Method and apparatus for controlling the supply of energy to a heating load in a smoking article
US5372148A · kind A · utility
520Cited by
24References
68Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1993 |
| Grant date | Dec 13, 1994 |
| Priority date | — |
| Expiry date | Feb 24, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/13
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method and an apparatus for controlling energy flow into a heating load array of a smoking article are provided. In response to a pressure drop in the mouthpiece of the smoking article, a selected load in the heating load array is switchably connected to a power supply. Energy delivered to the load is measured and the load is disconnected when a predetermined amount of energy has been delivered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.