US 12,473,216 B2
Household appliance with coagulant dosing system
Mohsin Mahamadshafi Attar, Maharashtra (IN); Jalindar S. Dawange, Maharashtra (IN); Richard L. Hammond, Mattawan, MI (US); Christopher A. Hartnett, St. Joseph, MI (US); Peter N. Howes, Chicago, IL (US); and Eric Monville, St. Joseph, MI (US)
Assigned to Whirlpool Corporation, Benton Harbor, MI (US)
Filed by WHIRLPOOL CORPORATION, Benton Harbor, MI (US)
Filed on Aug. 14, 2024, as Appl. No. 18/805,079.
Application 18/805,079 is a continuation of application No. 18/202,011, filed on May 25, 2023, granted, now 12,065,366.
Application 18/202,011 is a continuation of application No. 16/953,739, filed on Nov. 20, 2020, granted, now 11,691,899, issued on Jul. 4, 2023.
Claims priority of provisional application 62/952,633, filed on Dec. 23, 2019.
Prior Publication US 2024/0400423 A1, Dec. 5, 2024
Int. Cl. D06F 39/20 (2024.01); C02F 1/52 (2023.01); D06F 39/02 (2006.01); D06F 39/08 (2006.01); C02F 1/00 (2023.01); C02F 103/00 (2006.01)
CPC C02F 1/5281 (2013.01) [C02F 1/52 (2013.01); D06F 39/028 (2013.01); D06F 39/083 (2013.01); D06F 39/088 (2013.01); D06F 39/20 (2024.01); C02F 2001/007 (2013.01); C02F 2103/002 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A household appliance configured to perform a cycle of operation, using water, on an article, the household appliance comprising:
a treatment chamber configured to receive the article for treatment according to the cycle of operation;
a treating chemistry dispenser coupled to the treatment chamber; and
a water treatment system comprising:
a sediment tank fluidly coupled to the treatment chamber and having a sediment outlet and a clarified water outlet, which is located above the sediment outlet and fluidly coupled to the treatment chamber;
an impermeable separation layer extending substantially across the sediment tank and moveable within the sediment tank to separate any sediment from any clarified water;
a coagulant dosing system fluidly coupled to the sediment tank; and
a fresh water supply fluidly coupled to at least one of the treatment chamber or the sediment tank;
wherein fresh water supplied by the fresh water supply is used during the performance of the cycle of operation and then directed as used water to the sediment tank, where coagulant from the coagulant dosing system is supplied to the used water to increase the sediment in the sediment tank, which settles in the tank forming a layer of sediment, which can be removed via the sediment outlet, and a layer of clarified water, above the sediment, which can be removed by the clarified water outlet and reused.