Water filter
US9861083B2 · kind B2 · utility
1Cited by
10References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 24, 2011 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Apr 26, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Water filters which comprise a multitude of discrete filter media elements in a chamber require periodic cleaning. However, the elements tend to become adhered to one another and to the interior surface of the chamber. The invention provides a water filter for use with ponds, comprising a filter chamber for containing filter media, and a first movable cutting member provided substantially immediately adjacent the interior wall of the chamber for movement across the surface of the interior surface of the wall to break the adherence of filter media to the interior wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.