Patents by Inventor Jeanne A. Leon

Jeanne A. Leon 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).

  • Paper machine felts of a copolymer of 1,4-dimethylolcyclohexane, terephthalic acid, and isophthalic acid
    Patent number: 5169499
    Abstract: This invention relates to a paper machine clothing having improved hydrolysis resistance and suitable for use in the forming, pressing or drying sections of a paper making machine, and has particular reference to paper making machine clothing used in the dryer section of a paper making machine, such as through air drying fabrics, and dryer screens.According to one aspect of the present invention, there is provided an article of paper making machine clothing suitable for use in the forming, pressing or drying sections of a paper making machine which article includes a fibre structure characterized in that the fibres of said structure comprise a polyester material having a hintered carboxyl group and in that said fibres have a melting point greater than 260.degree. C. The fibres are a copolymer of terephthalic acid, 1,4-dimethylolcyclohexane and isophthalic acid.
    Type: Grant
    Filed: April 4, 1991
    Date of Patent: December 8, 1992
    Assignee: Albany International Corp.
    Inventors: Dana B. Eagles, Jeanne A. Leon, Francis Ditaranto