Patents by Inventor George Arvid Fernstrom

George Arvid Fernstrom 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).

  • Filamentary tow packaging method
    Patent number: 4003195
    Abstract: A filamentary tow package is prepared in which the tow is in layers of substantially vertical folds and has adjacent layers impacted with one another. Sections of the tow are alternately twisted to give helix angles varying from greater than 45.degree. in an S direction to greater than 45.degree. in a Z direction. The helix angle of the tow is increased by impacting it into layers of tow previously laid down. Removal of tow from the package is improved.
    Type: Grant
    Filed: February 2, 1976
    Date of Patent: January 18, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: George Arvid Fernstrom, James Richard Osborn, Jr.
  • Filamentary tow package and method for making
    Patent number: 3944071
    Abstract: A filamentary tow package in which the tow is in layers of substantially vertical folds and has adjacent layers impacted with one another. Sections of the tow are twisted and vary in helix angle from greater than 45.degree. in an S direction to greater than 45 degrees in a Z direction. The helix angle of the tow is increased by impacting it into layers of tow previously laid down.
    Type: Grant
    Filed: September 12, 1974
    Date of Patent: March 16, 1976
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventors: George Arvid Fernstrom, James Richard Osborn, Jr.