Backflow check valve for use with IV administration sets
US4310017A · kind A · utility
64Cited by
7References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1980 |
| Grant date | Jan 12, 1982 |
| Priority date | — |
| Expiry date | Jan 30, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7913
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A backflow check valve includes male and female hubs sonically welded together with a flow control disc located within the check valve. The disc permits flow in one direction through the check valve, but prevents flow in the other direction through the check valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.