Patent ID: 6299662
Filing Date: 2001-10-09
Classification: B01D

Abstract:
Filter cartridge (1) for insertion in a cartridge opening (20) in a plate (2), and where the filter cartridge comprises a predominantly cylindrical filter (3) and an outer annular collar (4) made of an elastomer or rubber, and which fastens against the predominantly cylindrical filter, and where the tubular collar (4) has a flange (5) which in inserted position lies up against a first side of the plate (2) down in the cartridge opening, and where the filter cartridge (1) further comprises an expansion part (10, 10') which is configured to be inserted in the outer, annular collar (4), in that the outer side (6) of the collar below the flange has a diameter which, in an uninfluenced state, does not substantially exceed the diameter of the cartridge opening (20), and in that the expansion part (10, 10') is arranged to be inserted in the axial direction in the collar (4) from a side of the filter cartridge where the flange (5) is disposed, and thatthe expansion part (10, 10') is made of a material which is relatively stiff in comparison with the collar (4), and comprises a first ridge (13) which on the expansion part (10, 10') is placed opposite a second side of the plate which faces away from the flange (5), when the expansion part (10) is inserted in the collar (4), whereby the ridge (13) forms a projection on a substantially straight part (7) of the collar below the flange (5) for the fastening in and sealing of the collar (4) to the cartridge opening (20), comprising:the expansion part (10') further comprises a second ridge (15) which, when the expansion part (10') is inserted in the collar (4), lies opposite the first side of the plate (2) in which the cartridge opening (20) is provided, or slightly above this side in a position which lies on a level with the flange (5).