Flapper valves with spring tabs
US7318451B2 · kind B2 · utility
4Cited by
53References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2005 |
| Grant date | Jan 15, 2008 |
| Priority date | — |
| Expiry date | Apr 20, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7891
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A flapper valve assembly has a valve plate for attachment to a fluid device, such as a heat exchanger. The valve plate has a fluid port for permitting intermittent flow to or from a flow chamber in the fluid device. A resilient flapper covers the fluid port and has at least one transverse tab with resilient, laterally disposed tangs, so that the tabs snap into slots in the valve plate to prevent rotation of the flapper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.