Pleated filter element and process for making the same

Filter insert consists of a folded pack (2) made of thermoplastic deformed and welded material, especially a fleece material. The folds are held at a defined distance apart. Individual folding points (10) are placed in the longitudinal direction (4) if the folded pack across the folds (3) in at leas...

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Bibliographische Detailangaben
Hauptverfasser:	HINTENLANG, DIETER, BORRIS, RICHARD
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION ENGINES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	Filter insert consists of a folded pack (2) made of thermoplastic deformed and welded material, especially a fleece material. The folds are held at a defined distance apart. Individual folding points (10) are placed in the longitudinal direction (4) if the folded pack across the folds (3) in at least one strip (5, 6, 7) on one or both sides of the pack and are connected with the subsequent fold in the overlapping region. An Independent claim is also included for a process for producing the filter insert comprising placing the folded pack made of thermoplastic deformed and welded material, especially a fleece material on a comb-like holder having teeth, and welding the folding points, in which the teeth edges act as counter bearing for the welding process.