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:
Oct. 18, 2022
Filed:
Oct. 19, 2017
British American Tobacco (Investments) Limited, London, GB;
Duane Kaufman, London, GB;
Thomas P. Blandino, London, GB;
Nicoventures Trading Limited, London, GB;
Abstract
An inductive heating arrangement for heating smokable material includes a susceptor arrangement, at least first and second inductor coils and a control circuit. The first inductor coil generates a first varying magnetic field heating a first section of the susceptor arrangement and the second inductor coil generates a second varying magnetic field heating a second section of the susceptor arrangement. The control circuit is configured so that when one of the first and second coils is actively being driven to generate a varying magnetic field the other of the first and second inductor coils is inactive, and so that the inactive one of the first and second inductor coils is prevented from carrying a current induced by the active one of the first and second inductor coils sufficient to cause significant heating of the susceptor arrangement.