Patent ID: 6086763
Filing Date: 2000-07-11
Classification: B01D,Y10S

Abstract:
A combination disc and sealing ring for a filter assembly, the combination comprising:an annular thermoplastic disc comprising a central aperture, the disc comprising an upper side and a flat lower side,the upper side of the disc comprising an annular thickened area that extends upward from the upper side of the disc and that is spaced radially outward from the aperture of the disc, the annular thickened area being thermally welded to a sealing ring,the sealing ring having a height, the annular thickened area of the disc having a height, the height of the annular thickened area being at least one third the height of the sealing ring,the sealing ring comprising a central aperture having a common axis with the central aperture of the disc, the sealing ring further comprising a compressible area radially disposed between the aperture of the sealing ring and the thickened area of the disc.