Patent ID: 9687762
Date: 2017-06-27
CPC Classifications: B01D,C02F,F16K,Y10T

Claim:
1. A filter cartridge comprising: a sump; an inlet/outlet portion extending from one end of the sump having an outside diameter that is smaller than an outside diameter of the sump, the inlet/outlet portion having a cartridge inlet port and a cartridge outlet port; a first lug on the inlet/outlet portion protruding outwardly from a surface of the inlet/outlet portion in a radial direction perpendicular to a central axis of the filter cartridge; a shoulder surface that is formed by the intersection of the sump and the inlet/outlet portion; a filter disposed within the sump; and the first lug comprising a curved surface facing the shoulder surface and curving away from the shoulder surface such that a distance between the curved surface and the shoulder surface varies and wherein a minimum distance between the curved surface and the shoulder surface is located in a plane intersecting with the central axis and bisecting the first lug into two halves.