Patents by Inventor Samuel E. Workman

Samuel E. Workman 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).

  • Patent number: 4398676
    Abstract: Yarn winding apparatus having a pair of windups one above the other. A pair of rotatable package supports for each windup are alternately movable into surface driven engagement with a drive roll. During winding packages contact the drive roll until full. In doffing, an empty package contacts the drive roll; the yarn breaks from the full package to engage the empty package. A guide plate is rotated in contact with the yarn to lift it from the traverse guides and direct it to a location outside the path of travel of the traverse guides where a transfer tail is wound.
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: August 16, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Johannes E. A. Koppen, Samuel E. Workman