Interlockable bead seal
US8227145B2 · kind B2 · utility
3Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2008 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | May 25, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An interlockable bead seal for a bipolar plate is provided. The interlockable bead seal includes a first elongate bead formed on a first plate and a second elongate bead formed on a second plate. The first elongate bead has a sealing surface and the second elongate bead has a trough. An interlockable bipolar plate having the interlockable bead seals, and a fuel cell stack formed from a plurality of the interlockable bipolar plates, are also provided. A lateral slippage between components of the fuel cell stack is militated against by the interlockable bipolar plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.