Abstract: Method of manufacturing a container from a blank of plastic material, within a mold provided with a wall defining a cavity with the impression of the container, and a mold bottom that is movable with respect to the wall between a retracted position and a deployed position in which it extends protruding into the interior of the cavity in order to form a hollow recess in the container. The method includes inserting the blank into the mold; a pre-blowing operation including injecting a fluid under pressure into the blank, at a pre-blowing pressure; a blowing operation including injecting a fluid under pressure into the blank at a blowing pressure that is greater than the pre-blowing pressure; and a boxing operation, initiated prior to the blowing operation, and including moving the movable mold bottom from its retracted position to its deployed position.

Abstract: Method of manufacturing a container (2) by stretch-blow molding in a mold (8) from a blank (3) of plastic material, which comprises the operations consisting of: measuring the pressure prevailing inside the blank (3) during a pre-blowing phase; detecting an instant corresponding to a local minimum pressure in the blank (3); placing in memory the instant at which said minimum pressure occurs as well as the corresponding pressure prevailing in the blank (3); comparing the instant and the pressure of the detected minimum with, respectively, a predetermined instant and pressure of a theoretical minimum pressure; if the measured minimum and the theoretical minimum do not coincide, ordering a modification of at least one of the following parameters: pre-blowing pressure, pre-blowing flow rate, stretching speed, heating temperature.

Abstract: A method for ejecting a vessel (12), carried by a transporting device (10), the vessel (12) being provided with a neck (16) including a mouth (18), the transporting device (10) including: —a mobile support (28); —a gripping mandrel (30) that grips by vertical engagement with the neck (16); —an ejection face (64) mounted on the mobile support (28), the gripping mandrel (30) being mounted vertically slidable relative to the ejection face (64) to allow the gripping mandrel (30) to be extracted from the neck (16) when it slides via contact between the ejection face (64) and a bearing face (24) of the neck (16); characterized in that the bearing face (24) of the neck (16) is formed by a shoulder face that protrudes radially towards the outside relative to the mouth (18) and is arranged under the mouth (18) in the vertical direction.

Abstract: A method for decontaminating caps (2) or necks of containers by electron bombardment, the method including: an operation of the passage or positioning of the caps (2) or necks of containers in front of an electron bombardment window (8), the opening of the caps (2) or necks of the containers facing the window (8); and an operation of electron bombardment of the caps (2) or necks of the containers, during the passage or positioning of the caps or necks of the containers in front of the window (8); the bombardment being carried out by way of a pulsed electric field including a series of electrical pulses of determined frequency, duration and intensity.

Abstract: A device (20) for gripping a container (16) made of a thermoplastic material, includes: a nose (30) having a main shaft (B) which is suitable for axially inserting into the neck (24) of the container (16); a plurality of jaws (46) which are mounted in the nose (30) in a radially mobile manner between a retracted position allowing the free axial sliding of the nose (30) in the neck (24) and an expanded position allowing the immobilization of the neck (24) in relation to the nose (30) by pressing against the inner part of the neck (24); and elements (54) for elastically returning the jaws to their expanded position, wherein the jaw assembly (46) is maintained circumferentially in a determined circumferential position in relation to the nose (30).

Abstract: Container (1) made from plastic material, provided with a body and a base (3) which extends from a lower end of the body, the base (3) including: a peripheral resting surface (5) which defines a flat annular deposition line (6) for the container (1); —a concave dome (9) which extends from the deposition line (6) to the central zone (7); a series of moulded beams (10) in the dome (9) which each radiate from the central zone (7) towards the resting surface (5), each beam (10) including a pair of radial grooves (11) which are moulded in the dome (9) and are separated by a radial rib which projects from the bases (12) of the grooves (11).

Abstract: A device for transporting a hollow body provided with a neck which includes a vertically oriented internal wall, the device including at least elements for gripping the hollow body by engaging with the internal wall of the neck, which are mounted on the lower free end of a rod and movably connected thereto, the rod being mounted to be vertically movable between a high position and a low position, wherein the gripping elements are mounted to be radially movable between a retracted position in which the gripping elements are vertically inserted from top to bottom into the neck, without contacting the internal wall, and a deployed position in which the gripping elements engage the internal wall of the neck, and the change in position of the gripping elements from the retracted to the deployed position and/or from the deployed to the retracted position is actuated by a magnetic field.

Abstract: Container made of plastic material comprising a body and a petaloid bottom (3) extending the body from a periphery (7), the bottom (3) comprising a bottom wall (4) that is generally convex toward the exterior, from which feet (5) protrude that define vertices (8) jointly forming a seat inscribed within a seating circle having a diameter (B) whose ratio is less than 4:5 with respect to the diameter (A) of the periphery (7), the feet (5) being spaced apart by portions of the bottom wall (4) forming hollow valleys (12) that extend radially from a central zone (6) of the bottom to the periphery (7), each valley (12) comprising two adjacent sections, namely: a central section (17) that extends from the central zone (6) of the bottom (3) to a junction zone (18) situated directly below the seating circle, and which has, in a radial plane, a first radius of curvature (C); a peripheral section (19), which extends from the junction zone (18) to the periphery (7), and which has, in said radial plane, a second radius

Abstract: A machine for manufacturing containers from blanks of plastic material, which includes an oven furnished with a plurality of radiation sources for heating blanks as they travel through at a predetermined speed of travel and heating profile, and a programmed control center for modifying the speed of travel and heating profile based on a temperature measurement made on a blank leaving the oven, and a pressure measurement made in the blank during a subsequent blowing.

Abstract: The invention relates to a container made of a plastic material, provided with a body (5) and a bottom (6) extending at a lower end of the body (5), wherein the bottom (6) includes: an annular seat (7) extending substantially away from the body (5) and defining a support surface (8) and an inner annular flange (11) substantially perpendicular to the support surface; a concave arch (13) which extends from an area adjacent to the seat (7) towards a central area (14). The axial dimension H of the flange and the radial dimension L of the support surface are such that: formula (I). 0.6 ? L H ? 1.

Abstract: A container of plastic material, having a body extending along a principal axis and a bottom in the extension of the body at a lower end thereof. The bottom has an annular seat defining a seating plane; and a conical arch that extends from near the seat towards the interior of the container to a central apex, the arch having in transverse cross-section a star-shaped profile inscribed between two circles, the ratio of the diameters of which is greater than or equal to 0.7.

Abstract: Unit (4) for molding preforms (2) that each have a body (15) and a neck (17) extending the body (15), this unit (4) including: a frame (19), —a mold holder (27) secured to the frame (19) and carrying at least one mold body (29) having the impression of the body (15) of the preform (2); mobile equipment (60) including a carriage (61) and a core holder (62) carrying at least one primary core (64A) and one secondary core (64B), the carriage (61) being mounted so as to be movable with respect to the frame (19) between a molding position and a demolding position, this core holder (62) being rotatable with respect to the carriage (61), in the demolding position of the latter, about a rotation axis parallel to the molding axis in order to transpose the cores (64A, 64B).

Abstract: The invention relates to a pack including a group of stackable containers each of which includes a body, a shoulder, a neck, and a bottom defining a recess shaped so as to receive the neck and at least part of the shoulder of an identical underlying container; and a flexible film enclosing the group of containers, said film having bottom openings aligned with each hollow recess. The film closely fits the base of the containers on a bottom contact area that annularly extends around the bottom openings; and the film further has top openings through which the necks extend, the film closely fitting the shoulders of the containers on a top contact area that annularly extends around the top openings.

Abstract: Container of plastic material having a flattened body and a bottom in the extension of the body having peripheral seat defining a seating plane the contour of which has in the same plane a large dimension A1 and a small dimension A2 that is strictly smaller than the large dimension, and an inner annular cheek substantially perpendicular to the seating plane. The bottom having a concave arch that extends from the seat towards a central zone. A height H of the cheek and a width L of the seating plane are such that 0.5 ? L H ? 2.5 . A transverse extension A of the seating plane and a transverse extension B of the body, measured near the bottom, are such that A B ? 0.85 .

Abstract: A device for transporting a hollow body having a neck including an inner vertical orientation wall and a top edge, the device including elements for grasping the hollow body by engaging with the neck's inner wall, which are mounted at the bottom end of a rod and movably connected to the rod, the rod being movably mounted vertically between a high position and a low position. The grasping elements are movably mounted radially between: a retracted position, in which the grasping elements are inserted vertically, from top to bottom, inside the neck, without contact with the inner wall; and a deployed position, in which the grasping elements engage with the inner wall of the neck, wherein changing the position of the grasping elements from the retracted to the deployed position is controlled by the vertical movement toward the bottom of the rod, from the high to the low position.

Abstract: A hollow container, for liquid, made of plastics material, includes a dome-shaped bottom integral with a body, the bottom and body have a single axis of rotational symmetry (Z), the body including a first, upper part and a second, lower part, the second, lower part being integral with the bottom, the first and second parts being connected together by an intermediate zone, the first and second parts each having a substantially concave shape, the concavity being turned towards the axis of symmetry (Z) of the body. The concave shape of the first part is approximately the same as the concave shape of the second part. The intermediate zone has a convex shape, the convexity being turned towards the axis of symmetry (Z) of the body. In a plane including the axis of symmetry of the body, the concavity and the convexity are substantially complementary.

Abstract: A one-piece mould element (3, 7) for a mould (1) for manufacturing containers from blanks of plastic material by blow moulding or stretch blow moulding. The mould element (3, 7) includes a one-piece moulding wall (4, 8) having a raised moulding surface (5, 9) bearing the imprint of at least one portion of a container, the moulding wall (4, 8) having at least one decompression vent (20) extending therethrough, the hole leading, via an inner opening (21), onto the moulding surface (9), which is provided in the form of a slot.

Abstract: A one-piece mould bottom (7) for a mould (1) for manufacturing containers, includes a moulding wall (8) having a raised moulding surface (9) bearing the imprint of at least one portion of a container bottom. The mould bottom (7) includes a cavity (27) integrally formed with the mould bottom (7), defined by a surface casing (29) defined entirely by the mould bottom (7) and including an inner surface (31) of the moulding wall (8), opposite the moulding surface (9) and matching the raised pattern thereof, and a rear surface (32, 33) opposite the inner surface (31). The mould bottom (7) is provided with at least one pair of openings (35; 37) leading into the cavity (27) for circulating a heat-transfer fluid inside the cavity.

Abstract: Method of manufacturing a container (14) from a blank (2) of thermoplastic material having a body (4) extending along a principal axis (A), which comprises: A selective heating step in which the body (4) of the blank (2) is exposed to monochromatic or pseudo-monochromatic infrared radiation, the power of which is modulated along the principal axis (A) of the body (4) in such a way that said body has alternating hot annular regions (4A, 4C, 4E, 4G, 4I), the temperature of which is far higher than the glass transition temperature (Tg) of the material, and comparatively colder annular regions (4B, 4D, 4F, 4H), the temperature of which is close to the glass transition temperature (Tg); A forming step in which a fluid under pressure is injected into the blank (2) thus heated, said step being carried out in free expansion.

Abstract: Container (1) made of plastics material, including a body (5) which extends along a main axis (X), and a base (6) which extends at a lower end of the body (5), the base (6) being provided with protruding feet (7) that are provided with crowns (11) which extend in a common setting-down plane (12), pairs of the feet (7) being separated by recessed grooves (15) which extend radially from a central region (8) of the base (6), each foot (7) having two flanks (17) that each laterally border a groove (15), characterized in that the flanks (17) of two adjacent feet (7) which border one and the same groove (15) form between one another, at the level of the setting-down plane (12) and in a plane transverse to the radial direction of extension of the groove (15), an obtuse angle (A) at the crown.