Methods and apparatus for a controllable vapor-dispensing device
US6920282B2 · kind B2 · utility
35Cited by
221References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2003 |
| Grant date | Jul 19, 2005 |
| Priority date | — |
| Expiry date | Aug 13, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01M1/2077
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A vapor-dispensing device exhibiting a range of evaporation rates corresponding to a discernable range of sensory fragrance intensity levels. The vapor-delivery device includes one or more control structure (e.g., a heat control, a vent control, and/or the like) configured to allow a user to specify the evaporation rate of the vapor-dispensing device over a continuous or discretized range of values. In accordance with another aspect of the invention, the two extremes of operation correspond to a range of sensory fragrance intensity values that span at least three minimum perceivable intensity zones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.