Patent · US Active

Filter device

US11285409B2 · kind B2 · utility

0Cited by

7References

20Claims

0Family size

Assignee

Mahle International GmbH · DE

Inventors

Heiko Hensinger · Stuttgart, DE
Matthias Lindenberg · Stuttgart, DE
Uli Haeussermann · Fellbach, DE

Key dates

Filing date	Dec 12, 2019
Grant date	Mar 29, 2022
Priority date	—
Expiry date	Jun 15, 2040

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2201/4053
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter device may include a filter housing, a ring filter element arranged within the filter housing, a tubular dome engaging in an interior of the ring filter element, and a valve arranged in a clean channel. The ring filter element may include a lower end disc and a pin. The ring filter element may engage a first channel via the pin. The tubular dome may have a guiding contour which may interact with a guiding element of the ring filter element. The guiding contour may include an axial groove. The pin may be introducible into the first channel when the guiding element enters the axial groove. The guiding element and the valve may be structured and arranged such that the guiding element interacts with a valve body of the valve and transfers the valve body into an opening position when the guiding element is slid into the axial groove.

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