US Patent 7578397 Device for the treatment of fluids

Patent 7578397 was granted and assigned to Grundfos on August, 2009 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Grundfos

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7578397

Date of Patent

August 25, 2009

Patent Application Number

11571963

Date Filed

June 29, 2005

Patent Primary Examiner

‌

Fred Prince

Patent abstract

A device is provided for fluid treatment, in particular for waste water treatment. The fluid is led along a surface (3) coated with biological material. A wiper element (5) is provided, which brushes the surface (3) not as a whole, but in paths. The path course is selected such that the coated surface (3) is successively brushed in sections.