Abstract: A process for adjusting the quantities of a liquid or paste food or pharmaceutical product dosed and dispensed by a doser-dispenser (20) in which the weight of at least every nth one of the recipients (101) filled by the same doser-dispenser (20) with a dosed quantity of the product (102) is measured, the number n being an integer between 1 and 1000. Each weight value measured is compared with a predetermined standard value and at least one of the end-of-stroke positions of the doser piston of the doser-dispenser (20) is adjusted step by step and during the operation of the doser-dispenser (20), in the sense of increasing or decreasing the stroke of the doser piston when the difference between the actual weight measured and the difference between the actual weight measured and the predetermined standard weight exceeds a limiting value. The adjustment is continued stepwise until the difference disappears.

Abstract: Forming apparatus for forming hollow articles from a thermoplastic web wherein a mold block and a counter-mold block are respectively provided with the same number of forming chambers and cylindrical cavities. Each cylindrical cavity contains a forming punch having an inactive top portion and an active bottom portion, which active bottom portion is suitable for penetrating vertically into the corresponding forming chamber. The inactive portion of each forming punch extends over an axial height that is less than the maximum width of the punch. Each forming punch is surmounted by a guide piston which slides in sealed manner inside the corresponding cylindrical cavity of the counter-mold block. The annular space beneath the guide piston is suitable for communicating periodically with a source of compressed gas via at least one link duct.

Abstract: In the doser-dispenser, the doser-piston 28 is carried by a first control tube 2 and the valve 32a forming with the central passage 32b of said piston 28 an intake valve 32 is situated on the side of the supply chamber 25 and is carried by a second control tube 35 guided in the first tube 2 and extending beyond the lower end of the latter. Each tube 2, 35 is surrounded by and integral with a bellows 6, 38 of which the inside is connected permanently to the outside atmosphere, the top end of the bellows being fixed either to housing 3 or to the lower end of the first tube 2. The second tube 35 with its intake flap 32a is controlled outside of the housing 3 by means of the piston 36 of a jack.

Abstract: The invention relates to a group of receptacles comprising at least two rows of receptacles (P), each receptacle comprising an upper flange (C) and being substantially spaced from the neighboring receptacles in its zone situated below the flange, and the receptacles being secured to one another in the region of their upper ends by their flanges, characterized in that it comprises in the region of the bottoms (F) of the said receptacles at least one thin and essentially rigid reinforcing strip (B) extending in the direction of the said rows and adhesively bonded locally to the bottoms of the receptacles of two adjacent rows.

Abstract: The invention relates to a multi-layered thermoplastic container 1 opened by the partial peeling back of a multi-layer top 6 which has been heat-sealed onto the edge 3 of the container 1 including a peeling tab 7. The peeling tab 7 has a scalloped area cut into its edge 3 in such a way as to delimit a grip cavity which is open toward the side of the top 6 and of the edge 3, and, facing the area where the internal sheet 9 of the top 6 and the internal layer 4 of the container 1 meet. The intermediate sheet 10 has a tearing edge enabling the internal sheet 9 to be torn.

Abstract: A doser-dispenser has a single doser unit which is associated with at least two dispenser units. The outlet of the dosing chamber of the doser unit is connected in parallel to each of the dispensing chambers of at least two dispenser units. The active volume of the dosing chamber holds at least two whole doses of product to be dispensed through the two distinct dispenser units. A synchronization device which coordinates the movements of the doser-piston and of the intake flap, with a result that, during delivery of a first dose of product out an dosing chamber, only the ejection valve of the first dispenser unit is open, that, during delivery of the second dose of product, only the ejection valve of the second dispenser unit is open, and so on.

Abstract: The invention concerns a method and device for sterilizing a packaging installation for food or pharmaceutical products. The sterilizing device comprises, on the one hand, at least one row of discharge tubes adapted to apply a heat-resistant sheet and obturating the base of a tunnel to be sterilized, against the lower end of the outlet tubulures of a metering/dispensing device, and on the other hand, at least one row of perforating members adapted to perforate the sheet and to create a passage therethrough for a sterilizing fluid while the discharge tubes and the outlet tubulures grip the heat-resistant sheet.

Abstract: The invention relates to a device for producing and positioning a label on a thermoformed container. The device includes, inside a thermoforming station including a molding unit, at least one row of upwardly open forming chambers, a vertically movable supporting table supporting the molding unit, an individual band of labels for every forming chamber, means for at least partially cutting the labels in order to detach them from their individual band, a storage roll of master band mounted in fixed bearings, a cutting unit for cutting the master band longitudinally, a supporting table on which is installed the longitudinal cutting unit, and a tension roller applied against the master band.

Abstract: A process for regulating the heating of a thermoplastic band used in a station for thermoforming upwardly open containers, the process being characterized in that, in a zone of the softened thermoplastic band, zone surrounded by a mesh of rigidified matter, the degree of deformation of this zone under the action of a predetermined mass is measured, the measured value of the degree of deformation is compared with a predetermined reference value corresponding to a good aptitude to thermoforming, and the heating of the band is regulated as a function of the value of deformation measured so that the deformation corresponds to the reference value.

Abstract: The present invention relates to a method for manufacturing and positioning upon a container, an undercut thermoplastic lid, made from a thermoplastic band.According to the invention, in said method the upper part of the container support as well as the upper part of the container which extends from the upper end of said container support are used as stamping die or male forming mold, and the part of thermoplastic band defined by the lower edge of the bell is applied against the outer face of the upper parts of the container and of its support under a gas excess pressure created inside an enclosure closed and defined by the ball and the thermoplastic band.

Abstract: The invention relates to the packing of liquid products. A piston, moving inside a cylindrical metering chamber, introduces successive quantities of liquid in pots via a tubular nozzle vertically movable, which can be entirely retracted inside the dispensing chamber and which is equipped with a truncated bubble trap for eliminating the gases issued from the liquid.

Abstract: This invention relates to an apparatus for regulating the heating of a thermoplastic band used in a station for thermoforming upwardly open containers, the apparatus being characterized in that, in a zone of the softened thermoplastic band, zone surrounded by a mesh of rigidified matter, the degree of deformation of this zone under the action of a predetermined mass is measured, the measured value of the degree of deformation is compared with a predetermined reference value corresponding to a good aptitude to thermoforming, and the heating of the band is regulated as a function of the value of deformation measured so that the deformation corresponds to the reference value.

Abstract: The device for pre-forming and transfer of a banderole in a container thermoforming installation comprising a molding unit equipped with forming chambers and movable between a high thermoforming position and a low container-stripping position, is characterized in that the introduction unit for introducing the banderole into the forming and cutting chambers is fast, via a support plate, with a banderole pre-winding unit, of which the chambers are aligned axially under the forming chambers. The supporting table of the pre-winding unit is movable synchronously with the supporting table of the unit for longitudinally cutting the master-band into individual bands from which said banderoles are cut. A tension roller is applied against the unrolled portion of the master-band in order to compensate the length variations thereof due to the vertical displacements of the pre-winding units.

Abstract: The invention relates to a device for laying and preforming a section of web in a forming mould which is provided at a container thermoforming station. The shaping member is mounted to move between, on the one hand, a lower position corresponding either to the position of closing (obturation) of the bottom opening in the forming chamber when the moulding unit occupies its thermoforming position, or to the median zone of the forming chamber when said unit occupies the stripping position and, on the other hand, an upper position corresponding to the median zone of said forming chamber when the moulding unit occupies the thermoforming position. An annular slot for passage is defined between the lateral face of the shaping member and certain corresponding parts of the lateral face of the forming chamber in the median zone thereof. The transfer piston is adapted to penetrate in the forming chamber.