Patent ID: 6289081
Filing Date: 2001-09-11
Classification: G21K

Abstract:
A method of manufacturing a filter which is provided with a number of ducts, wherein:a number of deformable foils is provided, on electrically insulating outer sides, with electrically conductive bands which are separated from one another by electrically insulating bands,the electrically conductive bands on a first outer side of the foil are arranged so as to be offset relative to the electrically conductive bands on the second outer side of the foil;the foils are stacked;oppositely situated electrically insulating bands of the oppositely situated foils are interconnected;the foils are ultimately moved away from one another in a direction transversely of the foils in order to form the ducts between the interconnected foils, characterized in that in a prolongation of at least one electrically conductive band there is provided at least one detached, electrically insulating section which is not connected to an oppositely situated foil.