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:
Feb. 01, 2022
Filed:
Jul. 24, 2017
Applicant:
British American Tobacco (Investments) Limited, London, GB;
Inventors:
Mitchel Thorsen, Madison, WI (US);
Roger Watkins, Madison, WI (US);
Assignee:
Nicoventures Trading Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 11/04 (2006.01); A24F 40/50 (2020.01); A61M 16/10 (2006.01); A24F 40/20 (2020.01); A61M 15/06 (2006.01);
U.S. Cl.
CPC ...
A61M 11/042 (2014.02); A24F 40/50 (2020.01); A61M 16/109 (2014.02); A24F 40/20 (2020.01); A61M 15/06 (2013.01);
Abstract
A method and apparatus for controlling a heater arrangement in a device arranged to heat smokable material is described. The method includes implementing a heater control loop, which control loop performs steps in one or more successive control periods. The control steps include determining a current remaining on time for a heating element of a heater arrangement based on the current rate of change of temperature, a target temperature and a current temperature of a zone of the device arranged to heat smokable material.