Patent · US Active

Filter device

US11549473B2 · kind B2 · utility

0Cited by

6References

20Claims

0Family size

Assignee

Mahle International GmbH · DE

Inventors

Andreas Kollmann · Pfalzgrafenweiler, DE
Stephan Mert · Schallendorf im Burgenland, AT
Hannes Ogris · Gablern/Lovanke, AT

Key dates

Filing date	Aug 1, 2019
Grant date	Jan 10, 2023
Priority date	—
Expiry date	Nov 28, 2039

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M37/24
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter device may include a filter housing with a filter housing pot and a cover screwable onto the filter housing pot, and an annular filter element arranged in the filter housing and having an axially protruding pin for closing a run-off channel. The annular filter element may be connected to the cover via a first thread, which may have a dome protruding centrally and axially from an upper end disc of the annular filter element. The first thread may be designed running counter to a second thread arranged between the filter housing pot and the cover.

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