Float-controlled humidifier
US4913140A · kind A · utility
100Cited by
22References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1988 |
| Grant date | Apr 3, 1990 |
| Priority date | — |
| Expiry date | Aug 17, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7494
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A humidifier for humidifying gases flowing from a source to a person, e.g. a patient breathing apparatus, has a gas chamber interconnected with a water compartment and at least one float controlled valve which controls the flow of water into the water compartment so that if the level of water in the gas chamber exceeds a predetermined level, flow of water to the water compartment is prevented. A further float controlled valve may be provided to prevent flow of water from the water compartment to the gas chamber when the water level in the gas chamber exceeds the predetermined, or a further predetermined, level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.