Abstract: The description relates to an apparatus for the ultrasonic welding of sealing seams on packages for fluid media. The apparatus comprises a sonotrode and an anvil (7) which is situated opposite the front end face of the sonotrode. Both sonotrode and also anvil (7) are adapted for movement on predetermined paths.

Abstract: Flexible packaging material in the form of a sheet or strip for shaping into form-stable, liquid-tight containers through fold forming, thermo-forming or other mechanical processing for shaping the material. The material (10) has a stiffening skeletal layer (11) composed of a mixture of plastic and filler to the amount of between 50 and 80% of the total weight of the mixture, and also at least one outer layer (12; 13) of plastic of the same kind as the plastic in the skeletal layer (11).With the aid of the said outer plastic layers the material is given excellent sealing properties, at the same time as the filler in the skeletal layer (11) can be effectively protected against attack from the contents of the container produced.

Abstract: In a method for the preparation of cheese for distribution, milk is concentrated to a dry matter content corresponding to a desired dry matter content of finished cheese through the separation of whey. The concentrated milk is mixed with additives including a substance capable of forming carbon dioxide upon mixing with lactic acid bacteria occurring naturally in milk. When the concentrated milk/additive mixture is packaged into distribution-ready packagings in which it coagulates to form cheese, the carbon dioxide forms tubular passages in the cheese.

Abstract: A package container fabricated from plastic-coated packaging material includes an upper end wall and a sealing fin that extends across the upper end wall of the container. The sealing fin includes mutually facing material layers between which is located an opening strip. The opening strip includes an inner layer positioned between outer layers that are sealed to plastic coatings of the packaging material, and an intermediate layer positioned between the inner layer and each of the outer layers. The intermediate layer is fabricated from a material whose properties are such that the adhesive bonding strength between all material layers of the opening strip and between the outer layers of the opening strip and the plastic coating of the packaging material is greater than the internally cohesive bonding strength of the intermediate layer.

Abstract: A device for heating plastic plates using contact heat and hot gases which are supplied to the plastic plate to be heated by carrier plates is provided. Therein, two carrier plates are movable relative to each other vertically with respect to their common contact surface. Gas distribution conduits also open in the contact surface. In order that the plastic plates which are to be heated can be removed properly from the carrier plates, so that damage to the heating device is avoided, each contact surface of both carrier plates is surrounded by a frame-like, closed outer edge without mouth openings for the gas distributions conduits.

Abstract: Flexible, creased material in sheet or web form for use in the manufacture of liquid-tight packing containers of good dimensional rigidity includes one or more base layers laminated to one another. The base layer is a mineral-filled thermoplastics material comprising between 50 and 80% calculated on the total weight of the mixture, of an inorganic, particulate mineral filler. The thermoplastic material is chosen among propylene-based polymers with a melt index of between 0.5 and 5 according to ASTM (2.16 kg, 230.degree. C.) and the base layer or base layers are provided with a pattern of crease lines which have been formed by plastic deformation in connection with or immediately after the extrusion of the base layer or base layers.

Abstract: A packing container is disclosed in which an end wall of the packing container has an opening formed therein for emptying the contents of the container. The opening in the end wall is covered by a cover strip which is detachably secured to the end wall. The cover strip and the end wall are formed of a plastic coated metallic material and the cover strip is secured to the end wall along a sealing joint that surrounds the opening. The cover strip is secured to the end wall by surface fusion.

Abstract: Bend lines on packaging material are obtained by creasing, which results in crease lines which are raised on one side of the material. According to the invention the raised parts of the crease lines are removed by mechanical processing, such as by milling, considerably increasing the crease lines' weakening effect on the packaging material and facilitating subsequent bending of the material.

Abstract: Described is a pouring device of plastic material for fitting to the hole of a flowing medium pack, wherein the pouring device (10) has a portion (20) which is openable by means of a tearing line (25). So that packs of widely different configurations and consisting of a wide range of different materials can be produced in such a way as to be sealed and easily openable, the pouring device (10) has at least a bottom portion (20) and a closure portion (21) which are pivotally movably connected together by way of a hinge (22), wherein the tearing line (25) is disposed in the bottom portion (20).The process for the production of such a pouring device is characterised in that a series of blanks which are arranged in succession in a flat condition and which are in line-wise contact with each other are formed from an endless web of plastic material which can be subjected to deep drawing, and rolled up to form a coil, and the blanks are separated off prior to fitting to the hole in the pack.

Abstract: In an opening device for tetrahedral-shaped or parallel piped-shaped packaging containers, a strip of packaging material is provided with tear perforation lines substantially parallel to the longitudinal direction of the strip of material. The tear perforation lines intersecting a transverse seam on the packaging material are located relative to one another such that they converge at a point in a finished packaging container.

Abstract: A method and an apparatus for marshalling objects from one ingoing conveyor to two outgoing conveyors is disclosed. Counting gaps are created by a belt brake operating at a slower speed than the ingoing conveyor. The counting gaps are registered by a pair of photocells, and two gates are maneuvered by a control unit. The gate downstream of the ingoing conveyor is of the single type, and the gate downstream of both of the outgoing conveyors is of the double type. The gates are mechanically interconnected and rotate towards one another in order to marshall the objects onto one or the other of the outgoing conveyors.

Abstract: An apparatus for treating a package container blank with a fluid is disclosed and includes a rotary portion provided with a plurality of chambers for receiving the blanks and a fixed portion having a stator surface that faces the rotary portion. The fixed portion is provided with an arrangement that opens to the stator surface for supplying fluid so that upon successive rotations of the rotary member, the chambers will successively align with the arrangement for supplying fluid so that fluid is thereby supplied to the chambers.

Abstract: An apparatus for folding an edge (11) of a continuous web (10) is disclosed, wherein the continuous web (10) is held against a belt (1) which is twisted through substantially 180.degree. between two wheels (2, 3) to fold over the edge (11) during the twisting action. The belt (1), which is endless, runs over two other wheels (4, 5) in order to return to the wheels (2, 3).

Abstract: A distributing and collecting device for conveyed products includes a wire conveyor, a conveyance-direction sorting guide, a product-distributing device with a distributing vertical conveyor, a first gate and a second gate. The conveyed articles can be tall, thin articles such as drink cartons. The products are sequentially fed by a supply, vertical conveyor through the conveyance-direction sorting guide over the wide conveyor. The conveyance-direction sorting guide can shift the articles from side to side of the wide conveyor in a direction perpendicular to the conveying direction. The articles are fed by the product-distributing device and distributing vertical conveyor to a row in front of the first gate. When a prescribed number of products fills a row, the product-distributing device will move to fill an adjacent row. Just before all rows are filled, the first gate is opened and the products move over the wide conveyor to the second gate.

Abstract: A regulator cone of substantially cylindrical form is disclosed with four generally V-shaped grooves on its outer circumferential surface. Two of the grooves define primary grooves that extend along the entire active length of the regulator cone. The other two grooves define secondary grooves that extend along the portion of the active length of the regulator cone where the primary grooves have their largest cross-sectional area.

Abstract: Forming devices in packaging machines of the type which reforms tubular packaging material of substantially circular cross-sectional configuration into individual package containers of quadrilateral cross-sectional configuration normally consist of pairwise cooperating forming flaps which are of U-shaped cross-section. In order to prevent the packaging material from being pinched between the shank surfaces of the flaps when the flaps are caused to surround the packaging material tube, the shank surfaces are designed to be undulatory, i.e. alternatingly with projections and recesses which fit in one another and guide the packaging material tube into the U-shaped recesses of the flaps without pinching the packaging material tube.

Abstract: Packaging container of a material containing a skeletal layer of plastic and filler mixed into the plastic in a quality of between 50 and 80% of the total weight of the skeletal layer. In order to facilitate the opening of the container the container is provided with a tearing mark incorporated in the packaging material, along which the material in the container must be torn to expose a container opening through which the contents of the container are made accessible. The tearing mark consists of an unbroken recess in the skeletal layer or a similar linear recess weakening the material with a depth of penetration of approximately 10-30% of the total thickness of the skeletal layer.

Abstract: A heating apparatus for heating thermoplastic packaging materials to allow the materials to be heat-sealed, formed, or reformed includes two nozzles which supply heated air to the packaging materials, a suction box which sucks the heated air away from the packaging materials after the air has heated the materials, and a recirculation duct which recirculates the heated air from the suction box back to an intake of the nozzles.