Patent · US Active

Filter device and method for the periodic cleaning of a filter

US7918348B2 · kind B2 · utility

1Cited by

9References

9Claims

0Family size

Assignee

UTISOL TECHNOLOGIES AG · CH

Inventors

Eberhard Harms · Mupperg, DE
Mark Grigo · Sonneberg, DE

Key dates

Filing date	Apr 23, 2004
Grant date	Apr 5, 2011
Priority date	—
Expiry date	Dec 12, 2027

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D33/50
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In a filter device and in a method for the periodic cleaning of a filter of a water treatment or sewage treatment plant, a rotating filter is arranged within its own separate filter chamber, the bottom of which is designed as following a contour of the rotating filter. The provision of an own separate filter chamber makes it possible for the rotating filter to be cleaned, without other parts of a filtering installation having to be taken out of operation, and without the rotating filter having to be dismantled and removed from the filter chamber. Therefore no lifting cranes or separate cleaning basins are necessary.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.