US 11,938,438 B2
Method and device for filtering contaminated air
Stephan Rickerts, Grossenaspe (DE); Ernst Claussen, Steinfeld (DE); Hauke Petersen, Oering (DE); Frank Knödler, Brügge (DE); and Sonja Dittscher, Trappenkamp (DE)
Assigned to Oerlikon Textile GmbH & Co. KG, Remscheid (DE)
Appl. No. 17/282,151
Filed by Oerlikon Textile GmbH & Co. KG, Remscheid (DE)
PCT Filed Oct. 8, 2019, PCT No. PCT/EP2019/077165
§ 371(c)(1), (2) Date Apr. 1, 2021,
PCT Pub. No. WO2020/074479, PCT Pub. Date Apr. 16, 2020.
Claims priority of application No. 10 2018 008 122.3 (DE), filed on Oct. 13, 2018.
Prior Publication US 2021/0354068 A1, Nov. 18, 2021
Int. Cl. B01D 46/00 (2022.01); B01D 46/64 (2022.01); B01D 46/88 (2022.01)
CPC B01D 46/88 (2022.01) [B01D 46/0005 (2013.01); B01D 46/64 (2022.01); B01D 2258/06 (2013.01); B01D 2273/28 (2013.01); B01D 2273/30 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for filtering contaminated air, in which air is suctioned through at least one filter element, and in which the at least one filter element is held so as to be replaceable in a filter receptacle installation of an air duct system, wherein a plurality of filter elements is held in the filter receptacle installation in such a manner that an automatic replacement of a contaminated filter element of the at least one filter element in the air duct system takes place when one of the filter elements is retrieved, and wherein the filter elements of the plurality of filter elements are held in filter chambers that are disposed on top of one another and, when replacing the contaminated filter element, are connected to one another so as to form a gravity chute.