Aerosol Delivery Device Including a Wirelessly-Heated Atomizer and Related Method

Patent metadata

Field	Value
Publication number	US-2021045455-A1
Application number	US-202017072669-A
Country	US
Kind code	A1
Filing date	Oct 16, 2020
Priority date	Nov 6, 2015
Publication date	Feb 18, 2021
Grant date	—

Abstract

The present disclosure relates to an aerosol delivery device configured to wirelessly heat an atomizer. The aerosol delivery device may include a control body and a cartridge. The control body may include an induction transmitter. The cartridge may include an induction receiver and an aerosol precursor composition. When electrical current is directed to the induction transmitter, the induction receiver may be inductively heated. The heat produced by the induction receiver may form an aerosol from the aerosol precursor composition at the substrate. Related methods are also provided.

First claim

1 . An aerosol delivery device, comprising:
an electrical power source; a pocket configured to receive a substrate including an aerosol precursor composition; an atomizer including an induction receiver surrounding but out of direct contact with the substrate when received by the pocket; and a wireless power transmitter including an induction transmitter surrounding but out of direct contact with the induction receiver, the induction transmitter configured to receive electrical current from the electrical power source that causes the induction transmitter to generate an oscillating magnetic field, and the induction receiver configured to generate heat via eddy currents induced at the induction receiver when exposed to the oscillating magnetic field and thereby heat the aerosol precursor composition to produce an aerosol.

2 . The aerosol delivery device of claim 1 , wherein the atomizer is removably attached to the aerosol delivery device.

3 . The aerosol delivery device of claim 1 , wherein the induction receiver is porous to allow the aerosol to freely pass through the induction receiver.

4 . The aerosol delivery device of claim 3 , wherein the induction receiver is a mesh, a screen, a helix or a braid.

5 . The aerosol delivery device of claim 1 , wherein the induction transmitter defines a tubular configuration or a coiled configuration.

6 . The aerosol delivery device of claim 1 further comprising a control body including the electrical power source and the induction transmitter, and a cartridge including the induction receiver and the substrate.

7 . The aerosol delivery device of claim 6 , wherein the control body further comprises an outer body, a controller, a flow sensor, and an indicator.

8 . The aerosol delivery device of claim 1 further comprising the substrate, and wherein the aerosol precursor composition includes a solid tobacco material or a semi-solid tobacco material.

9 . The aerosol delivery device of claim 1 further comprising the substrate, and wherein the aerosol precursor composition includes a liquid aerosol precursor composition.

10 . The aerosol delivery device of claim 9 further comprising a container and a sealing member that define an internal compartment for the liquid aerosol precursor composition, the container defining the pocket configured to receive the substrate, and the sealing member defining an aperture through which the substrate is extended to receive the liquid aerosol precursor composition from the internal compartment.

11 . A method for assembling an aerosol delivery device, comprising:
providing a pocket configured to receive a substrate including an aerosol precursor composition; providing an atomizer including an induction receiver surrounding but out of direct contact with the substrate when received by the pocket; providing a wireless power transmitter including an induction transmitter; and positioning the induction transmitter surrounding but out of direct contact with the induction receiver to thereby assemble the aerosol delivery device, the induction transmitter configured to receive electrical current from an electrical power source that causes the induction transmitter to generate an oscillating magnetic field, and the induction receiver configured to generate heat via eddy currents induced at the induction receiver when exposed to the oscillating magnetic field and thereby heat the aerosol precursor composition to produce an aerosol.

12 . The method of claim 11 , wherein the induction transmitter is positioned surrounding but out of direct contact with the induction receiver to thereby assemble the aerosol delivery device in which the atomizer is removably attached to the aerosol delivery device.

13 . The method of claim 11 , wherein providing the atomizer includes providing the atomizer in which the induction receiver is porous to allow the aerosol to freely pass through the induction receiver.

14 . The method of claim 13 , wherein providing the atomizer includes providing the atomizer in which the induction receiver is a mesh, a screen, a helix or a braid.

15 . The method of claim 11 further comprising positioning the substrate inside the induction receiver.

16 . The method of claim 15 , wherein positioning the substrate includes positioning the substrate in which the aerosol precursor composition includes a solid tobacco material or a semi-solid tobacco material.

17 . The method of claim 15 , wherein positioning the substrate includes positioning the substrate in which the aerosol precursor composition includes a liquid aerosol precursor composition.

18 . The method of claim 17 further comprising:
providing a container and a sealing member that define an internal compartment for the liquid aerosol precursor composition, the container defining the pocket in which the substrate is received;
filling the internal compartment with the liquid aerosol precursor composition; and
extending the substrate through an aperture defined through the sealing member to receive the liquid aerosol precursor composition from the internal compartment.

19 . The method of claim 11 further comprising forming a cartridge including the substrate and the induction receiver.

20 . The method of claim 11 further comprising forming a control body including coupling the electrical power source to the induction transmitter.

Assignees

• Rai Strategic Holdings Inc

Inventors

• Davis Michael F
• Sears Stephen Benson
• Carpenter Carolyn Rierson
• Clark Melissa Ann
• Fareed Shierina A
• Fox Denise
• Jin Tao
• Phillips Percy D
• Bless Alfred Charles
• Taluskie Karen V
• Nordskog Brian Keith
• Szabo David T
• Strasser Jr Josef

Classifications

• A24F47/00 Primary

  Smokers' requisites not otherwise provided for · CPC title

• A24F40/50

  Control or monitoring · CPC title

• A24F40/465 Primary

  specially adapted for induction heating · CPC title

• A24F40/40

  Constructional details, e.g. connection of cartridges and battery parts · CPC title

• A24F40/10

  Devices using liquid inhalable precursors · CPC title