Patents Assigned to Pentair Residential Filtration, LLC
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Patent number: 9550152Abstract: A system and method for a point of use filtration system with backwash is provided. The system includes a first filtration element, a tank, and a second filtration element positioned downstream from the tank. A first and second valve are each positioned downstream from the first filtration element. A first control line is coupled to a first control switch or a first permeate line and the first valve, and a second control line is coupled to the second control switch or a second permeate line and the second valve. When the point of use demands permeate water, the first and second pressure drops cause the first and second valves to open so water from the tank flows in a reverse direction to backwash the first filtration element and exit through the first and second valves to the drain, while water from the tank simultaneously flows through the second filtration element to the point of use.Type: GrantFiled: March 7, 2014Date of Patent: January 24, 2017Assignee: Pentair Residential Filtration, LLCInventor: Tedd Michael Schneidewend
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Patent number: 9314743Abstract: A reverse osmosis system that includes a housing having an inlet port, a permeate port and a concentrate port. The reverse osmosis system further includes a membrane element within the housing and (i) a first connector that has an end which is connected to the inlet port; (ii) a second connector that has an end which is connected to the permeate port; and (iii) a third connector that has an end which is connected to the concentrate port. The end of the first connector fits the inlet port but does not fit the permeate port or the concentrate port. The end of the second connector fits the permeate port but does not fit the inlet port or the concentrate port. The end of the third connector fits the concentrate port but does not fit the inlet port or the permeate port.Type: GrantFiled: September 11, 2008Date of Patent: April 19, 2016Assignee: Pentair Residential Filtration, LLCInventors: Steven D. Kloos, Philip M. Rolchigo, Christopher J. Kurth, Chia Kung, Thomas J. Cartwright, Richard M. Reckin, Kenneth J. Sieth
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Patent number: 9302920Abstract: Integrated controller and method for a water filtration system. The system can include a membrane filter, a valve coupled to the membrane filter, and a water softener and/or a media filter. The filtration system can include a controller coupled to membrane filter and coupled to the water softener and/or the media filter. The controller can include a flow meter and a switch. The flow meter can be coupled to the membrane filter and the water softener and/or the media filter. The switch can be electrically connected to the valve. In some embodiments, the controller can cause the switch to flush the membrane filter only when the water softener and/or the media filter is not being regenerated.Type: GrantFiled: March 28, 2006Date of Patent: April 5, 2016Assignee: Pentair Residential Filtration, LLCInventors: Daniel Scott Elko, David J. Averbeck
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Patent number: 9181115Abstract: Embodiments of the invention provide a method and system for providing a regeneration stage in a water treatment system. The method can include entering a first air bleed state to allow pressurized, deoxygenated air to exit the water treatment system, entering a second air bleed state to equalize a first air pressure of remaining deoxygenated air inside the water treatment system with a second air pressure outside the water treatment system, entering a backwash state to expel remaining deoxygenated air and particulates from inside the water treatment system, and entering an air draw state to allow oxygenated air to enter the water treatment system.Type: GrantFiled: January 6, 2014Date of Patent: November 10, 2015Assignee: PENTAIR RESIDENTIAL FILTRATION, LLCInventors: Andrew Tischendorf, Michael P. Lindfors, Kyle Paull
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Patent number: 9010361Abstract: Embodiments of the invention provide a control valve assembly and method of fault detection that includes adjusting a valve between an operating position and a fault position in response to various fault conditions. The control valve assembly is adjustable to accommodate fault conditions encountered in a variety of electrochemical deionization systems.Type: GrantFiled: October 27, 2011Date of Patent: April 21, 2015Assignee: Pentair Residential Filtration, LLCInventors: David J. Averbeck, George Shoemaker Ellis
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Patent number: 8961770Abstract: Embodiments of the invention provide a method of operating a flow-through capacitor and a related controller for performing the method. The method includes establishing a summed-current capacity of the flow-through capacitor. In an operational cycle, the flow-through capacitor is operated to transfer ions between the pair of electrodes and water. A current is monitored during operation of the flow-through capacitor. This current is integrated over time to calculate a monitored-current value. To determine an end of the operational cycle, the monitored-current value is compared to the summed-current capacity.Type: GrantFiled: October 27, 2011Date of Patent: February 24, 2015Assignee: Pentair Residential Filtration, LLCInventors: David J. Averbeck, Rebecca M. Tallon, Brett A. Boedeker
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Patent number: 8758627Abstract: Embodiments of the invention provide a twin tank water treatment system and method. The water treatment system includes first tank with a first set of sensors and a first resin bed, a second tank with a second set of sensors and a second resin bed, and a valve assembly with a flow meter and a controller in communication with the first set of sensors, the second set of sensors, and the flow meter. The method includes determining when the resin beds are exhausted based on input from the flow meter, the sensors, and a water hardness setting.Type: GrantFiled: November 19, 2013Date of Patent: June 24, 2014Assignee: Pentair Residential Filtration, LLCInventors: John A. Stewart, Andrew F. Tischendorf, Kenneth J. Sieth, Rahul Sadashiv Kamble
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Publication number: 20140144845Abstract: Embodiments of the invention provide a method and system for providing a regeneration stage in a water treatment system. The method can include entering a first air bleed state to allow pressurized, deoxygenated air to exit the water treatment system, entering a second air bleed state to equalize a first air pressure of remaining deoxygenated air inside the water treatment system with a second air pressure outside the water treatment system, entering a backwash state to expel remaining deoxygenated air and particulates from inside the water treatment system, and entering an air draw state to allow oxygenated air to enter the water treatment system.Type: ApplicationFiled: January 6, 2014Publication date: May 29, 2014Applicant: Pentair Residential Filtration, LLCInventors: Andrew Tischendorf, Michael M. Lindfors, Kyle Paull
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Publication number: 20140076813Abstract: Embodiments of the invention provide a twin tank water treatment system and method. The water treatment system includes first tank with a first set of sensors and a first resin bed, a second tank with a second set of sensors and a second resin bed, and a valve assembly with a flow meter and a controller in communication with the first set of sensors, the second set of sensors, and the flow meter. The method includes determining when the resin beds are exhausted based on input from the flow meter, the sensors, and a water hardness setting.Type: ApplicationFiled: November 19, 2013Publication date: March 20, 2014Applicant: Pentair Residential Filtration, LLCInventors: Michael A. Stewart, Andrew F. Tischendorf, Kenneth J. Sieth, Rahul Sadashiv Kamble
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Patent number: 8671985Abstract: Embodiments of the invention provide a control valve assembly and method of operating in a blend position at which a supply fluid and a treated fluid are combined into a blended fluid that is directed from the control valve assembly to establish multi-port blending. The control valve assembly is adjustable to accommodate fluctuating demand for treated fluid.Type: GrantFiled: October 27, 2011Date of Patent: March 18, 2014Assignee: Pentair Residential Filtration, LLCInventors: David J. Averbeck, George Shoemaker Ellis
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Patent number: 8623217Abstract: Embodiments of the invention provide a method and system for providing a regeneration stage in a water treatment system. The method can include entering a first air bleed state to allow pressurized, deoxygenated air to exit the water treatment system, entering a second air bleed state to equalize a first air pressure of remaining deoxygenated air inside the water treatment system with a second air pressure outside the water treatment system, entering a backwash state to expel remaining deoxygenated air and particulates from inside the water treatment system, and entering an air draw state to allow oxygenated air to enter the water treatment system.Type: GrantFiled: July 26, 2013Date of Patent: January 7, 2014Assignee: Pentair Residential Filtration, LLCInventors: Andrew Tischendorf, Michael M. Lindfors, Kyle Paull
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Patent number: 8608963Abstract: Embodiments of the invention provide a twin tank water treatment system and method. The water treatment system includes first tank with a first set of sensors and a first resin bed, a second tank with a second set of sensors and a second resin bed, and a valve assembly with a flow meter and a controller in communication with the first set of sensors, the second set of sensors, and the flow meter. The method includes determining when the resin beds are exhausted based on input from the flow meter, the sensors, and a water hardness setting.Type: GrantFiled: September 29, 2010Date of Patent: December 17, 2013Assignee: Pentair Residential Filtration, LLCInventors: John Stewart, Andrew F. Tischendorf, Kenneth J. Sieth, Rahul Sadashiv Kamble
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Publication number: 20130306578Abstract: Embodiments of the invention provide a method and system for providing a regeneration stage in a water treatment system. The method can include entering a first air bleed state to allow pressurized, deoxygenated air to exit the water treatment system, entering a second air bleed state to equalize a first air pressure of remaining deoxygenated air inside the water treatment system with a second air pressure outside the water treatment system, entering a backwash state to expel remaining deoxygenated air and particulates from inside the water treatment system, and entering an air draw state to allow oxygenated air to enter the water treatment system.Type: ApplicationFiled: July 26, 2013Publication date: November 21, 2013Applicant: Pentair Residential Filtration, LLCInventors: Andrew Tischendorf, Michael M. Lindfors, Kyle Paull
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Patent number: 8500999Abstract: Embodiments of the invention provide a method and system for providing a regeneration stage in a water treatment system. The method can include entering a first air bleed state to allow pressurized, deoxygenated air to exit the water treatment system, entering a second air bleed state to equalize a first air pressure of remaining deoxygenated air inside the water treatment system with a second air pressure outside the water treatment system, entering a backwash state to expel remaining deoxygenated air and particulates from inside the water treatment system, and entering an air draw state to allow oxygenated air to enter the water treatment system.Type: GrantFiled: February 1, 2010Date of Patent: August 6, 2013Assignee: Pentair Residential Filtration, LLCInventors: Andrew Tischendorf, Michael M. Lindfors, Kyle Paull
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Publication number: 20120228212Abstract: Some embodiments of the invention provide an asymmetric activated carbon block comprising at least a first element and a second element. In some embodiments, the first element can comprise at least two constituents and the second element can comprise at least two constituents. In some embodiments, at least a portion of the first element can be positioned within the second element and at least one of the at least two constituents of the first element can differ from at least one of the at least two constituents of the second element. In some embodiments, the first element and the second element can be asymmetric with respect to a structural property. Some embodiments include part of the first element being located immediately adjacent the second element.Type: ApplicationFiled: March 8, 2011Publication date: September 13, 2012Applicant: Pentair Residential Filtration, LLCInventors: Ken K. Jian, Thomas W. Clarke
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Patent number: D704307Type: GrantFiled: February 12, 2013Date of Patent: May 6, 2014Assignee: Pentair Residential Filtration, LLCInventor: Benjamin R. Lloyd
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Patent number: D735835Type: GrantFiled: March 20, 2014Date of Patent: August 4, 2015Assignee: Pentair Residential Filtration, LLCInventor: Benjamin R. Lloyd
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Patent number: D747731Type: GrantFiled: February 12, 2013Date of Patent: January 19, 2016Assignee: Pentair Residential Filtration, LLCInventor: Bruna Valente Oliveira
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Patent number: D755344Type: GrantFiled: June 26, 2014Date of Patent: May 3, 2016Assignee: Pentair Residential Filtration, LLCInventors: Richard Reckin, Tedd M. Schneidewend
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Patent number: D758404Type: GrantFiled: June 3, 2014Date of Patent: June 7, 2016Assignee: Pentair Residential Filtration, LLCInventors: Andrew Lindgren, Emilee Richter