Patent ID: 6579348
Filing Date: 2003-06-17
Classification: B01D,Y10S

Abstract:
A method for establishing a sealing connection between a filter mat of a tubular filter element and a metal headpiece, which metal headpiece encloses said filter element on an end thereof and in which headpiece there is an annular groove which accepts an edge of the filter mat,said annular groove defined by an outer wall and an inner wall of said headpiece, comprising compressing said outer wall inwardly from a circumference of the headpiece, so as to reduce the annular groove in size by applying said compressive force directed radially inwardly and thereby compress the filter mat located in the annular groove of the headpiece, wherein the outer wall of the annular groove adjacent to the mat is provided with a thick portion which extends outwardly beyond a portion of the headpiece away from the outer wall, and wherein said compressing is carried out by applying the compressive force for compression in the area of the thick portion to compress the thick portion of the outer wall inwardly to not extend beyond the diameter of the headpiece.