Patents by Inventor Thomas Aquinas Barry

Thomas Aquinas Barry 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 the production of metallic flake pigments
    Patent number: 6464769
    Abstract: A method of manufacturing metallic, especially aluminum flake pigments comprises comminuting metallic flake particles in an inert solvent such as mineral spirit and in-line screening of the slurry thus formed in at least two in-line cylindrical rotary screens with different mesh size. The screening system is fully enclosed to avoid solvent emissions. The finished product has consistent flake particle size distribution with brighter metallic finishes than conventionally produced products.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: October 15, 2002
    Assignees: US Aluminum Inc., Shamrock Aluminium Limited, Canbro INC
    Inventors: Arun Kumar Chattopadhyay, Talal Soufanati, Michel Moffatt, Thomas Aquinas Barry, Samir Sanyal
  • Method for the production of metallic flake pigments
    Publication number: 20020005144
    Abstract: A method of manufacturing metallic, especially aluminum flake pigments comprises comminuting metallic flake particles in an inert solvent such as mineral spirit and in-line screening of the slurry thus formed in at least two in-line cylindrical rotary screens with different mesh size. The screening system is fully enclosed to avoid solvent emissions. The finished product has consistent flake particle size distribution with brighter metallic finishes than conventionally produced products.
    Type: Application
    Filed: April 3, 2001
    Publication date: January 17, 2002
    Inventors: Arun Kumar Chattopadhyay, Talal Soufanati, Michel Moffatt, Thomas Aquinas Barry, Samir Sanyal
  • Production of pigments
    Patent number: 6235104
    Abstract: Metal pigment, especially aluminum pigment is produced in a non toxic environment by milling and/or blending in an inert medium comprising transesterified alkyl, especially methyl esters of vegetable oils selected from soybean oil, cotton seed oil and linseed oil. The metallic pigments produced are of improved quality and appearance. They have improved brightness and the non-leafing pigments produced have highly leafing characteristics.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: May 22, 2001
    Assignee: Dahlia Ireland Limited
    Inventors: Arun Kumar Chattopadhyay, Thomas Aquinas Barry