Patent ID: 11883767
Assignee: CUMMINS FILTRATION IP, INC.
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 15:
16. A filter housing assembly, comprising:
a filter housing; and
a drain port operatively connected to the filter housing, the drain port comprising an inner surface that defines an aperture extending through the drain port,
the drain port including an upper portion comprising at least one surface modification that protrudes axially to define a top portion, the drain port alignable and sealingly connectable with a filter element extension of a filter element including, a top and a bottom endplate positioned on opposite ends of a filter media, the filter element extension being directly connected to one of the top endplate, the bottom endplate, or the filter media,
the inner surface of the drain port being sealable to a seal member of the filter element extension within the aperture when the drain port and the filter element extension are aligned such that the at least one surface modification of the drain port does not abut the seal member of the filter element extension, thereby creating a sealed connection between the drain port and the filter element extension wherein the at least one surface modification comprises at least one of a notch, protrusion, groove, cut, and surface roughness.