Patents by Inventor Pierre R. Swart

Pierre R. Swart 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: 5435439
    Abstract: The invention relates to a blank arranged to be folded into an inner wrapper for wrapping a bundle of articles such as cigarettes within a pack. The blank comprises a fixed portion which is anchored relative to the pack and a displaceable portion which is arranged to lift at least one of the cigarettes clear of the bundle of cigarettes while facilitating subsequent removal thereof from the pack. The displaceable portion comprises a cover flap for covering the accessible ends of the article which are exposed on opening of the pack, and a lifting strip joined to the cover flap. The cover flap is arranged to tear away from the lifting strip only once at least one of the cigarettes has been lifted clear of the bundle of cigarettes under influence of the lifting strip.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: July 25, 1995
    Assignee: Tobacco Research & Development Institute Limited
    Inventor: Pierre R. Swart