Patents by Inventor Ingvar Erling Nilsson

Ingvar Erling Nilsson 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).

  • Container closure
    Patent number: 4078688
    Abstract: A container having a neck portion provided with an inwardly turned downwardly extending flange element is engaged with a cap device having a depending skirt portion which engages the flange element of the neck of the container so that when the container is filled with an aerated beverage or the like the pressure thereof is exerted against the cap device so as to enhance the sealing engagement of the cap device in the neck of the bottle.
    Type: Grant
    Filed: February 1, 1977
    Date of Patent: March 14, 1978
    Assignee: Tetra Pak Developpement SA
    Inventors: Ingvar Erling Nilsson, Lars Harald Nystrom
  • Closing arrangement for packing containers
    Patent number: 3999678
    Abstract: A closing arrangement made of plastic material for packing containers includes a tubular part which is anchored in an opening provided in the pour opening of the container and a cap member attached to the tubular part at one side and which includes a pull ring extending from the other side. The cap member is also attached to the tubular part by means of a frangible region which is broken as the pull ring is lifted, and the cap is automatically retained in the open position to facilitate pouring of the contents from the container.
    Type: Grant
    Filed: December 1, 1975
    Date of Patent: December 28, 1976
    Assignee: Sobrefina SA
    Inventors: Rolf Lennart Ignell, Ingvar Erling Nilsson