Exchangeable media filter
US8366922B2 · kind B2 · utility
6Cited by
34References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 19, 2010 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | May 15, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/42
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter element for a pool or spa including a sintered plastic outer cylinder of a first diameter, a sintered plastic inner cylinder of a second diameter less than said first diameter; the inner cylinder being position coaxially with respect to the outer cylinder to define an annular interior chamber; and a selected granulated filter medium or combination of media residing in the annular interior chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.