US 11,655,903 B2
Control valve assembly for fluid treatment apparatus
Adam Sloma, Arlington Heights, IL (US); Doug Anderson, St. Charles, IL (US); Harkirat Sahni, Huntley, IL (US); and Lonnie Webb, Waterford, WI (US)
Filed by Culligan International Company, Rosemont, IL (US)
Filed on Aug. 21, 2020, as Appl. No. 16/999,457.
Application 16/999,457 is a continuation of application No. 15/905,038, filed on Feb. 26, 2018, granted, now 10,767,770.
Claims priority of provisional application 62/464,962, filed on Feb. 28, 2017.
Prior Publication US 2020/0386329 A1, Dec. 10, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. F16K 11/07 (2006.01); C02F 1/42 (2023.01); F16K 31/524 (2006.01); F16K 37/00 (2006.01); F16K 31/53 (2006.01); F16K 31/04 (2006.01); C02F 1/00 (2023.01)
CPC F16K 11/07 (2013.01) [C02F 1/008 (2013.01); C02F 1/42 (2013.01); F16K 31/04 (2013.01); F16K 31/524 (2013.01); F16K 31/52475 (2013.01); F16K 31/52483 (2013.01); F16K 31/53 (2013.01); F16K 37/0041 (2013.01); C02F 2201/005 (2013.01); C02F 2209/40 (2013.01)] 6 Claims
OG exemplary drawing
1. A control valve assembly for a fluid treatment system comprising:
a housing having a top portion and a bottom portion removably secured to the top portion, the housing including an inlet and an outlet;
at least two chambers secured in the housing, a first chamber configured to receive fluid from the inlet and a second chamber configured to provide fluid to the outlet;
a piston comprising a shaft with a plurality of sealing rings, the piston extending through the housing and through the first chamber and the second chamber and being configured to move in a direction along its longitudinal axis to control a flow of fluid in the control valve assembly; and,
a blending valve comprising a channel, the blending valve and the channel integrally formed in the top portion of the housing, and the channel configured to allow a portion of the fluid in the first chamber to flow from the first chamber into the channel and out of the channel into the second chamber in order to mix the portion with fluid in the second chamber.