Patent ID: 8444735
Filing Date: 2013-05-21
Classification: B01D,Y10T

Abstract:
1. A filter element comprising: a tubular extension of filter media defining an open filter interior; a first end cap secured to the tubular extension of filter media; the first end cap defining an opening in communication with the open filter interior; a second end cap secured to the tubular extension of filter media opposite of the first end cap; the second end cap being a closed end cap with no openings therethrough; the filter element comprising: (i) the second end cap includes an outer wall circumscribing the tubular extension of filter media; the outer wall being polygon-shaped and defining a plurality of apices; and (ii) the second end cap includes an axial portion having a central region with a closed recess projecting into the open filter interior and a projection extending axially from said central region.