Air inlet
US4473094A · kind A · utility
27Cited by
10References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1982 |
| Grant date | Sep 25, 1984 |
| Priority date | — |
| Expiry date | Jun 9, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86332
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An integral air inlet which in use admits filtered gases into a fluid container, especially infusion fluid containers, comprises a needle sealed to a housing which is closed by an air filter, the housing having disposed within it a duck bill valve which permits gas to flow from the outside and into the fluid container. The presence of the duck bill valve prevents fluid contacting the air filter thereby reducing the risk of bacterial contamination the fluid when gas is admitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.