Patents by Inventor Diem Xuan Vuong
Diem Xuan Vuong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10513446Abstract: Systems and methods for the desalination of seawater and the purification of surface and groundwater are provided. The systems utilize the hydrostatic pressure of a natural or induced water column to filter water through a reverse osmosis, nanofiltration or other membrane, whereby a certain desired water quality or potable water is obtained.Type: GrantFiled: September 18, 2015Date of Patent: December 24, 2019Assignee: EcoDesal, LLCInventor: Diem Xuan Vuong
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Publication number: 20170028356Abstract: Water treatment systems and methods are provided to beneficially use the concentrate stream for other, non-potable, use. Embodiments of the invention use the distribution pressure to drive the membrane process and are configured in line with household plumbing so the concentrate is directed through the treatment system but bypassing the treatment mechanism to other uses in the building. In embodiments of this system, only the purified water that is needed for potable consumption is extracted from the water with the rest proceeding to its intended destination at the same pressure.Type: ApplicationFiled: December 5, 2014Publication date: February 2, 2017Inventors: Michael Sean MOTHERWAY, Diem Xuan VUONG, Curtis ROTH
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Publication number: 20160101994Abstract: Systems and methods for the desalination of seawater and the purification of surface and groundwater are provided. The systems utilize the hydrostatic pressure of a natural or induced water column to filter water through a reverse osmosis, nanofiltration or other membrane, whereby a certain desired water quality or potable water is obtained.Type: ApplicationFiled: September 18, 2015Publication date: April 14, 2016Inventor: Diem Xuan Vuong
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Patent number: 8999162Abstract: Water treatment systems and methods are provided to minimize membrane fouling and the required maintenance that results therefrom. A water treatment system includes a pressure vessel with a plurality of spaced-apart membranes disposed therein, and an impeller or other means for circulating feed water through the interior of the vessel and past the membranes. Antifouling particles (such as diatomaceous earth or activated carbon) and/or pellets can be added to the feed water inhibit membrane fouling and extend the useful life of the membranes.Type: GrantFiled: March 14, 2014Date of Patent: April 7, 2015Assignee: Econopure Water Systems, LLCInventors: Diem Xuan Vuong, Michael Sean Motherway, Curtis Roth
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Publication number: 20150060360Abstract: Water treatment systems and methods are provided to minimize membrane fouling and the required maintenance that results therefrom. A water treatment system includes a pressure vessel with a plurality of spaced-apart membranes circularly disposed therein, and an impeller or other means for circulating feed water through the interior of the vessel and past the membranes. Antifouling particles (such as diatomaceous earth or activated carbon) and/or pellets can be added to the feed water inhibit membrane fouling and extend the useful life of the membranes. A feed spacer element having a window-pane pattern can be disposed between adjacent membrane leaves to reduce membrane fouling.Type: ApplicationFiled: March 15, 2013Publication date: March 5, 2015Inventors: Michael Sean Motherway, Diem Xuan Vuong, Curtis Roth
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Publication number: 20140197086Abstract: Water treatment systems and methods are provided to minimize membrane fouling and the required maintenance that results therefrom. A water treatment system includes a pressure vessel with a plurality of spaced-apart membranes disposed therein, and an impeller or other means for circulating feed water through the interior of the vessel and past the membranes. Antifouling particles (such as diatomaceous earth or activated carbon) and/or pellets can be added to the feed water inhibit membrane fouling and extend the useful life of the membranes.Type: ApplicationFiled: March 14, 2014Publication date: July 17, 2014Applicant: DXV Water Technologies, LLCInventors: Diem Xuan Vuong, Michael Sean Motherway, Curtis Roth
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Patent number: 8685252Abstract: Water treatment systems and methods are provided to minimize membrane fouling and the required maintenance that results therefrom. A water treatment system includes a pressure vessel with a plurality of spaced-apart membranes disposed therein, and an impeller or other means for circulating feed water through the interior of the vessel and past the membranes. Antifouling particles (such as diatomaceous earth or activated carbon) and/or pellets can be added to the feed water inhibit membrane fouling and extend the useful life of the membranes.Type: GrantFiled: February 3, 2011Date of Patent: April 1, 2014Assignee: DXV Water Technologies, LLCInventors: Diem Xuan Vuong, Michael Motherway, Curtis Roth
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Patent number: 8366924Abstract: The present invention is directed to a method and apparatus for desalinating seawater utilizing a two stage seawater desalination system, a first stage including at least one high performance nanofiltration membrane to receive seawater feed pressurized by a first stage pump sufficiently and to produce a first permeate, and a second stage including at least one high performance nanofiltration membrane to receive the first permeate pressurized by a second stage pump to between about 200 psi and about 300 psi to produce potable water.Type: GrantFiled: December 1, 2006Date of Patent: February 5, 2013Assignee: City of Long BeachInventor: Diem Xuan Vuong
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Publication number: 20120000851Abstract: Water treatment systems and methods are provided to minimize membrane fouling and the required maintenance that results therefrom. A water treatment system includes a pressure vessel with a plurality of spaced-apart membranes disposed therein, and an impeller or other means for circulating feed water through the interior of the vessel and past the membranes. Antifouling particles (such as diatomaceous earth or activated carbon) and/or pellets can be added to the feed water inhibit membrane fouling and extend the useful life of the membranes. A pressure differential across the membranes can be periodically reduced or eliminated, for example by closing a permeate valve, while the feed water continues to circulate.Type: ApplicationFiled: July 11, 2011Publication date: January 5, 2012Applicant: DXV Water Technologies, LLCInventors: Diem Xuan Vuong, Michael Motherway, Curtis Roth
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Publication number: 20110186513Abstract: Water treatment systems and methods are provided to minimize membrane fouling and the required maintenance that results therefrom. A water treatment system includes a pressure vessel with a plurality of spaced-apart membranes disposed therein, and an impeller or other means for circulating feed water through the interior of the vessel and past the membranes. Antifouling particles (such as diatomaceous earth or activated carbon) and/or pellets can be added to the feed water inhibit membrane fouling and extend the useful life of the membranes.Type: ApplicationFiled: February 3, 2011Publication date: August 4, 2011Applicant: DXV Water Technologies, LLCInventors: Diem Xuan Vuong, Michael Motherway, Curtis Roth
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Publication number: 20100237016Abstract: A DEMWAX™ water treatment system includes membrane modules and a collection channel. The membrane modules are submerged at depth and tethered to one or more anchors on the ocean floor. A breathing tube extends between the collection channel and a buoy floating on the surface of the ocean to expose the collection channel to atmospheric pressure. A pump pumps the permeate from the collection channel to shore through a permeate pipe. One or more permeate storage tanks can optionally be disposed within the system, for example, as part of or extending from the collection channel, to provide extra storage.Type: ApplicationFiled: May 28, 2010Publication date: September 23, 2010Applicant: DXV Water Technologies, LLCInventor: Diem Xuan Vuong
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Publication number: 20100051546Abstract: A water treatment and conveyance system includes a plurality of substantially planar membrane elements arranged in a stack. Adjacent membrane elements in the stack are spaced apart from one another by element spacers. The element spacers have one or more openings that are in fluid communication with the permeate sides of adjacent membrane elements. The openings are sealed off from the source water sides of the membrane elements by one or more sealing members. The openings in the element spacers cooperate to define a conduit for the filtered permeate. Methods for treating water and conveying treated water are also provided.Type: ApplicationFiled: July 3, 2009Publication date: March 4, 2010Applicant: DXV Water Technologies, LLCInventors: Diem Xuan Vuong, Michael Motherway, Curtis Roth, Tom Pankratz
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Publication number: 20080190849Abstract: A DEMWAX™ water treatment system includes membrane modules and a collection channel. The membrane modules are submerged at depth and tethered to one or more anchors on the ocean floor. A breathing tube extends between the collection channel and a buoy floating on the surface of the ocean to expose the collection channel to atmospheric pressure. A pump pumps the permeate from the collection channel to shore through a permeate pipe. One or more permeate storage tanks can optionally be disposed within the system, for example, as part of or extending from the collection channel, to provide extra storage.Type: ApplicationFiled: February 12, 2008Publication date: August 14, 2008Applicant: DXV Water Technologies, LLCInventor: Diem Xuan Vuong
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Patent number: 7144511Abstract: The present invention is directed to a method and apparatus for desalinating seawater utilizing a two stage seawater desalination system, a first stage including at least one high performance nanofiltration membrane to receive seawater feed pressurized by a first stage pump sufficiently and to produce a first permeate, and a second stage including at least one high performance nanofiltration membrane to receive the first permeate pressurized by a second stage pump to between about 200 psi and about 300 psi to produce potable water.Type: GrantFiled: May 2, 2002Date of Patent: December 5, 2006Assignee: City of Long BeachInventor: Diem Xuan Vuong
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Publication number: 20030205526Abstract: The present invention is directed to a method and apparatus for desalinating seawater utilizing a two stage seawater desalination system, a first stage including at least one high performance nanofiltration membrane to receive seawater feed pressurized by a first stage pump sufficiently and to produce a first permeate, and a second stage including at least one high performance nanofiltration membrane to receive the first permeate pressurized by a second stage pump to between about 200 psi and about 300 psi to produce potable water.Type: ApplicationFiled: May 2, 2002Publication date: November 6, 2003Inventor: Diem Xuan Vuong