Filter assembly with pleated media V-packs, and methods
US7311747B2 · kind B2 · utility
40Cited by
21References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2004 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Dec 10, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2265/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A generally cylindrical filter element incorporating nonsymmetrical or asymmetrical V-pleated media. The V-pleated media provides increased filter media per given filter volume, extended filter life, and a smaller filter for equivalent filter life. A smaller filter is generally beneficial for some applications such as aircraft, due to its lower weight. Various features of the filter include asymmetric variable pleat heights applied to a cylindrical or obround filter; defined pleat spacing applied to a variable pleat height element; optimal pleat density; and optimal shape of inlet and outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.