Patents by Inventor Helen Frances Latham

Helen Frances Latham 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 of after-treatment of a dyeable nylon textile surface with a stain resist and the article produced thereby
    Patent number: 6811574
    Abstract: A method of treating articles having a textile surface (such as broadloom carpets or carpet tiles) with a stainblocker composition is disclosed. After coloring, a stainblocker composition having a temperature from twenty to ninety-five degrees Celsius (20 to 95° C.) is applied. If the articles are carpet tiles, the stainblocker is applied using a flood process. The article is dried in a drying zone having a temperature in the range from seventy-five degrees Celsius to ninety-five degrees Celsius (75-95° C.) for a time sufficient to allow the stainblocker composition to react with the nylon yarn in the textile surface. Preferably, an infra-red oven is used to define the drying zone.
    Type: Grant
    Filed: January 2, 2002
    Date of Patent: November 2, 2004
    Assignee: DuPont Textiles & Interiors, Inc.
    Inventors: Markus Baumann, Helen Frances Latham
  • Method of after-treatment of a dyeable nylon textile surface with a stain resist and the article produced thereby
    Publication number: 20040123399
    Abstract: A method of treating articles having a textile surface (such as broadloom carpets or carpet tiles) with a stainblocker composition is disclosed. After coloring, a stainblocker composition having a temperature from twenty to ninety-five degrees Celsius (20 to 95° C.) is applied. If the articles are carpet tiles, the stainblocker is applied using a flood process. The article is dried in a drying zone having a temperature in the range from seventy-five degrees Celsius to ninety-five degrees Celsius (75-95° C.) for a time sufficient to allow the stainblocker composition to react with the nylon yarn in the textile surface. Preferably, an infra-red oven is used to define the drying zone.
    Type: Application
    Filed: December 15, 2003
    Publication date: July 1, 2004
    Inventors: Markus Baumann, Helen Frances Latham
  • Method of after-treatment of a dyeable nylon textile surface with a stain resist and the article produced thereby
    Publication number: 20020144353
    Abstract: A method of treating articles having a textile surface (such as broadloom carpets or carpet tiles) with a stainblocker composition is disclosed. After coloring, a stainblocker composition having a temperature from twenty to ninety-five degrees Celsius (20 to 95° C.) is applied. If the articles are carpet tiles, the stainblocker is applied using a flood process. The article is dried in a drying zone having a temperature in the range from seventy-five degrees Celsius to ninety-five degrees Celsius (75-95° C.) for a time sufficient to allow the stainblocker composition to react with the nylon yarn in the textile surface. Preferably, an infra-red oven is used to define the drying zone.
    Type: Application
    Filed: January 2, 2002
    Publication date: October 10, 2002
    Inventors: Markus Baumann, Helen Frances Latham