Patents Assigned to WHI USA, Inc.
  • Method and apparatus to clean and apply foamed corrosion inhibitor to ferrous surfaces
    Patent number: 6841125
    Abstract: The present invention relates to the application of a coating to a pipeline, FPS (Fire Protection System) or to pipe stock from which a pipeline is fabricated. A composition which when applied to the inside surface of the pipe prevents either chemical corrosion or microbiologically influenced corrosion is disclosed. Also disclosed is a method for utilizing this material to protect both existing pipelines and the raw stock used to construct pipelines and various apparatus for applying a coating of the composition, cleaning, and maintenance of the passive coating. Also disclosed is a method to recycle the composition to be used in other industrial pacification processes.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: January 11, 2005
    Assignee: WHI USA, Inc.
    Inventors: Douglas M. Chartier, Calvin L. Reid
  • Method and apparatus to clean and apply foamed corrosion inhibitor to ferrous surfaces
    Patent number: 6517617
    Abstract: The present invention relates to the application of a coating to a pipeline, FPS (Fire Protection System) or to pipe stock from which a pipeline is fabricated. A composition which when applied to the inside surface of the pipe prevents either chemical corrosion or microbiologically influenced corrosion is disclosed. Also disclosed is a method for utilizing this material to protect both existing pipelines and the raw stock used to construct pipelines and various apparatus for applying a coating of the composition, cleaning, and maintenance of the passive coating. Also disclosed is a method to recycle the composition to be used in other industrial pacification processes.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: February 11, 2003
    Assignee: WHI USA, Inc.
    Inventors: Douglas M. Chartier, Calvin L. Reid