Abstract: The invention relates to a system (S) for dispensing a product, comprising a pump (P) with a flexible pumping bellows, a lower-end flexible tubular wall section of which is automatically assembled on a chimney of a rigid end piece by interlocking of two complementary hooks, ensuring a sealed connection by pressing together of two complementary annular surfaces.

Abstract: Some embodiments are directed to a valve, including a rigid end piece that defines a center; a rod at the center of the end piece defining an axis; and a flap, wherein the flap is in one piece and has a flexible wall situated opposite a free end of the rod, the flexible wall is perforated by an orifice concentric with the end of the rod, the orifice has a contour substantially homothetic with that of the contour of the end of the rod in a plane perpendicular to the axis of the rod, the orifice has a surface below a projected surface of the end of the rod in the plane, the flap is connected to the end piece by a non-deformable fixed connection, and the flexible wall presses against the end of the rod at any point of its surface in contact with the end.

Abstract: Some embodiments are directed to a valve made up of a rigid wall and a flap. The flap has a non-perforated flexible and deformable peripheral region situated facing the rigid wall. The rigid wall is perforated by at least one orifice situated facing the peripheral region. The flap is joined to the rigid wall by a non-deformable fixed connection. The peripheral region has a substantially conical shape before mounting with a large base and a small base and an inner face on the inner side of the cone. The peripheral region exhibits a deformation following the pressing of the inner face of the large base against the rigid wall in a assembled position.

Abstract: Some embodiments are directed to a valve, including a rigid end piece that defines a center; a rod at the center of the end piece defining an axis; and a flap, wherein the flap is in one piece and has a flexible wall situated opposite a free end of the rod, the flexible wall is perforated by an orifice concentric with the end of the rod, the orifice has a contour substantially homothetic with that of the contour of the end of the rod in a plane perpendicular to the axis of the rod, the orifice has a surface below a projected surface of the end of the rod in the plane, the flap is connected to the end piece by a non-deformable fixed connection, and the flexible wall presses against the end of the rod at any point of its surface in contact with the end.

Abstract: Some embodiments are directed to a valve made up of a rigid wall and a flap. The flap has a non-perforated flexible and deformable peripheral region situated facing the rigid wall. The rigid wall is perforated by at least one orifice situated facing the peripheral region. The flap is joined to the rigid wall by a non-deformable fixed connection. The peripheral region has a substantially conical shape before mounting with a large base and a small base and an inner face on the inner side of the cone. The peripheral region exhibits a deformation following the pressing of the inner face of the large base against the rigid wall in a assembled position.

Abstract: The present invention relates to a tube having a dispensing head and a flexible skirt. The skirt and the dispensing head include a single wall manufactured in a single injection-molding operation in an injection mold. According to the invention, the wall is made of a material whose base constituent is a high-density polyethylene (HDPE) or a mixture of polymers, at least one of which is a high-density polyethylene representing from 5% to 100% by weight of the polymers constituting the wall. The present invention also relates to a process for manufacturing such a tube.

Abstract: The present invention relates to a tube having a dispensing head and a flexible skirt. The skirt and the dispensing head include a single wall manufactured in a single injection-molding operation in an injection mold. According to the invention, the wall is made of a material whose base constituent is a high-density polyethylene (HDPE) or a mixture of polymers, at least one of which is a high-density polyethylene representing from 5% to 100% by weight of the polymers constituting the wall. The present invention also relates to a process for manufacturing such a tube.

Abstract: The invention concerns a tube comprising a wall made of C4-C10 linear ethylene-olefin copolymer or a mixture of C4-C10 linear ethylene-olefin copolymer having a melt index ranging between 3 and 10 g/mn, and a density ranging between 0.880 g/cm3 and 0.935 g/cm3 inclusive. The skirt has a mid-height wall thickness ranging between 0.30 and 10 mm inclusive, and a length between 40 and 200 mm inclusive. Furthermore, the skirt and the dispensing head are made in a single injection molding operation in an injection mold. The invention is useful for making tube-like packages.

Abstract: The invention concerns a tube comprising a wall made of C4-C10 linear ethylene-olefin copolymer or a mixture of C4-C10 linear ethylene-olefin copolymer having a melt index ranging between 3 and 10 g/mn, and a density ranging between 0.880 g/cm3 and 0.935 g/cm3 inclusive. The skirt has a mid-height wall thickness ranging between 0.30 and 10 mm inclusive, and a length between 40 and 200 mm inclusive. Furthermore, the skirt and the dispensing head are made in a single injection molding operation in an injection mold. The invention is useful for making tube-like packages.

Abstract: The invention concerns in particular a mold for injection molding of a flexible tube, said mold comprising as molding tools, a nozzle receptacle, an impression and a core, housed in a stack of plates. The invention is characterized in that said molding tools have pairs of respective conical support surfaces, through which the tools are centered and aligned with one another, each support surface being formed by a portion of tools deprived of transverse mobility.

Abstract: A packaging for fluid product such as a cream or a paste, has a flexible tube (1) provided with a dispensing neck (11), and a convenience closure system (2), including an annular base (20) fixed to the tube (1) on the neck side (11), and a top (21) mobile relative to the base (20). The neck (11) is formed by the wall (10) of the tube which converges towards the main axis (X) of the tube in the direction of the opening (100) with a relatively large radius with respect to its circumference, and the base (20) is engaged in the opening (100) of the tube, and causes the neck (11) to be radially stretched, and is locked relative to the opening along the main axis (X).

Abstract: A packaging for fluid product such as a cream or a paste, has a flexible tube (1) provided with a dispensing neck (11), and a convenience closure system (2), including an annular base (20) fixed to the tube (1) on the neck side (11), and a top (21) mobile relative to the base (20). The neck (11) is formed by the wall (10) of the tube which converges towards the main axis (X) of the tube in the direction of the opening (100) with a relatively large radius with respect to its circumference, and the base (20) is engaged in the opening (100) of the tube, and causes the neck (11) to be radially stretched, and is locked relative to the opening along the main axis (X).

Abstract: The invention concerns in particular a mould for injection moulding of a flexible tube, said mould comprising as moulding tools, a nozzle receptacle (1), an impression (2) and a core (3), housed in a stack of plates (P4, P5, P6, P7). The invention is characterised in that said moulding tools (1, 2, 3) have pairs respective conical support surfaces (101, 201, 301, 102. 302), through which the tools are centred and aligned with one another, each support surface being formed by a portion of tools deprived of transverse mobility.