Filter and forming system
US7258719B2 · kind B2 · utility
95Cited by
28References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2005 |
| Grant date | Aug 21, 2007 |
| Priority date | — |
| Expiry date | Aug 23, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1016
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter includes first and second sheets of filter media, the second sheet being pleated and forming with the first sheet a plurality of axially extending flow channels having lateral cross-sectional shapes with two adjacent included angles each greater than 45° and less than 75°. Forming apparatus and methods are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.