The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2012
Filed:
Jan. 26, 2005
Carsten Dierkes, Munster, DE;
Carsten Dierkes, Munster, DE;
Royal Environmental Systems, Inc., Stacy, MN (US);
Abstract
The invention relates to a filter element consisting of a molded body of porous concrete, which element is arranged in the water stream of a purification system. In particular, the filter element () is a molded pervious concrete layer arranged as a partition between a lower compartment () and an upper compartment () of a treatment chamber (), wherein the water inlet () opens into the lower compartment () and a water outlet () issues from the upper compartment (). The pervious concrete filter layer may contain one or more additives to enhance adsorption of pollutants, such as heavy metal ions, phosphorous, hydrocarbons or other target soluble pollutants.