Patents Assigned to Tetra Pak Development
  • Patent number: 4593730
    Abstract: Described is a filling apparatus for filling packaging means with quantitatively controllable amounts of a flow substance, having a pump piston (54) which is movable in a cylinder (50), wherein the feed end and the discharge end of the pump chamber (9) are respectively closed by valves (4, 5) and, to avoid foaming, the discharge end at least partially dips into the upwardly open packaging means (10). Also provided is a drive means (31, 37) with cam member (28).
    Type: Grant
    Filed: July 13, 1984
    Date of Patent: June 10, 1986
    Assignee: Tetra Pak Development
    Inventors: Wilhelm Reil, Ulrich Deutschbein
  • Patent number: 4462202
    Abstract: Apparatus for shaping liquid containing packages is disclosed. The apparatus comprises a take-off conveyor which includes a multitude of support parts which form a conveyor belt. The support parts are movable with respect to each other and point transversely outwardly from the conveyor path. A plunger moves out from the surface of the support part towards a side wall of the package to indent the same at a certain portion of the package formation cycle. A switch cam plate or the like causes movement of the plunger between a contact position in which the plunger contacts and indents a portion of the package and another position in which the plunger does not engage the package.This application is a continuation, of application Ser. No. 198,161, filed Oct. 17, 1980, now abandoned.
    Type: Grant
    Filed: April 14, 1983
    Date of Patent: July 31, 1984
    Assignee: Tetra Pak Development, S.A.
    Inventor: Wilhelm Reil
  • Patent number: 4312450
    Abstract: A dispensing container includes a pouring aperture in its upper wall near a fold line which lies between it and the adjacent side wall. The side wall includes a cut line which forms a flap hinged along the above-mentioned fold line. A layer of plastic material extends across the pouring opening and hinged flap for sealing the container until the contents are to be used. When the plastic material is removed, the pouring aperture is opened and the hinged flap folds out of the plane of the side wall to form a pouring lip which directs the flow of contents away from the side wall.
    Type: Grant
    Filed: February 14, 1978
    Date of Patent: January 26, 1982
    Assignee: Tetra Pak Development S.A.
    Inventor: Wilhelm Reil
  • Patent number: 4196035
    Abstract: The invention relates to a method for applying plastics strips to an optionally partially perforated supporting material web which has been made impervious to liquid through plastics coating of the entire surface area and in which the web is conveyed from a wind-off reel to a wind-up reel or to a packaging machine and to an apparatus for performing this method.
    Type: Grant
    Filed: May 10, 1978
    Date of Patent: April 1, 1980
    Assignee: Tetra Pak Development S.A.
    Inventor: Wilhelm Reil
  • Patent number: 4151024
    Abstract: A method is disclosed for fabricating packing containers comprised of a heat-shrinkable material. A web or blank of the material is heated on one side to an extent such that the material acquires a tendency to assume a tubular shape. Overlapping longitudinal ends of the web or blanks are heat and pressure sealed to form a tubular member. The ends of the tubular member are folded inwardly under the effect of heat to form flange-like portions to which end plates may be attached to form the packing container.
    Type: Grant
    Filed: March 16, 1977
    Date of Patent: April 24, 1979
    Assignee: Tetra Pak Development
    Inventor: Ingemar W. Ohlsson
  • Patent number: 3973048
    Abstract: The invention provides a method for sterilizing liquids by brief heating, comprising exposing a pressurized stream of already sterilized liquid to a pressure reduction, an evaporable partial quantity of the liquid being induced to assume vapor form while the remaining part of the liquid quantity is cooled, introducing vapor thus formed into a compressor in which said vapor is compressed and is heated due to said compression and is mixed with and condensed in a stream of pressurized liquid which is supplied to the compressor and, by being mixed with ward condensate, is raised to a temperature which is equal to or exceeds that required for sterilization, and maintaining the sterilization temperature of the said heated and pressurized stream of liquid for the length of time required for sterilization, whereupon the liquid is subjected to the initially-mentioned pressure reduction during which an evaporable part quantity of the liquid is evaporated and is again subjected to the treatment cycle while the remaining
    Type: Grant
    Filed: December 20, 1974
    Date of Patent: August 3, 1976
    Assignee: Tetra Pak Development SA
    Inventor: Soren Elof Mauritz Sollerud
  • Patent number: 3971192
    Abstract: The packing machine of the invention molds a first material web into a line of connected U-shaped sections; joins a second material web to the first material web and seals them together; fills the resulting cavities with an intended filling material; seals the filled cavities, and finally separates the line into individual filled packages.
    Type: Grant
    Filed: May 27, 1975
    Date of Patent: July 27, 1976
    Assignee: Tetra Pak Development
    Inventors: Franz Soukup, Bengt A. Rosberg, Tore I. Larsson, John-Erik Brunlid