Check valve
US5967180A · kind A · utility
14Cited by
21References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1998 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Mar 12, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7927
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A check valve (12) includes a cage (14) having a tubular side wall (16) including outward and inward undulations (28,30) that provide fluid flow through the check valve and externally thereof as well as providing guiding of an associated valve element ball (36).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.