Patents by Inventor Christopher P. Rycroft

Christopher P. Rycroft 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).

  • Chemical agents and method for the inhibition of corrosion and deposit formation in water systems
    Patent number: 5630985
    Abstract: A chemical formulation and method are provided for the treatment of water to prevent, control or inhibit corrosion and/or deposits, particularly for the treatment of water in water distribution piping and equipment and associated heat exchangers and more particularly for the treatment of water in heat transfer equipment wherein water or steam is employed as the heat transfer medium. The method treats the water with at least one mono- or polyhydric alcohol. Optionally, the treatment formulation is a blend of mono- or polyhydric alcohols and further optionally includes one or more of a mixed molecular weight polyacrylic acid and/or at least one salt thereof; at least one chromium-free lignosulfonate, and at least one carboxylic acid and/or at least one salt thereof, the carboxylic acid being different from the poly acrylic acid.
    Type: Grant
    Filed: January 4, 1995
    Date of Patent: May 20, 1997
    Assignee: Buckman Laboratories International, Inc.
    Inventors: Dennis C. Williams, Christopher P. Rycroft