Method for forming a filter mat
US8696857B2 · kind B2 · utility
1Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 19, 2010 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Nov 19, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for forming a filter mat (1) suitable for filter fluids includes forming at least one web section (39) of a mat web (9) and at least one welding line (13, 15, 41) that seals the layers of at least one web section (39) of the mat web (9) to each other. Subsequently, at least one cut (19, 37) is carried out along the at least one welding line (13, 15, 41) such that the at least one web section (39) is cut forming at least one sealed edge region (43).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.