Abstract: A gripper device for gripping the neck of a hollow body from the outside, which gripper device includes an annular body supporting at least two gripper parts each having its own bearing face, said gripper parts being movable substantially radially and constrained by an elastic device in such a way that the gripper parts are able to occupy a first radial position in which they bear against a buffer of the annular body with their bearing face projecting into the annular body, and a second radial position in which they are pushed back with their bearing face bearing against the exterior wall of the neck of a hollow body engaged in the annular body. The bearing faces of the gripper parts are bowed in the overall shape of an arc of a cylinder.

Abstract: An individual support device (5) for a container provided with a neck (6), including a support member (4) that engages inside the neck (6) and support elements (7) which are elastically retractable in the radial direction and bear with friction against the internal wall of the neck (6). The support member includes a substantially axisymmetric cylindrical base (8) having a peripheral channel (9) defined between a core (10) and an external wall (11) perforated by at least one row of apertures (12) of circular contour, balls (13) forming the support elements (7), arranged in at least one row in the channel (9) opposite respective apertures (12), the balls (13) having a diameter greater than the diameter of the apertures (12), and elastic return mechanism (14) between the core (10) and the balls (13) such that the balls are pushed back into the respective apertures (12) and project outside thereof.

Abstract: A gripper device for gripping the neck of a hollow body from the outside, which gripper device includes an annular body supporting at least two gripper parts each having its own bearing face, said gripper parts being movable substantially radially and constrained by an elastic device in such a way that the gripper parts are able to occupy a first radial position in which they bear against a buffer of the annular body with their bearing face projecting into the annular body, and a second radial position in which they are pushed back with their bearing face bearing against the exterior wall of the neck of a hollow body engaged in the annular body. The bearing faces of the gripper parts are bowed in the overall shape of an arc of a cylinder.

Abstract: The present invention relates to an individual support device (5) for a container provided with a neck (6), capable of supporting said container by its neck (6), comprising a support member (4) which is capable of being engaged inside the neck (6) of the container and which comprises support elements (7) which are elastically retractable in the radial direction and capable of bearing with friction against the internal wall of said neck (6), characterized in that the support member (4) comprises: a substantially axisymmetric cylindrical base (8) comprising a peripheral channel (9) defined between a central core (10) and an external wall (11) forming a skirt surrounding said core (10) at a radial distance and perforated by at least one row of apertures (12) of circular contour, a plurality of balls (13) forming the aforementioned support elements (7), of equal number to that of the apertures (12) and arranged in at least one row in said channel (9), being located opposite respective apertures (12), the balls