Patent ID: 7785384
Filing Date: 2010-08-31
Classification: B01D,F01N,Y02T,Y10S

Abstract:
1. A filter assembly configured to be incorporated into an exhaust treatment device, the filter assembly comprising: a frame having a first end and a second end, the first and second ends defining a frame length therebetween; a plurality of filter media elements arranged within the frame in parallel along the frame length, each filter media element of the plurality of filter media elements being shaped as a series of pleated contours extending generally perpendicular to the frame length, the plurality of filter media elements including a first filter media element disposed proximate to the first end and a second filter media element disposed proximate to the second end; and a plurality of dividers supporting the plurality of filter media elements within the frame, the plurality of dividers including a first divider disposed adjacent to the first filter media element at the first end of the frame, a second divider disposed adjacent to the second filter media element at the second end of the frame, and at least one intermediate divider, wherein a distinct intermediate divider of the at least one intermediate dividers is disposed between each pair of adjacent filter media elements of the plurality of filter media elements along the frame length, wherein the frame includes a pair of generally rectangular opposing sidewalls extending generally parallel to one another from the first end to the second end along the frame length, the dividers of the plurality of dividers comprise generally rectangular panels extending generally perpendicular to the frame length, the pair of opposing sidewalls and the first and second dividers provide the frame with a generally rectangular cross-sectional shape, and the filter media elements of the plurality of filter media elements comprise columns of pleated filter media extending between the pair of opposing sidewalls, wherein the columns of pleated filter media are exposed on opposing sides of the rectangular cross-sectional shape of the frame to define an inlet flow side and an outlet flow side, and wherein the first divider includes a first transverse flange projecting outwardly from the first side of the frame at the outlet flow side and the second divider includes a second transverse flange projecting outwardly from the second side of the frame at the inlet flow side, the first and second flanges being configured to engage the wall of a housing of the exhaust treatment device in which the filter assembly is configured to be incorporated such that the filter assembly will align within the housing in a fixed, angled position.