Vaporizers and wick assemblies therefor
US4774032A · kind A · utility
53Cited by
15References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1986 |
| Grant date | Sep 27, 1988 |
| Priority date | — |
| Expiry date | Dec 17, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49861
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A wick assembly (1) for use in e.g. an anaesthetic vaporizer (not shown) comprises layer (2) of absorbent wick material, e.g. a metallic wire cloth, secured to an impermeable backing sheet (3) e.g. of stainless steel. The wick material (2) and backing sheet (3) are rolled into a spiral configuration and thus define a spiral flow passage for gas to be vaporized. Fastening means are provided to hold the wick material (2) and sheet (3) in the spiral configuration whereby the assembly forms a self-contained unit adapted to be detachably mounted in a vaporizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.