Textured separator plate and method of making
US6311815A · kind A · utility
8Cited by
15References
97Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2000 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Feb 9, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4998
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention comprises a textured separator plate having specific desirable surface characteristics and method of manufacture of said plate. The separator plate in one embodiment is fashioned from steel which is textured by cold working, for example, by a laser-matte rolling process. Preferably, the surface texture is a repeatable bi-dimensional pattern exhibiting a surface profile which is plateau-like in appearance, the texture comprising a regular pattern of curvilinear recesses defining island-like features.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.