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:
Mar. 27, 2012
Filed:
Oct. 02, 2008
Eric Gillenberg, Speyer, DE;
Friedrich Kupfer, Poxau, DE;
Klaus-dieter Ruhland, Meckenheim, DE;
Oliver Steins, Römerberg, DE;
Eric Gillenberg, Speyer, DE;
Friedrich Kupfer, Poxau, DE;
Klaus-Dieter Ruhland, Meckenheim, DE;
Oliver Steins, Römerberg, DE;
Mann + Hummel GmbH, Ludwigsburg, DE;
Abstract
The invention relates to a filter element consisting of a filter medium () which is folded in a zig-zag manner and designed in a concentric shape. End plates () are arranged on the end sides of the medium. End plate () has a concentric opening as well as a first annular ring () and a second annular ring (), and a sealing groove () arranged between the rings. A reinforcement plate () is arranged in the area between the filter medium and the rings (). The end surfaces () of the rings () are supported by the grooves () of a filter element housing, the grooves running radially.