US 12,458,914 B2
Modular filtration platform
Lori Foix, Inver Grove Heights, MN (US); Michael J. Sherman, Woodbury, MN (US); Steve Wilson, Pine City, MN (US); James B. Larson, Stillwater, MN (US); Erik Klimpel, Woodbury, MN (US); Richard A. Kirchner, Apple Valley, MN (US); Chad Tousley, River Falls, WI (US); Steven J. Haehn, Oakdale, MN (US); and Jeff Ehlers, Woodbury, MN (US)
Assigned to Ecowater Systems LLC, Woodbury, MN (US)
Filed by ECOWATER SYSTEMS LLC, Woodbury, MN (US)
Filed on Oct. 23, 2023, as Appl. No. 18/492,430.
Application 17/350,342 is a division of application No. 16/428,222, filed on May 31, 2019, granted, now 11,077,392, issued on Aug. 3, 2021.
Application 18/492,430 is a continuation of application No. 17/350,342, filed on Jun. 17, 2021, granted, now 11,826,683.
Application 16/428,222 is a continuation of application No. 15/427,657, filed on Feb. 8, 2017, granted, now 10,421,032, issued on Sep. 24, 2019.
Claims priority of provisional application 62/306,870, filed on Mar. 11, 2016.
Prior Publication US 2024/0042355 A1, Feb. 8, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 35/30 (2006.01); B01D 61/08 (2006.01); C02F 1/00 (2023.01); C02F 1/28 (2023.01); C02F 1/44 (2023.01); C02F 9/20 (2023.01)
CPC B01D 35/301 (2013.01) [B01D 61/08 (2013.01); C02F 9/20 (2023.01); B01D 2201/302 (2013.01); B01D 2201/4015 (2013.01); B01D 2201/4023 (2013.01); B01D 2201/4076 (2013.01); B01D 2201/4092 (2013.01); B01D 2201/56 (2013.01); B01D 2313/02 (2013.01); B01D 2313/06 (2013.01); B01D 2313/13 (2013.01); B01D 2313/21 (2013.01); B01D 2313/44 (2013.01); C02F 1/001 (2013.01); C02F 1/283 (2013.01); C02F 1/441 (2013.01); C02F 2201/004 (2013.01); C02F 2201/006 (2013.01); C02F 2201/007 (2013.01); C02F 2209/008 (2013.01); C02F 2209/03 (2013.01); C02F 2209/05 (2013.01); C02F 2209/40 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A filtration system comprising: a modular filter assembly having a manifold head and a filter cartridge assembly;
said filter cartridge assembly including a filter housing sealingly containing a filter media, said filter housing including an annular collar fixedly attached to said filter housing, or integral therewith, for mating to said manifold head, said annular collar having a top surface, internal threads facing radially inwards, and at least one aperture or recessed indent facing radially outwards, and having a rotation coinciding with said filter housing, and said at least one aperture or recessed indent adapted to receive a protrusion or lead-in tab for securing said filter cartridge assembly from further rotation when secured in said manifold head; and
said manifold head having a receiving portion with external threads for threadingly receiving said filter housing annular collar internal threads, a top portion fluid access port capable of releasably joining to an adjacent manifold head top portion fluid access port by a manifold union or conduit, which allows said fluid access ports to link in fluid communication to one another.