Patent ID: 6752924
Filing Date: 2004-06-22
Classification: B01D

Abstract:
A bowl-cartridge filter arrangement configured for operable installation onto a filter head by rotation in a first direction and removal from the filter head by rotation in an opposite, second direction; the bowl-cartridge filter arrangement comprising:(a) a filter bowl having an interior surface; said filter bowl including a filter bowl interlock arrangement extending from said filter bowl interior surface; (i) said filter bowl interlock arrangement including at least a first tooth; (A) said first tooth including an end flank, a heel, and a toe; said toe including at least one bevel surface; said bevel surface extending at least partially from said toe to said heel and being angled obliquely relative to said end flank; (b) a disposable cartridge filter operably mounted in and selectively removable from the bowl; the filter cartridge comprising: (i) an extension of filter media; said extension having a first end and an opposite second end; (ii) a first end cap secured to said extension of filter media at said first end; and (iii) a second end cap secured to said extension of filter media at said second end; said second end cap including an outer surface, and a filter cartridge interlock arrangement extending from said outer surface; (A) said filter cartridge interlock arrangement engaging said first tooth of said filter bowl interlock arrangement, when the bowl-cartridge filter is rotated in the second direction to remove the bowl-cartridge filter from the filter head.