Electrically heated smoking system
US9775380B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2010 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Jun 27, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24F40/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrically heated smoking system includes a secondary unit capable of receiving a smoking article having an aerosol-forming substrate. The secondary unit includes at least one heating element and an interface for connection to a primary power supply for supplying electrical power to the at least one heating element during a pre-heating mode, to increase the temperature of the aerosol-forming substrate to an operating temperature. The secondary unit further includes a secondary power supply arranged to supply electrical power to the at least one heating element during a smoking mode, to maintain the temperature of the aerosol-forming substrate at substantially the operating temperature. The secondary unit also includes secondary circuitry. The electrically heated smoking system optionally includes a primary unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.