Patents by Inventor William S. Harmon

William S. Harmon 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 for producing random yarn denier variations on draw warping machines
    Patent number: 5333364
    Abstract: The present invention discloses a method of draw warping a plurality of partially oriented synthetic continuous filaments traveling in parallel side by side relation to produce denier variations randomly along the length of each filament and randomly from filament to filament. This is accomplished by transporting the filaments collectively through a draw zone defined between first and second filament engaging members and by imposing a common lengthwise stretching force simultaneously to the filaments with the draw zone while heating the filaments and, finally, by causing the filaments to slip randomly and draw non-uniformly on at least one of the filament engaging members.
    Type: Grant
    Filed: December 4, 1991
    Date of Patent: August 2, 1994
    Assignee: Guilford Mills, Inc.
    Inventors: Jeffrey J. Enfield, William S. Harmon, McDaniel L. Beard