Diffuser for mounting a volatilizable substance above a container of heated liquid
US6371453B1 · kind B1 · utility
9Cited by
6References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 27, 2000 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Jan 27, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/89
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A diffuser 1 for diffusing essential oil into a room using steam comprising a housing 2, a liquid container 6 in the housing, a heater 11 for heating the liquids in the container 6 to vaporize it, and a support 5 for holding volatilizable-substance matter 20 above the liquid container. For convenience, the volatilizable-substance matter 20 is in the form of an aroma packet, having upper 22 and lower 23 cellulose tissue webs, holding between them some dried plant material, for example lavender blooms. The webs are sealed together at their edges by a rim, which is sized to fit the support of the diffuser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.