05454945 is referenced by 43 patents and cites 12 patents.

A porous coalescing filter element of conical configuration is diposed within a substantially cylindrical filter housing such tha the area between the element and the wall increases in the direction of the primary phase flow to keep the annular velocity substantially constant or decreasing in the direction of primary fluid flow. The element may be manufactured with a round end and tapered walls terminating to a pointed apex, but is more preferably manufactured and secured within the filter housing using flat end caps on both ends. The filter element may be vacuumed formed, or manufactured from media in a flat sheet form, which may be pleated if desired.

Title
Conical coalescing filter and assembly
Application Number
7/952611
Publication Number
5454945
Application Date
November 12, 1992
Publication Date
October 3, 1995
Inventor
Michael R Spearman
St. Paul
MN, US
Agent
Marshall & Melhorn
Assignee
Porous Media Corporation
MN, US
IPC
B01D 29/58
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