Abstract: The invention is concerned with a process of making a package of pressurized fluid, said package having an inner container of plastics and a shell of non-extensible material. A tube of flexible plastics is filled with a gas-containing fluid (e.g., beer), and sealed along two parallel sealing zones, spaced from each other by a distance less than the length of the seals, and cut along the seals thereby forming a filled container. This latter is immediately enclosed in a stiff outer shell or sleeve, open at its ends, the filled container's seams being wholly within the shell so that the portions of the container accessible at the ends of the shell are seamless.
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
Abstract: In a packing container of the type comprising two sealing joints crossing each other whereby a sealing joint forms a sealing fin in which the packaging material is joined inside to outside, a ripping strip or thread is provided adjacent the inside of the sealing fin and with a portion thereof accessible from the exterior of the container.
Type:
Grant
Filed:
April 28, 1975
Date of Patent:
June 7, 1977
Assignee:
Tetra Pak Developpement SA
Inventors:
Ruben Rausing, Gert Nedstedt, Hakan Holmstrom, Lars-Erik Palm, Stjepan Stefan
Abstract: The invention is concerned with a packing machine for forming a packaging material web, using a number of movable moulds joined together to form an endless track and means for pressing the web into the moulds.
Type:
Grant
Filed:
April 28, 1975
Date of Patent:
April 12, 1977
Assignee:
Tetra Pak Developpement SA
Inventors:
Franz Soukup, Tore Ingvar Larsson, Veine Bernt Borg
Abstract: Two parts of foam plastics are connected together by heating a portion of the first part so that it will melt, while the corresponding portion of the second part is kept at a considerably lower temperature, preferably room or ambient temperature. After the heating of the first portion the parts are immediately brought together, whereby a surface layer of the second part rapidly melts, whereupon the second part serves as a heat dissipating means to provide a rapid hardening of the molten portions. After the two parts have been put together, a pressure applying means can be pressed against the joint formed between the parts.
Abstract: A method for making, filling and sealing a packing container in which the container has a lug provided in one end plate which can be partially removed to provide a filling opening and which can be reclosed and sealed in the end plate after filling.
Abstract: A composite container structure for fluent materials such as a liquid which is composed of an external cylindrical sleeve made from a relatively rigid material and an internal cylindric liner of plastic material for receiving the liquid. The internal liner terminates in a hemi-spherical bottom within the sleeve and the upper portion of the liner which projects beyond the sleeve has a dome-shaped configuration which terminates in a central inturned threaded neck forming a filling and pouring opening that is closed by an externally threaded plug portion of a screw type cap.
Abstract: The invention, relating to cylindrical or prismatic, disposable containers for liquids, which containers have top and bottom end closures, comprises forming an end closure from a disk which is fixed to an end opening region of the container body by fusing together the common contact surfaces of the disk and said region or by means of a heat-activatable bonding agent.
Type:
Grant
Filed:
February 11, 1974
Date of Patent:
January 20, 1976
Assignee:
Tetra Pak Developpement SA
Inventors:
Lars C. Carlsson, Goran K. Larsson, Jan F. Palsson, Hans A. Rausing