claim 8 , wherein the first period of time occurs before the second period of time.

11. The aerosol delivery device of claim 8 , wherein the second period of time occurs before the first period of time.

12. The aerosol delivery device of claim 8 , wherein the first and second periods of time at least partially overlap.

13. The aerosol delivery device of claim 1 , wherein the inductive heating assembly is automatically activated when the removable cartridge is received in the receiving chamber.

14. The aerosol delivery device of claim 1 , wherein the inductive heating assembly is activated via a button located on the holder.

15. The aerosol delivery device of claim 1 further comprising an ejection mechanism configured to eject the removable cartridge from the receiving chamber.

Assignees

• Reynolds Tobacco Co R

Inventors

• Jackson Thaddeus
• Aller Jared
• Conner Billy T
• Webb Bill
• Harsacky Chris

Classifications

• H05B6/105

  using a susceptor · CPC title

• H05B6/065

  using coordinated control of multiple induction coils · CPC title

• A61M15/06

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

• A24F40/60

  Devices with integrated user interfaces · CPC title

• A24D1/22 Primary

  Cigarettes with integrated combustible heat sources, e.g. with carbonaceous heat sources · CPC title