Patents by Inventor Reshma Madhusudan

Reshma Madhusudan 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).

  • Patent number: 8894834
    Abstract: A water treatment system provides treated or softened water to a point of use by removing a portion of any hardness-causing species contained in water from a point of entry coming from a water source, such as municipal water, well water, brackish water and water containing foulants. The water treatment system typically treats the water containing at least some undesirable species before delivering the treated water to a point of use. The water treatment system has a reservoir system in line with an electrochemical device such as an electrodeionization device. The water treatment system has a sensor or a set of sensors for measuring at least one property of the water or an operating condition of the treatment system.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: November 25, 2014
    Assignee: Evoqua Water Technologies LLC
    Inventors: Evgeniya Freydina, Anil D. Jha, Frederick Wilkins, Aytac Sezgi, Reshma Madhusudan
  • Patent number: 8864971
    Abstract: A treatment system provides treated or softened water to a point of use by removing at least a portion of any undesirable species contained in water from a water source. The treatment system can be operated to reduce the likelihood of formation of any scale that can be generated during normal operation of an electrochemical device. The formation of scale in the treatment system, including its wetted components, may be inhibited by reversing or substituting the flowing liquid having hardness-causing species with another liquid having a low tendency to produce scale, such as a low LSI water. Various arrangements of components in the treatment system can be flushed by directing the valves and the pumps of the system to displace liquid having hardness-causing species with a liquid that has little or no tendency to form scale.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: October 21, 2014
    Assignee: Evoqua Water Technologies LLC
    Inventors: Anil D. Jha, Frederick C. Wilkins, Evgeniya Freydina, Aytac Sezgi, Reshma Madhusudan
  • Patent number: 8658043
    Abstract: A water treatment system provides treated water to a point of use by removing at least a portion of any hardness-causing species contained in water from a water source, such as municipal water, well water, brackish water and water containing foulants. The water treatment system typically receives water from the water source or a point of entry and purifies the water containing at least some undesirable species before delivering the treated water to a point of use. The water treatment system has a pressurized reservoir system in line with an electrochemical device such as an electrodeionization device. The water treatment system can have a controller for adjusting or regulating at least one operating parameter of the treatment system or a component of the water treatment system. The electrochemical device can be operated at a low current and low flow rate to minimize water splitting or polarization, which minimizes scale formation.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: February 25, 2014
    Assignee: Siemens Water Technologies LLC
    Inventors: Frederick Wilkins, Evgeniya Freydina, Aytac Sezgi, Reshma Madhusudan, Anil D. Jha
  • Publication number: 20130256135
    Abstract: A treatment system provides treated or softened water to a point of use by removing at least a portion of any undesirable species contained in water from a water source. The treatment system can be operated to reduce the likelihood of formation of any scale that can be generated during normal operation of an electrochemical device. The formation of scale in the treatment system, including its wetted components, may be inhibited by reversing or substituting the flowing liquid having hardness-causing species with another liquid having a low tendency to produce scale, such as a low LSI water. Various arrangements of components in the treatment system can be flushed by directing the valves and the pumps of the system to displace liquid having hardness-causing species with a liquid that has little or no tendency to form scale.
    Type: Application
    Filed: February 15, 2013
    Publication date: October 3, 2013
    Applicant: SIEMENS INDUSTRY, INC.
    Inventors: Anil D. Jha, Frederick C. Wilkins, Evgeniya Freydina, Aytac Sezgi, Reshma Madhusudan
  • Patent number: 8377279
    Abstract: A treatment system provides treated or softened water to a point of use by removing at least a portion of any undesirable species contained in water from a water source. The treatment system can be operated to reduce the likelihood of formation of any scale that can be generated during normal operation of an electrochemical device. The formation of scale in the treatment system, including its wetted components, may be inhibited by reversing or substituting the flowing liquid having hardness-causing species with another liquid having a low tendency to produce scale, such as a low LSI water. Various arrangements of components in the treatment system can be flushed by directing the valves and the pumps of the system to displace liquid having hardness-causing species with a liquid that has little or no tendency to form scale.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: February 19, 2013
    Assignee: Siemens Industry, Inc.
    Inventors: Anil D. Jha, Frederick Wilkins, Evgeniya Freydina, Aytac Sezgi, Reshma Madhusudan
  • Patent number: 8114260
    Abstract: A water treatment system provides treated or softened water to a point of use by removing a portion of any hardness-causing species contained in water from a point-of-entry coming from a water source, such as municipal water, well water, brackish water and water containing foulants. The water treatment system typically treats the water containing at least some undesirable species before delivering the treated water to a point of use. The water treatment system has a controller for adjusting or regulating at least one operating parameter of the treatment system or a component of the water treatment system to optimize the operation and performance of the system or components of the system. A flow regulator regulates a waste stream flow to drain and can be operated to recirculate fluid through electrode or concentrating compartments of an electrochemical device and can opened and closed intermittently according to a predetermined schedule or based on an operating parameter of the water treatment system.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: February 14, 2012
    Assignee: Siemens Industry, Inc.
    Inventors: Frederick C. Wilkins, Evgeniya Freydina, Aytac Sezgi, Reshma Madhusudan, Anil Jha
  • Publication number: 20110120886
    Abstract: A water treatment system provides treated water to a point of use by removing at least a portion of any hardness-causing species contained in water from a water source, such as municipal water, well water, brackish water and water containing foulants. The water treatment system typically receives water from the water source or a point of entry and purifies the water containing at least some undesirable species before delivering the treated water to a point of use. The water treatment system has a pressurized reservoir system in line with an electrochemical device such as an electrodeionization device. The water treatment system can have a controller for adjusting or regulating at least one operating parameter of the treatment system or a component of the water treatment system. The electrochemical device can be operated at a low current and low flow rate to minimize water splitting or polarization, which minimizes scale formation.
    Type: Application
    Filed: December 7, 2010
    Publication date: May 26, 2011
    Applicant: SIEMENS WATER TECHNOLOGIES HOLDING CORP.
    Inventors: Anil D. Jha, Frederick Wilkins, Evgeniya Freydina, Aytac Sezgi, Reshma Madhusudan, Michael Reardon
  • Publication number: 20110120953
    Abstract: A method and apparatus for producing purified water. Treated water may be provided for domestic use wherein the water may be treated by removing selected dissolved species while retaining properties that may improve the properties or aesthetics of the water.
    Type: Application
    Filed: November 19, 2010
    Publication date: May 26, 2011
    Applicant: SIEMENS WATER TECHNOLOGIES HOLDING CORP.
    Inventors: Frederick Wilkins, Evgeniya Freydina, Aytac Sezgi, Reshma Madhusudan, Anil D. Jha
  • Patent number: 7862700
    Abstract: A method and apparatus for producing purified water. Treated water may be provided for domestic use wherein the water may be treated by removing selected dissolved species while retaining properties that may improve the properties or aesthetics of the water.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: January 4, 2011
    Assignee: Siemens Water Technologies Holding Corp.
    Inventors: Frederick Wilkins, Evgeniya Freydina, Aytac Sezgi, Reshma Madhusudan, Anil D. Jha
  • Patent number: 7846340
    Abstract: A water treatment system provides treated or softened water to a point of use by removing a portion of any hardness-causing species contained in water from a point of entry coming from a water source, such as municipal water, well water, brackish water and water containing foulants. The water treatment system typically treats the water containing at least some undesirable species before delivering the treated water to a point of use. The water treatment system has a reservoir system in line with an electrochemical device. The electrochemical device of the water treatment system is operated at a low current and low flow rate to minimize water splitting or polarization, which minimizes scale formation.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: December 7, 2010
    Assignee: Siemens Water Technologies Corp.
    Inventors: Evgeniya Freydina, Anil D. Jha, Frederick Wilkins, Aytac Sezgi, Reshma Madhusudan
  • Patent number: 7604725
    Abstract: The present invention is directed to a water treatment or purification system and method for providing treated water in industrial, commercial and residential applications. The treatment system provides treated or softened water to a point of use by removing at least a portion of any hardness-causing species contained in water from a water source, such as municipal water, well water, brackish water and water containing foulants. The water treatment system includes an electrochemical device, such as an electrodeionization device, that can have at least one compartment that generates and traps hydrogen ions which can be used in another compartment of the electrochemical device such as, an electrode compartment, to reduce or at least dissolve any scale. Other applications of the system would be in the treatment and processing of foods and beverages, sugars, various industries such as the chemical, pharmaceutical, waste water treatment and power generating industries.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: October 20, 2009
    Assignee: Siemens Water Technologies Holding Corp.
    Inventors: Gary Ganzi, Anil D. Jha, Frederick Wilkins, Evgeniya Freydina, Aytac Sezgi, Reshma Madhusudan
  • Publication number: 20090236235
    Abstract: A water treatment system provides treated or softened water to a point of use by removing a portion of any hardness-causing species contained in water from a point-of-entry coming from a water source, such as municipal water, well water, brackish water and water containing foulants. The water treatment system typically treats the water containing at least some undesirable species before delivering the treated water to a point of use. The water treatment system has a controller for adjusting or regulating at least one operating parameter of the treatment system or a component of the water treatment system to optimize the operation and performance of the system or components of the system. A flow regulator regulates a waste stream flow to drain and can be operated to recirculate fluid through electrode or concentrating compartments of an electrochemical device and can opened and closed intermittently according to a predetermined schedule or based on an operating parameter of the water treatment system.
    Type: Application
    Filed: June 2, 2009
    Publication date: September 24, 2009
    Applicant: SIEMENS WATER TECHNOLOGIES HOLDING CORP.
    Inventors: Frederick Wilkins, Evgeniya Freydina, Aytac Sezgi, Reshma Madhusudan, Anil D. Jha
  • Patent number: 7582198
    Abstract: A method and apparatus for producing purified water. An electrochemical system can be configured to pass product water through depletion compartments as well as a cathode compartment. An electrochemical apparatus may also be configured to pass concentrate through both concentrating compartments and an anode compartment.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: September 1, 2009
    Assignee: Siemens Water Technologies Holding Corp.
    Inventors: Frederick Wilkins, Evgeniya Freydina, Aytac Sezgi, Reshma Madhusudan, Anil D. Jha
  • Patent number: 7563351
    Abstract: A water treatment system provides treated or softened water to a point of use by removing a portion of any hardness-causing species contained in water from a point-of-entry coming from a water source, such as municipal water, well water, brackish water and water containing foulants. The water treatment system typically treats the water containing at least some undesirable species before delivering the treated water to a point of use. The water treatment system has a controller for adjusting or regulating at least one operating parameter of the treatment system or a component of the water treatment system to optimize the operation and performance of the system or components of the system. A flow regulator regulates a waste stream flow to drain and can be operated to recirculate fluid through electrode or concentrating compartments of an electrochemical device and can opened and closed intermittently according to a predetermined schedule or based on an operating parameter of the water treatment system.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: July 21, 2009
    Assignee: Siemens Water Technologies Holding Corp.
    Inventors: Frederick Wilkins, Evgeniya Freydina, Aytac Sezgi, Reshma Madhusudan, Anil D. Jha
  • Patent number: 7083733
    Abstract: A water treatment system provides treated or softened water to a point of use by removing a portion of any hardness-causing species contained in water from a point of entry coming from a water source, such as municipal water, well water, brackish water and water containing foulants. The water treatment system typically treats the water containing at least some undesirable species before delivering the treated water to a point of use. The water treatment system has a reservoir system in line with an electrochemical device such as an electrodeionization device. The water treatment system has a sensor or a set of sensors for measuring at least one property of the water or an operating condition of the treatment system.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: August 1, 2006
    Assignee: USFilter Corporation
    Inventors: Evgeniya Freydina, Anil D. Jha, Frederick Wilkins, Aytac Sezgi, Reshma Madhusudan
  • Publication number: 20060157422
    Abstract: A water treatment system provides treated or softened water to a point of use by removing a portion of any hardness-causing species contained in water from a point of entry coming from a water source, such as municipal water, well water, brackish water and water containing foulants. The water treatment system typically treats the water containing at least some undesirable species before delivering the treated water to a point of use. The water treatment system has a reservoir system in line with an electrochemical device such as an electrodeionization device. The water treatment system has a sensor or a set of sensors for measuring at least one property of the water or an operating condition of the treatment system.
    Type: Application
    Filed: December 19, 2005
    Publication date: July 20, 2006
    Inventors: Evgeniya Freydina, Anil Jha, Frederick Wilkins, Aytac Sezgi, Reshma Madhusudan
  • Publication number: 20050103723
    Abstract: A method and apparatus for producing purified water. Treated water may be provided for domestic use wherein the water may be treated by removing selected dissolved species while retaining properties that may improve the properties or aesthetics of the water.
    Type: Application
    Filed: November 13, 2003
    Publication date: May 19, 2005
    Applicant: United States Filter Corporation
    Inventors: Frederick Wilkins, Evgeniya Freydina, Aytac Sezgi, Reshma Madhusudan, Anil Jha
  • Publication number: 20050103631
    Abstract: A water treatment system provides treated or softened water to a point of use by removing a portion of any hardness-causing species contained in water from a point of entry coming from a water source, such as municipal water, well water, brackish water and water containing foulants. The water treatment system typically treats the water containing at least some undesirable species before delivering the treated water to a point of use. The water treatment system has a reservoir system in line with an electrochemical device. The electrochemical device of the water treatment system is operated at a low current and low flow rate to minimize water splitting or polarization, which minimizes scale formation.
    Type: Application
    Filed: November 13, 2003
    Publication date: May 19, 2005
    Applicant: United States Filter Corporation
    Inventors: Evgeniya Freydina, Anil Jha, Frederick Wilkins, Aytac Sezgi, Reshma Madhusudan
  • Publication number: 20050103622
    Abstract: A treatment system provides treated or softened water to a point of use by removing at least a portion of any undesirable species contained in water from a water source. The treatment system can be operated to reduce the likelihood of formation of any scale that can be generated during normal operation of an electrochemical device. The formation of scale in the treatment system, including its wetted components, may be inhibited by reversing or substituting the flowing liquid having hardness-causing species with another liquid having a low tendency to produce scale, such as a low LSI water. Various arrangements of components in the treatment system can be flushed by directing the valves and the pumps of the system to displace liquid having hardness-causing species with a liquid that has little or no tendency to form scale.
    Type: Application
    Filed: November 13, 2003
    Publication date: May 19, 2005
    Applicant: United States Filter Corporation
    Inventors: Anil Jha, Frederick Wilkins, Evgeniya Freydina, Aytac Sezgi, Reshma Madhusudan
  • Publication number: 20050103722
    Abstract: A water treatment system provides treated or softened water to a point of use by removing a portion of any hardness-causing species contained in water from a point of entry coming from a water source, such as municipal water, well water, brackish water and water containing foulants. The water treatment system typically treats the water containing at least some undesirable species before delivering the treated water to a point of use. The water treatment system has a reservoir system in line with an electrochemical device such as an electrodeionization device. The water treatment system has a sensor or a set of sensors for measuring at least one property of the water or an operating condition of the treatment system.
    Type: Application
    Filed: November 13, 2003
    Publication date: May 19, 2005
    Applicant: United States Filter Corporation
    Inventors: Evgeniya Freydina, Anil Jha, Frederick Wilkins, Aytac Sezgi, Reshma Madhusudan