Invention Grant
- Patent Title: Electrically heated smoking system
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Application No.: US15432459Application Date: 2017-02-14
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Publication No.: US10194697B2Publication Date: 2019-02-05
- Inventor: Felix Fernando , Marc-Robert Chemla , Fredrik Stahle
- Applicant: PHILIP MORRIS PRODUCTS S.A.
- Applicant Address: CH Neuchatel
- Assignee: Philip Morris Products S.A.
- Current Assignee: Philip Morris Products S.A.
- Current Assignee Address: CH Neuchatel
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: EP10251966 20101119
- Main IPC: A24F47/00
- IPC: A24F47/00 ; H02J7/00 ; H05B1/02 ; H01M10/0525 ; H01M10/44

Abstract:
An electrically heated smoking system is provided, including a secondary unit configured to receive a smoking article having an aerosol-forming substrate. The secondary unit includes at least one heating element, an interface configured to connect to a primary power supply, a secondary power supply, and secondary circuitry. The secondary circuitry is configured to control supply of electrical power from the secondary supply to the heating element (a) in a pre-heating mode, during which a substrate temperature is increased to an operating temperature, and (b) in a smoking mode, during which a substrate temperature is maintained at substantially the operating temperature; and to control charging of the secondary supply by the primary supply in a charging mode, to have sufficient charge to increase a substrate temperature to the operating temperature in the pre-heating mode and to maintain the substrate temperature at substantially the operating temperature during the smoking mode.
Public/Granted literature
- US20170150758A1 ELECTRICALLY HEATED SMOKING SYSTEM Public/Granted day:2017-06-01
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