Patent · US Active

Plate-shaped filter insert

US7896942B2 · kind B2 · utility

1Cited by

7References

7Claims

0Family size

Assignee

Mahle International GmbH · DE

Inventors

Hans Gebert · Sankt Augustin, DE
Hans Waibel · Waiblingen, DE

Key dates

Filing date	Dec 13, 2006
Grant date	Mar 1, 2011
Priority date	—
Expiry date	Aug 30, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S55/31
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A plate-shaped filter insert for, in particular, a gas filter with a seal which projects outward on a first of two opposite plate surfaces should be simple and inexpensive to produce with good durability. For this purpose, such a filter insert has the following features: —the filter material (1) is designed as a web material folded in a zigzag shape, each of whose folds on the top side are sealed by a first sealant strip (2), —the first sealant strips (2) each project bent outward at one of the two opposite upper plate sides formed by the backs of the folds, —at the end folds lying in longitudinal direction of the web material, a second sealant strip (3) running transverse to this longitudinal direction is attached, —the second sealant strips (3) are each bonded tightly to the first sealant strips (2), —a circumferential sealant material (4) is applied to the first and second sealant strips (2, 3) bonded tightly to one another.

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