Anti-reflux valve
US3968925A · kind A · utility
9Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 1975 |
| Grant date | Jul 13, 1976 |
| Priority date | — |
| Expiry date | May 12, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7891
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An anti-reflux valve mounted at the inlet port to the fluid collection chamber of a fluid collection bag and having a thin flexible valve element which is retained for limited floating movement over the inlet port and which flexes to permit flow of fluid into the collection chamber and which is moved against a valve seat surface surrounding the inlet port in response to fluid pressure inside of the collection chamber to thus prevent reflux of such fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.