Patents by Inventor Nils R. F. Berg

Nils R. F. Berg 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).

  • Packaging container with a pouring spout
    Patent number: 4248351
    Abstract: A packing container with an unfoldable pouring spout which has an inherent tendency to assume an unfolded position when the container has been opened is disclosed. The ability of the pouring spout to tend to assume the unfolded position is achieved by having certain folding lines of the container weaken the material of the container to an appreciably greater extend than certain other folding lines of the container. The relative difference in weakening of the material caused by the folding lines utilizes the elasticity of the packing material to urge the pouring spout to unfold.
    Type: Grant
    Filed: June 20, 1978
    Date of Patent: February 3, 1981
    Assignee: Tetra Pak International AB
    Inventor: Nils R. F. Berg