Apparatus for incorporating air modifying agents
US6368564B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 25, 1999 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Jun 25, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L9/16
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus are described for dispersing an air modifying agent (e.g. a fragrance) in air. The air modifying agent and an electrolyte are entrained in a gel-based aqueous reservoir (7), which contacts a pair of electrodes (8, 9) which are +ve and −ve with respect to each other to provide an electrical potential between the electrodes. The electrical potential powers a small motor and fan (13, 14) which disperse the air modifying agent from the surface of the reservoir (7) to the surrounding atmosphere via apertures (16) in a housing (10) of the apparatus. The electrical potential can power additional or alternative electrical devices such as lighting and heating devices, and the arrangement may be such that the extent of exhaustion of the air modifying agent from the reservoir (7) corresponds generally to the extent of exhaustion of electrode (8, 9) activity, whereby the operability of the electrical device indicates the presence of air modifying agent in the reservoir (7).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.