Filter cartridge retaining assembly
US5891334A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1997 |
| Grant date | Apr 6, 1999 |
| Priority date | — |
| Expiry date | Jun 19, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D65/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A retaining ring assembly for a reverse osmosis filter cartridge includes a removable retaining ring inserted into the cartridge housing after insertion of the cartridge, the retaining ring including a demountable locking connection with the housing. When the housing is subsequently removed to replace the cartridge, the retaining ring forces the cartridge from its tightly sealed connection to the end cap or header, allowing the cartridge to be easily removed with the housing. Preferably, the housing includes a special brine ring adapted to cooperate with a conventional cartridge brine seal, the brine ring providing connection for the retaining ring and defining with the housing a brine flow passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.