Patents by Inventor Malcolm Constant

Malcolm Constant 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).

  • Publication number: 20050119101
    Abstract: The present invention is concerned with a machine which manufactures substantially U-shaped handles for attachment to bags or bag making stock so as to provide a bag with substantially U-shaped handles attached. The substantially U-shaped handles are manufactured from paper strip which is divided longitudinally into further paper strips which are fed to separate former drums. Here, substantially U-shaped handles are formed and attached to bags, thereby producing handled bags. The substantially U-shaped handles are concurrently attached to either side of the preformed bags or bag making stock. The former drum makes use of a mechanical gripper means and a raised rail guide so as to hold the substantially U-shaped handles to the former drum and maintain the folded position of the legs of the handle once folded over. The preformed bags are supplied by a removable bag supply unit or alternatively a continuous feed of preformed bags or bag making stock.
    Type: Application
    Filed: August 12, 2004
    Publication date: June 2, 2005
    Applicant: Dempson Packaging, Ltd.
    Inventor: Malcolm Constant