Patent · US Expired

Cylindrical filter element

US6994768B2 · kind B2 · utility

0Cited by

3References

3Claims

0Family size

Assignee

Filterwerk Mann & Hummel GmbH · DE

Inventors

Guenter Jokschas · Murrhardt, DE
Helmut Luka · Erbach, DE
Norbert Strassenberger · Adlkofen, DE
Gerhard Vilsmaier · Unterdietfurt, DE
Matthaeus Huber · Dingolfing, DE

Key dates

Filing date	May 21, 2002
Grant date	Feb 7, 2006
Priority date	—
Expiry date	Jun 23, 2023

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2201/34
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A cylindrical filter element which comprises a folded filter medium, in particular having a pleated configuration, which is annularly secured to a hollow cylinder, two expanded film axial end plates, and a support tube which is integrated into the cylindrical filter element and upon which the folded filter medium may be affixed. The support tube has an annular components adjacent respective axial end plates which has an interlocking fit with the film end plates and which may be connected to a sealing element.

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