Patent · US Active

Filter element

US10786773B2 · kind B2 · utility

0Cited by

0References

9Claims

0Family size

Assignee

Carl Freudenberg KG · DE

Inventors

Regina Brack · Mannheim, DE
Uwe Haefner · Kehl, DE
Alexander Oelsner · Mannheim, DE

Key dates

Filing date	Nov 21, 2017
Grant date	Sep 29, 2020
Priority date	—
Expiry date	May 22, 2038

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2279/40
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In an embodiment, the present invention provides a filter element including: a bellows in the shape of a zig-zag having pleat walls and a pleat ridge, edges of the pleat walls and the pleat ridge being provided with edge elements; and a frame element being assigned to at least one end pleat of the bellows. The frame element surrounds the end pleat so as to form a positive fit on both sides, the frame element being fixed to the edge elements.

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