US 11,731,070 B2
Filter device
Rainer Matho, Berlin (DE); Andreas Mueller, Zehdenick (DE); Stephan Rickerts, Grossenaspe (DE); Ernst Claussen, Steinfeld (DE); Hauke Petersen, Oering (DE); Frank Knoedler, Bruegge (DE); and Sonja Dittscher, Trappenkamp (DE)
Assigned to Oerlikon Textile GmbH & Co KG, Remscheid (DE)
Filed by Lufttechnik Gransee GmbH, Gransee (DE); and Oerlikon Textile GmbH & Co KG, Remscheid (DE)
Filed on Apr. 8, 2021, as Appl. No. 17/225,258.
Claims priority of application No. 10 2020 110 081.7 (DE), filed on Apr. 9, 2020.
Prior Publication US 2021/0316244 A1, Oct. 14, 2021
Int. Cl. B01D 46/42 (2006.01); B01D 46/00 (2022.01); B01D 46/62 (2022.01); B01D 46/88 (2022.01); B01D 46/90 (2022.01)
CPC B01D 46/4227 (2013.01) [B01D 46/0004 (2013.01); B01D 46/0005 (2013.01); B01D 46/62 (2022.01); B01D 46/88 (2022.01); B01D 46/90 (2022.01)] 12 Claims
OG exemplary drawing
 
1. A filter device for filtering particles from an air stream, comprising:
an inlet channel through which air to be purified flows,
a flow channel connected to the inlet channel,
at least one filter element through which a flow can pass and which is held replaceably in the flow channel,
an outlet channel through which the purified air flows,
an insertion chamber having a door configured for closing the insertion chamber and from which insertion chamber the at least one filter element can be fed to the flow channel, and
an output chamber having a closure element that is configured for closing the output chamber, wherein the at least one filter element can be fed to the output chamber from the flow channel, wherein the closure element is locked in a closed position via a locking mechanism when the door on the insertion chamber is open and the output chamber and the insertion chamber are connected to a same flow channel.