Patents by Inventor Ella Murphy

Ella Murphy 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).

  • Multi-stage filtration and softening module and reduced scaling operation
    Publication number: 20040129637
    Abstract: A filtration module has a plurality of hollow fibre nanofiltration or reverse osmosis membranes suspended between a pair of opposed headers. The lumens of the membranes are the retentate or feed side. The membranes are arranged in groups, such as sectors of a cylinder, and form preceding or succeeding stages. A permeate collection plenum is in direct fluid communication with each stage. The stages are connected by caps typically having dividers located at the ends of the module. The module is used to filter water and, when optionally fitted with hollow fibre membranes adapted to selectively reject hardness causing salts, is used to remove hardness. Methods of cleaning using acidic solutions or gaseous carbon dioxide are discussed.
    Type: Application
    Filed: October 9, 2003
    Publication date: July 8, 2004
    Inventors: Hidayat Husain, Henry Behmann, Pierre Lucien Cote, Ian Alexander Pottinger, Ella Murphy
  • Multi-stage filtration and softening module and reduced scaling operation
    Patent number: 6702944
    Abstract: A filtration module has at least one nanofiltration or reverse osmosis membrane. The module is used to filter water and, when optionally fitted with at least one membrane adapted to selectively reject hardness causing salts, is used to remove hardness. Methods of cleaning using acidic solutions or gaseous carbon dioxide are discussed. Cleaning methods include the steps of periodically stopping permeation, injecting an acidic solution or gaseous carbon dioxide into the feed/retentate side of the module, holding the acidic solution or gaseous carbon dioxide in the module for a selected time, and flushing the acidic solution or gaseous carbon dioxide from the feed/retentate side of the module after expiration of the selected time.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: March 9, 2004
    Assignee: Zenon Environmental Inc.
    Inventors: Hidayat Husain, Henry Behmann, Pierre Côté, Ian Pottinger, Ella Murphy
  • Multi-stage filtration and softening module and reduced scaling operation
    Publication number: 20020108906
    Abstract: A filtration module has a plurality of hollow fibre nanofiltration or reverse osmosis membranes suspended between a pair of opposed headers. The lumens of the membranes are the retentate or feed side. The membranes are arranged in groups, such as sectors of a cylinder, and form preceding or succeeding stages. A permeate collection plenum is in direct fluid communication with each stage. The stages are connected by caps typically having dividers located at the ends of the module. The module is used to filter water and, when optionally fitted with hollow fibre membranes adapted to selectively reject hardness causing salts, is used to remove hardness. Methods of cleaning using acidic solutions or gaseous carbon dioxide are discussed.
    Type: Application
    Filed: June 29, 2001
    Publication date: August 15, 2002
    Inventors: Hidayat Husain, Henry Behmann, Pierre Cote, Ian Pottinger, Ella Murphy