Low pressure check valve for artificial respiration devices
US5103854A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1991 |
| Grant date | Apr 14, 1992 |
| Priority date | — |
| Expiry date | Sep 24, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7843
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve assembly is disclosed for controlling fluid flow in a first direction and a second direction. The valve assembly includes a housing for enclosing a substantially circular regulator assembly which extends diametrically across the housing. The regulator assembly comprises a hub portion which is positioned centrally within the housing and connecting members which extend radially toward a rim portion which is supported by the housing. The hub portion supports a disk-shaped substantially inflexible portion of the regulator assembly which extends over the connecting members to engage the rim portion and thereby prevent fluid flow in a reverse flow direction through the regulator assembly. The connecting members of the regulator assembly are adapted to flex and allow the disk portion to move off of the rim and thereby allow fluid flow through the valve in the first direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.