Illuminated air freshener
US7277626B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2003 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Sep 4, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L9/037
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed is a novel apparatus and method that combines a nightlight and an air freshener in a single device. The apparatus includes circuitry where a single resistor heats a heating block that heats and releases a volatile aromatic. The resistor also limits the current that passes through one or more light emitting diodes. The aromatic may be liquid scented oil held by a container. The container may also include a protruding wick that is heated by the heating block to facilitate oil evaporation. The light emitting diodes illuminate the housing and a decorative shield. The diodes may also illuminate fiber optic cables. The apparatus receives alternating current from a standard wall outlet. The circuitry utilized by the device ensures that the resistor is continuously powered during both half-cycles of the alternating current resulting in optimal heating of the aromatic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.