# US 10,945,465 B2 · Induction heated susceptor and aerosol delivery device

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- Number: US 10,945,465 B2
- Document ID: US10945465B2
- Status: Granted
- Kind: B2
- Application number: 15/921,805
- Filed: 2018-03-15
- Published: 2019-09-19
- Granted: 2021-03-16
- Earliest claimed: 2018-03-15
- Assignees: RAI Strategic Holdings, Inc.
- Applicants: RAI Strategic Holdings, Inc.
- Inventors: Vahid Hejazi; Steven L. Alderman; Eric T. Hunt
- Web page: https://patentgrep.com/patent/US10945465B2

## CPC

- H05B 6/108: {for heating a fluid}
- A24F 40/44: Wicks
- A24F 40/465: specially adapted for induction heating
- H05B 6/365: {using supplementary conductive or ferromagnetic pieces}
- A24F 40/10: Devices using liquid inhalable precursors
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06)

## Abstract

An aerosol delivery device is described that includes an aerosol precursor staged within a reservoir and an atomizer configured to generate heat through induction. The atomizer has an induction transmitter and an induction receiver. The induction receiver is in operational contact with the aerosol precursor within the reservoir and is configured to wick the aerosol precursor into range of the induction transmitter to be heated and vaporized.

## Claims

### Claim 1

An aerosol delivery device comprising:
an aerosol precursor staged within a reservoir; and
an atomizer configured to generate heat through induction,
wherein the atomizer comprises an induction transmitter and an induction receiver,
wherein the induction receiver is in operational contact with the aerosol precursor within the reservoir and is configured to wick the aerosol precursor into range of the induction transmitter to be heated and vaporized,
wherein the induction receiver comprises a porous conductive material, and
wherein the induction receiver comprises an annular ring, a bisecting core, and a plurality legs extending radially from the annular ring.

### Claim 2 (depends on 1)

The aerosol delivery device of claim 1, further comprising a control body housing a power source separably attached to a cartridge, the cartridge at least partially defining the reservoir.

### Claim 3 (depends on 2)

The aerosol delivery device of claim 2, wherein the induction transmitter is provided with the control body to wirelessly convey energy from the control body to the cartridge.

### Claim 4 (depends on 1)

The aerosol delivery device of claim 1, wherein the induction transmitter comprises a conductive coil.

### Claim 5 (depends on 4)

The aerosol delivery device of claim 4, wherein the conductive coil surrounds at least a portion of the induction receiver.

### Claim 6 (depends on 4)

The aerosol delivery device of claim 4, wherein the conductive coil is positioned adjacent to at least a portion of the induction receiver.

### Claim 7 (depends on 1)

The aerosol delivery device of claim 1, wherein the induction receiver comprises a porous electrically conductive or semi-conductive material selected from metals, ferromagnetic ceramics, or graphite.

### Claim 8 (depends on 7)

The aerosol delivery device of claim 7, wherein the induction receiver comprises porous iron foam.

### Claim 9

An aerosol delivery device, comprising:
a power source;
an induction transmitter; and
a susceptor,
wherein the susceptor is capable of and arranged to absorb aerosol precursor,
wherein the induction transmitter is configured to generate an oscillating magnetic field, and
wherein the susceptor is configured to generate heat in response to the oscillating magnetic field to vaporize at least some of the aerosol precursor absorbed by the susceptor into an aerosol,
wherein the susceptor comprises a porous conductive material, and
wherein the susceptor comprises an annular ring, a bisecting core, and a plurality legs extending radially from the annular ring.

### Claim 10 (depends on 9)

The aerosol delivery device of claim 9, wherein the susceptor comprises a porous conductive material.