Humidifying apparatus
US5062145A · kind A · utility
151Cited by
10References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1989 |
| Grant date | Oct 29, 1991 |
| Priority date | — |
| Expiry date | Sep 27, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3368
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A humidifier of small gases passageway volume (of the order of 50 ml gases space) has a heater within a water containing envelope having a microporous wall common to the water space within the envelope and the gases space, the microporous wall being permeable to water vapour but not liquid water and the envelope being reinforced by a support which also directs the flow of gases over the surface of the envelope. The heater is wound as a flat spiral to avoid the effect of gases or water vapour bubbles on heater performance temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.