Wick-based liquid emanation system with child-resistant and miniaturization features
US6236807A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2000 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Jan 7, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F6/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A vapor emanation system includes a plastic housing having a socket portion and an electric plug portion. A decorative miniaturize container containing liquid to be evaporated by heat, has a body for storing the liquid and a neck connected to the body for engaging the socket portion of the housing for supporting the container on the housing. The neck has a passage there through and a retaining ring is fixed in the passage. A hole extends through the ring. A wick having an upper portion extending through the hole of the retaining ring also has a lower portion extending down into the body of the container for absorbing liquid from the container and for moving the liquid into the upper portion of the wick by capillary action. A tangential electric heater in the housing heats the upper portion of the wick above the neck to evaporate liquid from the wick. A retaining pin extending through the wick below the neck, extends radially beyond the wick by an amount which precludes upward extraction of the wick from the retaining ring to prevent a child from removing the wick and being exposed to the liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.