Dynamic diffuser of a substance such as a perfume
US5480591A · kind A · utility
38Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1995 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | Mar 15, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/88
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The dynamic diffuser for a naturally diffusing liquid substance such as a perfume comprises a receptacle for said substance and having a vertical flank which is closed by a membrane that is impermeable to liquid but permeable to gas. All or part of the membrane is caused to come into contact with said substance, at least intermittently, by revolving the receptacle about a horizontal axis. Air-flow generating means, e.g. impeller blades, serve to cause air to flow over the outside of the membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.