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:
Jul. 09, 2019
Filed:
May. 19, 2017
Nu Mark Innovations Ltd., Beit Shemesh, IL;
Eyal Peleg, Tsoran, IL;
David Cohen, Harei Yehuda, IL;
Harold Brooks, Holliswood, NY (US);
Dorron Levy, Givatayim, IL;
Nu Mark Innovations Ltd., Beit Shemesh, IL;
Abstract
An electronic vaping device includes a battery section and a cartridge coupled to the battery section. The cartridge includes a reservoir and a heating coil. The battery section includes a controller. The controller is configured to: calculate a first value of a heat transfer time constant of the heating coil; calculate a second value of the heat transfer time constant of the heating coil; compute a difference between the first value and the second value; determine that the difference between the first value and the second value exceeds a threshold value; and output an indication that the liquid formulation in the reservoir is becoming depleted in response to determining that the difference between the first value and the second value exceeds the threshold value.