Fluoroplastic support membrane
US12420226B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2020 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Feb 3, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/0415
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Support membranes for filters are described that include a support sheet formed of a polymeric material and a continuous base section having opposed outer surfaces and spaced-apart ribs extending outwardly from at least one of the opposed outer surfaces. The spaced-apart ribs define continuous flow channels bound by the adjacent spaced-apart ribs. The ratio of the height of the ribs to the height of the continuous base ranges from about 2:1 to about 5:1. This relatively high aspect ratio of the ribs and the base layer increases the performance of the filter and reduces the cross-flow pressure drop of fluids filtered through the membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.