Sidel Participations

Laurent Penet

Michel Boukobza

Mikael Derrien

Pierrick Protais

Sylvain Meillerais

Mikaël Derrien

Christophe Bunel

Francois Leterc

François Leterc

The invention relates to a process for production of a container by blowing or blowing-stretching within a production unit comprising a mold and a nozzle which is designed to close the mold hermetically. The process comprises a sequence of forming with a blowing phase and a phase of degassing. The degassing phase comprises spacing the nozzle from the mold in order to interrupt the hermetic closure. The spacing of the is nozzle carried out (i) after the beginning of the degassing phase, when the pressure in the interior of the container has dropped and has reached an intermediate pressure which is lower than the pressure at the end of the forming sequence, and is between 14 and 3 bars or (ii) after completion of the blowing phase, and within an interval of time of between 0 and 200 ms after the stoppage of the injection of gas into the container.

Method for producing a plastic container

Disclosed is a molding unit for the forming of a container provided with a hollow recess, this molding unit including: a mold provided with a lateral wall defining a cavity and provided with a pocket that comes out into the cavity; and a boxing device. The boxing device includes: an insert mounted in translation relative to the lateral wall between a retracted position in which the insert is retracted into the pocket, and a deployed position in which the insert projects into the cavity outside of the pocket; an actuator integral with the insert and provided with a piston; and an added sleeve, mounted in a complementary recess made in the lateral wall and attached to it, and in which the piston is mounted in translation.

Molding unit for containers, equipped with a boxing device having an added sleeve

Mold base including a base wall and a peripheral side wall which is connected to the base wall by a fillet, this mould base ending with a peripheral upper edge and including ribs forming cavities for grooves for strengthening the base of a container to be formed and which each straddle the fillet, this mould base also including decompression vents hollowed out of the moulding face and which include, for each rib, at least one pair of shallow side channels which extend on either side of the rib and open, at an upper end, on to the peripheral upper edge.

Mould base provided with decompression channels opening on to a peripheral upper face

Molding unit () for the forming of a container () provided with a hollow recess (), comprising:

Molding unit for containers, equipped with a boxing insert with air circulation

A mold () for manufacturing a container () having a body () and a bottom (), including: an annular peripheral base () defining a positioning plane (); an arch () which extends concavely toward the inside of the container () from the base (), the mold () including: a wall () having an inner surface () forming the cavity of the body () of the container () and having an opening therethrough, the wall () having an edge () forming the cavity of the positioning plane (); a mold bottom () which is moveably mounted relative to the wall (), the mold bottom () having an upper surface () forming the cavity of the arch (), and a skirt () having an outer radial extension that is strictly lower than an inner radial extension of the positioning plane ().

Mold having an offset parting line for manufacturing containers having increased stability

Container (), obtained by blow molding or stretch blow molding of a blank made of plastic material, which comprises a body (), a shoulder () in the extension of the body () at an upper end thereof, and a neck () in the extension of the shoulder (), the shoulder () being articulated between two stable positions, namely a deployed position in which the shoulder () projects from the body (), and a retracted position in which the shoulder () is at least partially retracted into the body (), the shoulder () being articulated in order to be able to adopt, in addition to the deployed position and the retracted position, a third stable position, intermediate between the deployed position and the retracted position.

Stackable container including a shoulder with three stable positions

Container made of plastic material comprising a body and a petaloid bottom () extending the body from a periphery (), the bottom () comprising a bottom wall () that is generally convex toward the exterior, from which feet () protrude that define vertices () jointly forming a seat inscribed within a seating circle having a diameter (B) whose ratio is less thanwith respect to the diameter (A) of the periphery (), the feet () being spaced apart by portions of the bottom wall () forming hollow valleys () that extend radially from a central zone () of the bottom to the periphery (), each valley () comprising two adjacent sections, namely:

Double-valley petaloid container bottom

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.

Container comprising an arched base having a star-shaped cross-section

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 A transverse extension A of the seating plane and a transverse extension B of the body, measured near the bottom, are such that 

Flattened container comprising an arched bottom with square seat

A thermoplastic container, in particular a bottle, made by blow-molding or stretch blow-molding of a heated preform and including a bell-shaped convex base with its concavity facing outward and provided with reinforcing impressions projecting inward and radiating around a central recess, the impressions having a trapezoid shape with its smaller dimension located toward the center of the base; the impressions include respective arches which form convex trapezoid segments with concavity facing inward and extending from the seat to the central recess by being connected thereto immediately proximate the upper end of the central recess.

Container, in particular a bottle, made of thermoplastic material

The invention relates to a mold base () for a mold that is used for the blow molding or stretch-blow molding of thermoplastic containers () having a petaloid-shaped base. The mold base () includes several cavities () separated by radiating ridges () with concave crests (), the bases () of the cavities () being distributed along a circular contour. As seen radially on either side of the deepest point thereof, each cavity () is defined towards the exterior by a curved surface portion () having a circular arc radial cross-section and towards the interior by a broken-plane surface portion () with at least two slopes that intersect the curved surface portion () at a straight edge (). The plane (T) which contains the aforementioned edge () and which is tangent to the curved surface portion () is perpendicular to the axis () of the mold base. Moreover, the portion of plane () adjacent to the curved surface portion () has a slope (a) of between 12&#xb0; and 8&#xb0; in relation to the tangent plane (T).

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Octeville sur Mer, France

Laurent Penet