Patent ID: 11938438
Assignee: OERLIKON TEXTILE GMBH & CO. KG
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 0:
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.