US 12,440,789 B2
Rectangular filters, assembly and method for filtration
James Harris, Houston, TX (US); Tyler J. Johnson, Houston, TX (US); and Christopher D. Wallace, Houston, TX (US)
Assigned to FILTRATION TECHNOLOGY CORPORATION, Houston, TX (US)
Filed by FILTRATION TECHNOLOGY CORPORATION, Houston, TX (US)
Filed on Jun. 3, 2022, as Appl. No. 17/832,473.
Application 17/832,473 is a division of application No. 15/901,580, filed on Feb. 21, 2018, granted, now 11,364,458.
Claims priority of provisional application 62/462,327, filed on Feb. 22, 2017.
Prior Publication US 2022/0288519 A1, Sep. 15, 2022
Int. Cl. B01D 53/22 (2006.01); B01D 45/02 (2006.01); B01D 46/00 (2022.01); B01D 46/24 (2006.01); B01D 46/42 (2006.01); B01D 46/52 (2006.01); B01D 46/58 (2022.01); B01D 50/20 (2022.01)
CPC B01D 46/0031 (2013.01) [B01D 45/02 (2013.01); B01D 46/0008 (2013.01); B01D 46/2403 (2013.01); B01D 46/4227 (2013.01); B01D 46/521 (2013.01); B01D 46/58 (2022.01); B01D 50/20 (2022.01); B01D 2275/201 (2013.01); B01D 2275/205 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A filter element for filtration of liquid, comprising:
a) filter media in a trapezoidal shape with a first end and a second end along a longitudinal axis, and longer sides in between the first end and the second end flaring out such that the second end is wider than the first end, wherein the first end is parallel to the second end;
b) a central void created by the media pleated inside the trapezoid extending from the first end to the second end;
c) a solid generally rectangular top cap that is secured to the media on top of the pleated media that maintains a rectangular profile of the top of the filter element; and
d) a generally rectangular second end cap secured to the second end of the filter media;
wherein one of the first end cap and the second end cap is solid, and the other having a central opening that communicates with the central void in the filter media,
wherein said second end cap is a longer rectangle to accommodate the flare of the trapezoidal media, and
wherein a rectangular seal is provided on the end cap having the central opening to provide liquid-tight sealing when said filter element is mounted on a separation plate inside a filter housing.