Abstract: A two-part closing arrangement for packing containers of plastic material comprises an internally threaded tubular body of a soft plastic secured to an inturned lip at the mouth of the container and into which is screwed a stopper-like cap also of plastic material and which is provided with a down-turned flange overhanging the mouth to be gripped by the user for applying and removing the cap.

Abstract: A method of manufacturing packing containers from a thin flexible plastic material intended to be enclosed within an outer shell of stiffer material for reinforcing purposes in which a plastic tube is extended from an annular extrusion die into which a filling pipe extends. The filling pipe is divided into a number of branch pipes arranged in a row and each of these branch pipes is entered into a corresponding longitudinally extending section of the interior of the extruded tube established between parallel spaced sealing zones formed between the front and back walls of the extruded tube which is expanded and thereafter somewhat flattened for this purpose. Longitudinally spaced transverse sealing zones are then formed across the flattened and filled tube sections and cuts are then made through the longitudinally and transversely extending seaing zones thus dividing them into individual filled containers.

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.

Abstract: A one-use bottle-shaped container has a cylindrical shell portion, a base portion which has an inturned flange continuous with the shell portion, a central disc sealed to the flange and a bottleneck-shaped upper portion terminating in an opening considerably smaller than the cross-sectional area of the cylindrical portion.

Abstract: A cap type structure for closing a pour-out opening in the top of a packing container wherein the pour-out opening terminates in an outwardly turned flange portion which engages and interlocks with an inwardly turned flange portion on the cap which is made of plastic material and a sealing ring of thermo-plastic material is located between the inter-engaging flange portions. The cap is removed by means of a pull tab which is secured to the flange portion of the cap which causes the flange to be torn off.

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: An interlocking system includes a number of individual key elements such as an identity card each of which has a pre-determined code marking consisting of a number of index elements arranged to form a pattern. At least one interlocking device adapted to co-operate with the key elements includes a release element sensitive to radiation as a function of the radiation pattern pre-determined by the code marking on the key element. The interlocking device comprises a radio-active radiation source, a detector and means such as a slot for interposing the coded key element between the radiation source and the detector.