Patent ID: 6440303
Filing Date: 2002-08-27
Classification: B01D,Y10T

Abstract:
A substantially clog-resistant self-supporting fluid filter, for attachment to one end of a tube having an inner diameter and open at both ends, said filter comprising:a substantially cylindrical-shaped grid open at both ends comprising a first plurality of substantially parallel ribs crossed by and fastened to a second plurality of substantially parallel ribs at an angle to said first plurality of ribs forming a plurality of apertures between each adjacent pair of parallel ribs; wherein said apertures provide passage for liquids through said filter and said ribs provide obstacles for preventing passage of substantially solid matter and debris intermixed with said liquid further comprising a snap-on cap cover element for closing one end of said filter, said cover element having a substantially circular-shaped base having a side opening, a top surface and a bottom surface; a flange attached to the top surface of said base having a pawl for engaging an opening in said filter thereby attaching said cover element to said filter; and a raised radial spacer located on the top surface of said base for engaging an open end of a tube slidably inserted into a remaining open end in said filter, thereby preventing the open end of the tube from bottoming out and engaging the top surface of said base that would prevent the flow of liquid into said tube.