Patent · US Active

Filter element and filter system

US8287612B2 · kind B2 · utility

41Cited by

25References

18Claims

0Family size

Assignee

MANN+HUMMEL GmbH · DE

Inventors

Eric Gillenberg · Speyer, DE
Friedrich Kupfer · Marklkofen, DE
Klaus-Dieter Ruhland · Meckenheim, DE
Oliver Steins · Waldsee, DE

Key dates

Filing date	Mar 25, 2012
Grant date	Oct 16, 2012
Priority date	—
Expiry date	Mar 25, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2271/022
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter element has of a filter medium (10) folded in a zig-zag manner and designed in a tubular shape. End plates (11, 12) are arranged on the filter medium end faces. End plate (12) has a concentric opening as well as a first annular ring (14) and a second annular ring (15), and a sealing groove (16) arranged between the rings. A reinforcement plate (17) is arranged at the end plate and has an annular surface (23) extending in axial direction across folds of the filter element.

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