Electrically heated smoking system and methods for supplying electrical power from a lithium ion power source
US6803545B2 · kind B2 · utility
434Cited by
14References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2002 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Jan 11, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24F40/60
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An electrically heating smoking system wherein tobacco smoke is generated by heating a portion of a cigarette with an electrical resistance heating element powered by lithium ion battery cells. The lithium ion battery cells supply current to the electrical resistance heating element with current up to 20 times greater than the recommended discharge rate. To prevent damage to the lithium ion battery cells under such high discharge conditions, the smoking system includes a controller which provides modulated pulses of electrical power from the battery cells to the resistance heating element during smoking of the cigarette.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.