Diffuser device for volatile substances
US7204870B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2004 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Oct 28, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/88
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A diffuser device (1) for volatile substances comprises a motor unit (2) and a refill unit (3) which can be assembled with each other. The motor unit (2) comprises a fan (6) for sucking in air comprising a body (60) and an electric motor (M1) which drives a plurality of blades (62) in rotation, electrical power supply means (4, 5) for the motor (M1) and a structure (20, 21) to support the fan (6) and the power supply means (4, 5). The refill unit comprises a refill of volatile substances (9), air filtering means (90) and a support structure (30) for the refill (9) and the filtering means (90). The filtering means (90) are situated upstream of the fan (6) to filter all the air sucked in by the fan (6). A laminar air flow generated in the fan body (60) strikes the refill (90) to favour diffusion of the volatile substances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.