Submerged membrane cartridge
US6287467A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2000 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Apr 6, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/444
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Provided is a submerged membrane cartridge which comprises a supporting plate made of a resin, and a membrane disposed so as to cover the surface of the supporting plate, and is characterized in that the membrane is fused in a plurality of welding allowances formed in multiple, along the entire periphery of the supporting plate; an inner fixing portion that retains the membrane under tension is formed by an inner welding allowance; a water sealing portion that ensures a sealing function through the entire periphery of the membrane is formed by a central welding allowance; and an outer fixing portion that fixes the periphery of the membrane to the supporting plate is formed by an outer welding allowance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.