Patents by Inventor Steven Douglas Jons

Steven Douglas Jons 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).

  • METHOD FOR TESTING SEPARATION MODULES
    Publication number: 20100148752
    Abstract: New methods and apparatus are described for assessing the integrity of a separation module or filtration system. A principle embodiment concerns use of a transient pulse of challenge species to probe a spiral wound module. The resulting time-dependent concentration of challenge species in the permeate is detected, recorded, and compared to a reference. An apparatus is further claimed for detecting permeate conductivity at multiple points within the permeate collection tube of a spiral wound module. Also disclosed is a process whereby the permeate stream from a filtration system is concentration by a high recovery membrane apparatus prior to measurement of challenge species concentration.
    Type: Application
    Filed: February 18, 2010
    Publication date: June 17, 2010
    Inventors: Steven Douglas Jons, Jon E. Johnson, Michael A. Fialkowski
  • Method for testing separation modules
    Patent number: 7698928
    Abstract: New methods and apparatus are described for assessing the integrity of a separation module or filtration system. A principle embodiment concerns use of a transient pulse of challenge species to probe a spiral wound module. The resulting time-dependent concentration of challenge species in the permeate is detected, recorded, and compared to a reference. An apparatus is further claimed for detecting permeate conductivity at multiple points within the permeate collection tube of a spiral wound module. Also disclosed is a process whereby the permeate stream from a filtration system is concentration by a high recovery membrane apparatus prior to measurement of challenge species concentration.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: April 20, 2010
    Assignee: Dow Global Technologies, Inc.
    Inventors: Steven Douglas Jons, Jon E. Johnson, Michael A. Fialkowski
  • Method for Testing Separation Modules
    Publication number: 20080105038
    Abstract: New methods and apparatus are described for assessing the integrity of a separation module or filtration system. A principle embodiment concerns use of a transient pulse of challenge species to probe a spiral wound module. The resulting time-dependent concentration of challenge species in the permeate is detected, recorded, and compared to a reference. An apparatus is further claimed for detecting permeate conductivity at multiple points within the permeate collection tube of a spiral wound module. Also disclosed is a process whereby the permeate stream from a filtration system is concentration by a high recovery membrane apparatus prior to measurement of challenge species concentration.
    Type: Application
    Filed: July 29, 2005
    Publication date: May 8, 2008
    Inventors: Steven Douglas Jons, Jon E. Johnson, Michael A. Fialkowski