Abstract: A filter element for the filtration of the incoming cabin air of vehicles is disclosed. The filter element can be readily regenerated and reused in a dust-loaded environment. The filer element includes a main body formed from at least one filter medium. The main body has an inflow side and an outflow side. The filter element is used as a regenerable filter element for the filtration of the incoming cabin air in a vehicle which is subjected to elevated dust loading. A coating of nanofibres and/or a diaphragm is arranged on the inflow side of the main body.

Abstract: The invention relates to a cartridge filter for purifying gases, said filter being especially embodied as a filter for fine or suspended matter. The inventive filter comprises a frame into which at least one folded package which consists of a filter material through which gas flows is introduced. The end pieces of the strips of frames are interconnected by corner connectors. said frame strips (1) consists of at least two individual elements (2,3) which are oriented perpendicularly to the direction of flow, engage with each other in a positively locking manner, and/ or can be interconnected.

Abstract: A filter system includes several filters, particularly a main filter and at least one prefilter, which are disposed one after another and are made of a filter material that is encompassed by frames. The sides of the frame of the main filter and the frame/s of the prefilter/s, which face each other, include connecting elements. The individual filters can be coupled to each other in a form-fitting manner.

Abstract: A cassette filter comprising a frame and a pleated filter material that is inserted therein, in addition to a protective grid having passage holes. The protective grid is fastened at a distance from the filter material in the frame and has a flow resistance that is smaller than that of the pleated filter material. The protective grid includes at least one film strip that is bent around the passage holes, said film strip extending parallel relative to the direction of flow of the medium to be filtered, and in that the protective grid recurrently contacts at least one other identically bent film strip outside the passage holes in contact points and is glued to said other film strip in the contact points.

Abstract: A cartridge filter includes a folded package including filter material and a frame holding the folded package. The frame includes a plurality of profiled strips having identical profiles, and each having two ends. The frame also includes a plurality of corner joints, each disposed at an end of a respective profiled strip. Each corner joint includes an end cap for engaging pair wise with an end cap of an adjacent one of the plurality of corner pieces.

Abstract: A cartridge filter for purifying gases, said filter being especially embodied as a filter for fine or suspended matter. The filter includes a frame into which at least one folded package which includes a filter material through which gas flows is introduced. The end pieces of the strips of frame are interconnected by corner connectors. Said frame strips include at least two individual elements which are oriented perpendicularly to the direction of flow, engage with each other in a positively locking manner, and/or can be interconnected.

Abstract: A filter system includes several filters, particularly a main filter and at least one prefilter, which are disposed one after another and are made of a filter material that is encompassed by frames. The sides of the frame of the main filter and the frame/s of the prefilter/s, which face each other, include connecting elements. The individual filters can be coupled to each other in a form-fitting manner.

Abstract: A cassette filter comprising a frame and a pleated filter material that is inserted therein, in addition to a protective grid having passage holes. The protective grid is fastened at a distance from the filter material in the frame and has a flow resistance that is smaller than that of the pleated filter material. The protective grid includes at least one film strip that is bent around the passage holes, said film strip extending parallel relative to the direction of flow of the medium to be filtered, and in that the protective grid recurrently contacts at least one other identically bent film strip outside the passage holes in contact points and is glued to said other film strip in the contact points.

Abstract: The invention relates to a cassette filter, especially a filter for fine or suspended matter from a folded package of filter material fitted in a frame. Said frame comprises profiled strips (1) of identical design and corner connectors (6, 7) that retain the end pieces (20, 21) of the profiled strips (1). The corner connectors (6, 7) are provided with end caps (12, 13) that can be superimposed pair-wise at a right angle.