Patent ID: 6308836
Filing Date: 2001-10-30
Classification: B01D

Abstract:
A filter assembly comprising:means forming an annular tank having an open end defining an opening,means for forming an annular replaceable filtering material insertable in said tank,a circular flange connected to one end of said filtering material means, said flange having an outer diameter sufficiently large to extend outward beyond said opening of the annular tank at the open end thereof,a peripheral seal element extending around the outer diameter of said flange,means for connecting said seal element to said flange so that said seal element is retained in place around the periphery of said flange when said filtering material and flange are out of said annular tank,a closure element releasably securable over the open end of said tank means for sandwiching said flange between said closure element and a portion of said tank extending radially outwardly beyond said opening, and said peripheral seal element having an axial thickness sufficiently great so that the peripheral seal element is compressed when said flange is sandwiched between said closure member and said portion of the annular tank, andstop means for positively limiting the compression of said peripheral seal element thereby maintaining an effective seal.