Method and apparatus for selective positioning a wick material in a vapor-dispensing device
US6697571B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2002 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Mar 11, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L9/03
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention achieves advancement in the art by providing a method and apparatus for selective positioning of a wick material in a vapor-dispensing device that facilitates effective fragrance vapor delivery while offering significant advantages in manufacture, assembly, product performance, and product safety. In one embodiment, the wick is suitably selected and positioned such that sufficient surface area of the wick material is suitably exposed to the heating unit to enable effective evaporation of a vaporizable liquid, but the wick height relative to the heating element minimizes the amount of surface area of the wick in proximity to the heating element. Additionally, the positioning call reduce the need for protective overcaps and other apparatus for protecting the wick.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.