Interrupted, directional emboss of flat sheet
US11439943B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2017 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Aug 7, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2307/724
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Filter media having a design embossed into the media are described. In some arrangements, the filter media is pleated filter media. In other arrangements, the filter media includes a plurality of channels, such as tetrahedron channels. The filter media includes a pattern of interrupted straight or angled embossments that help maintain separation between adjacent layers of the filter media. The embossments allow for two adjacent media layers (e.g., mating surfaces of the filter media) to remain separated, thereby increasing dust holding capacity and lowering pressure drop over similarly configured filter media not having the embossments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.