Patent · US Active

Method for purifying oil and apparatus therefor

US8821734B2 · kind B2 · utility

6Cited by

7References

14Claims

0Family size

Assignee

Mahle International GmbH · DE

Inventors

Uwe Grass · Stuttgart, DE
Mike Schmid · Bingen, DE
Andreas Widmaier · Herrenberg, DE

Key dates

Filing date	Dec 4, 2008
Grant date	Sep 2, 2014
Priority date	—
Expiry date	Apr 23, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2201/52
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An oil purifying liquid filter, having an annular ring element receiving space, wherein the ring element has two axial end disks, a cover selectively fastened to a housing to close the receiving space, an inlet that is formed within the housing on a crude side, an outlet that is formed within the housing on a pure side, a first additional opening that is formed within the housing, a second additional opening that is formed within the cover, a first closure that is formed on the first end disk of the filter element in order to close the first additional opening, and a second closure that is formed on the second end disk of the filter element to selectively close the second additional opening.

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