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.:
Date of Patent:
Mar. 28, 2023
Filed:
Oct. 30, 2019
Rai Strategic Holdings, Inc., Winston-Salem, NC (US);
Charles Jacob Novak, III, Winston-Salem, NC (US);
Sean A. Daugherty, Yadkinville, NC (US);
Michael Ryan Galloway, Winston-Salem, NC (US);
Jason L. Wood, Lexington, NC (US);
Mark Frisbee, Raleigh, NC (US);
Wilson Christopher Lamb, Hillsborough, NC (US);
Raymond Charles Henry, Jr., Green Cove Springs, FL (US);
Nadi Findikli, Clinton, NJ (US);
RAI Strategic Holdings, Inc., Winston-Salem, NC (US);
Abstract
An aerosol delivery device is provided that includes a power source, a heating element, a switch coupled to and between the power source and the heating element, and processing circuitry coupled to the switch. The processing circuitry outputs a PWM signal during a heating time period to cause the switch to switchably connect and disconnect the output voltage to the heating element to power the heating element. The processing circuitry outputs a pulse of known current to the heating element, and measure voltage across the heating element, between adjacent pulses of the PWM signal. And the processing circuitry calculates the resistance of the heating element based on the known current and the voltage, calculates the temperature of the heating element based on the resistance, and adjusts a duty cycle of the PWM signal when the temperature deviates from a predetermined target.