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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12027879 B1

PDFFull Text
Date of Patent:
Jul. 02, 2024

Filed:

Jan. 13, 2023

Induction-based aerosol delivery device

Applicant:

Rai Strategic Holdings, Inc., Winston-Salem, NC (US);

Inventors:

Rajesh Sur, Winston-Salem, NC (US);

James W. Rogers, Cornelius, NC (US);

Stephen B. Sears, Siler City, NC (US);

Eric T. Hunt, Pfafftown, NC (US);

Assignee:

RAI Strategic Holdings, Inc., Winston-Salem, NC (US);

Attorney:

WOMBLE BOND DICKINSON (US) LLP

Primary Examiner:

Thor S Campbell

Int. Cl.
CPC ...
H05B 6/10 (2006.01); A24F 40/20 (2020.01); A24F 40/465 (2020.01); A24F 40/50 (2020.01); A24F 40/57 (2020.01); A24F 40/90 (2020.01); A61M 11/04 (2006.01); H01G 11/06 (2013.01); H01M 10/0525 (2010.01); H02J 50/12 (2016.01); H02M 7/5387 (2007.01); H05B 1/02 (2006.01); H02J 7/00 (2006.01); H02J 50/10 (2016.01);
U.S. Cl.
CPC ...
H02J 50/12 (2016.02); A24F 40/20 (2020.01); A24F 40/465 (2020.01); A24F 40/50 (2020.01); A24F 40/57 (2020.01); A24F 40/90 (2020.01); A61M 11/042 (2014.02); H01G 11/06 (2013.01); H01M 10/0525 (2013.01); H02M 7/53871 (2013.01); H05B 1/0244 (2013.01); H05B 6/108 (2013.01); A61M 2205/3317 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/50 (2013.01); A61M 2205/8206 (2013.01); A61M 2205/8243 (2013.01); H01M 2220/30 (2013.01); H02J 7/00045 (2020.01); H02J 50/10 (2016.02); H05B 2206/024 (2013.01);
Abstract

An aerosol delivery device includes a receptacle configured to receive a substrate configured to carry an aerosol precursor composition, and a resonant transformer including a transmitter coupling device and a resonant receiver coupling device that is positioned in proximity to the substrate when received in the receptacle. The aerosol delivery device also includes a pulse width modulation (PWM) inverter configured to drive the resonant transformer. The PWM inverter includes a bridge circuit coupled to the transmitter coupling device, and a PWM controller embodied as an integrated circuit and configured to output a PWM signal to the bridge circuit configured to drive the transmitter coupling device to generate an oscillating magnetic field and induce an alternating voltage in the resonant receiver coupling device when exposed to the oscillating magnetic field. The alternating voltage causes the resonant receiver coupling device to generate heat and thereby vaporize components of the aerosol precursor composition.

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