Patent ID: 6227381
Filing Date: 2001-05-08
Classification: B01D,Y10S

Abstract:
A filter for filtering a flowing substance, tile filter comprising a casing having a cylindrical wall surrounding a central axis, said casing including an open first end and a second end opposite the first end, a substantially cylindrical, replaceable filter means fitted coaxially surrounding the central axis and positioned inside the casing, a flow to be filtered being arranged to pass through a porous cylindrical wall of the filter means, and a collar coaxially surrounding the central axis and positioned at the first end of the housing for connecting the casing to a device assembly including inlet and outlet ducts for the flow to be filtered, the filter including a support member coincident with the central axis which is distinct from the casing and extends axially from the collar, the support member being formed of an axial spindle having first and second opposite ends and being positioned within the filter means, a connection for connecting the first end of the spindle to the collar, an end flange at the second end of the spindle opposite to first end of the spindle, said end flange including a cylindrical outermost surface that is surrounded by an inner cylindrical surface of the cylindrical wall of the casing, sealing means adjacent the cylindrical outermost surface of the flange for sealing the flange to the inner cylindrical surface of the casing wall, wherein the cylindrical inner surface of the casing includes a bead extending radially inwardly toward the central axis in abutting contact with a radial surface of the end flange that faces axially toward the first end of the casing to prevent the end flange from moving axially toward the first end of the casing whereby the radial surface of the end flange will receive a force caused by an interior pressure in the casing directed axially towards the second end of the casing.