US 2022/0176296 A1 · FOLDABLE FILTER ARRANGEMENT CONSISTING OF A PLURALITY OF INDIVIDUAL FILTER ELEMENTS

Abstract

The invention relates to a filter arrangement for cleaning an air stream having at least three filter elements, wherein each filter element has a bellows made of pleated filter medium, wherein the filter elements are arranged in series and any two adjacent filter elements are connected to one another by means of a connecting tab. According to the invention, a fold run-out of all end folds of all bellows is oriented in a particular direction, the connecting tabs are of two different embodiments and the different embodiments of the connecting tabs are arranged alternatingly when viewed in a longitudinal direction of the filter arrangement. Not only is a simple installation of the filter elements in a filter holder thus facilitated but also a defined seating of the filter elements in the filter holder is ensured.

Claims9

Dependent claims

A filter arrangement for cleaning an air stream, the filter arrangement comprising at least three filter elements, wherein each filter element of the at least three filter elements includes a bellows made of pleated filter medium, wherein:

the at least three filter elements are arranged in series,
a fold run-out of all end folds of the bellows is oriented in a particular direction, and
connecting tabs connecting any two adjacent filter elements are of two different embodiments and the different embodiments of the connecting tabs are arranged alternatingly when viewed in a longitudinal direction of the filter arrangement.

Dependencies are inferred from the claim text.

Facts

Application

17/546,078Filed 9 Dec 2021

Priority

EP 20 212 692.69 Dec 2020

Published

9 Jun 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

B01D 46/12
Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces: in multiple arrangements
B01D 46/521
Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material: using folded, pleated material
B01D 46/0008
Mounting of filtering elements within casings, housings or frames: two or more filter elements not fluidly connected positioned in the same housing
B01D 46/0016
Casings; Housings; Frame constructions: folded frame or housing constructions

Foldable filter arrangement consisting of a plurality of individual filter elements

Life of this patent

Foldable filter arrangement consisting of a plurality of individual filter elements

Life of this patent

Abstract

Claims9