Patents by Inventor Benjamin A. Ferguson

Benjamin A. Ferguson 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).

  • Dynamic test system for sewing threads
    Patent number: 4798152
    Abstract: A fiberoptic bundle has one end disposed in the bed of a sewing machine in opposition to the stitch formation region below the throatplate. A strobe light for periodically illuminating the region and a camera for recording visual images of the region are coupled to the opposite end of the fiberoptic bundle. The end of the fiberoptic bundle within the sewing machine bed may be provided in guidepaths for viewing the stitch formation region from different viewing directions, preferably 90.degree. apart. A load cell is disposed on the side of the sewing machine for recording tension transients in the thread en route to the needle.
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: January 17, 1989
    Assignee: Celanese Fibers, Inc.
    Inventors: Frank H. Simons, Benjamin A. Ferguson