Form and fill subgasket
US8609298B2 · kind B2 · utility
4Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2011 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Dec 2, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for manufacturing a subgasket for a fuel cell stack having a pair of plates disposed in a stack includes the step of positioning a membrane between the plates. The membrane includes an inboard portion and a tortuous form portion. The inboard portion abuts a proton exchange membrane of the fuel cell, and the tortuous form portion abuts each of the plates. The tortuous form portion defines at least one cavity between one of the plates and the membrane. A viscous sealant is injected into the cavity. The sealant is cured to form a compliant bead seal on the membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.