Pleated aligned web filter
US7622063B2 · kind B2 · utility
24Cited by
50References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2006 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | Aug 8, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/643
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter element in the form of a nonwoven self-supporting filtration web having rows of folded or corrugated spaced-apart pleats, the web containing continuous thermoplastic fibers a majority of which are aligned at 90°±20° with respect to the row direction. The filter element can be made by forming rows of pleats in such a nonwoven web and cutting the web to a desired size and shape. The filter elements can provide improved mechanical and filtration properties and can exhibit reduced susceptibility to pleat deformation and the loss of space between pleats.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.