Patent · US Expired

Filter element with a drainage tube

US7097683B2 · kind B2 · utility

5Cited by

3References

7Claims

0Family size

Assignee

MANN+HUMMEL GmbH · DE

Inventors

Otto Eppel · Speyer, DE
Wolfgang Heikamp · Waldsee, DE
Markus Zuerker · Dudenhofen, DE

Key dates

Filing date	Dec 29, 2003
Grant date	Aug 29, 2006
Priority date	—
Expiry date	Apr 12, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S55/17
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter element (15), especially suitable for separating entrained oil from an air stream, having a drainage device (23) including a drainage tube (22) which is connected to an upper end disk (16) of the filter element (15) by a connector (24) which may include preferably releasable clip hooks (25). The resulting filter element with a drainage device is easy and economical to manufacture, and may have a modular construction in which the connector (24) and the drainage tube (22) are separate components so that the length of the drainage tube can be optimally matched to various filter dimensions.

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