Patents by Inventor William Woodbridge Durling

William Woodbridge Durling 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: 3950932
    Abstract: A multi-colored, cabled, stuffer box crimped yarn containing filaments of respectively at least two non-contrasting colors and a contrasting color, the filaments of the at least two non-contrasting colors imparting a heather appearance to the yarn and the filaments of the contrasting color imparting color accents to the yarn, is produced by cabling together at least three stuffer box crimped multifilament ends, each of the three ends containing filaments of at least two non-contrasting colors and one of the three ends containing filaments of the contrasting color in a discrete grouping and in a proportion greater than the proportion in the same end of filaments of any individual non-contrasting color and, prior to being twisted together with the other ends, containing a twist in the same sense as the twist to be imparted in the step of twisting together all the ends and, after being twisted together with the other ends, preferably containing a twist of a higher degree than the twist contained in the other end
    Type: Grant
    Filed: December 30, 1974
    Date of Patent: April 20, 1976
    Assignee: Concorde Fibers Inc.
    Inventor: William Woodbridge Durling