Patents by Inventor Justin D. McDonald

Justin D. McDonald 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).

  • ULTRASONIC DOUBLE FOLD SEAL
    Publication number: 20100209022
    Abstract: A double fold seal having an ultrasonic stitch is provided as a closure means for a bag formed from synthetic resin material, and especially a woven synthetic resin material. A transverse heat seal is created using an ultrasonic welder, for example, and at least two flaps formed outboard from the seal. The flaps are folded over one of the bag panels and ultimately over the heat seal so as to create a bag closure that is strong and leak resistant.
    Type: Application
    Filed: August 18, 2009
    Publication date: August 19, 2010
    Inventors: Keith C. Gilmore, Justin D. McDonald