Abstract: A method for marking, at the outlet of a forming machine using a laser beam, a marking area on hot glass containers comprises determining the longitudinal and transverse positions of the marking area of each container by positioning a first optical axis of a first light sensor and a second optical axis of a second light sensor in a non-parallel manner to each other, in a detection plane parallel to the conveying plane of the containers, detecting the instant of intersection or disengagement, by a container, of the first optical axis and the instant of intersection or disengagement, by a container, of the second optical axis, and calculating said transverse and longitudinal positions from these instants and in consideration of a known or constant speed of translation of the containers. The method can determine the marking instant for each container running past the laser apparatus.

Abstract: A device for inspecting rings and necks of containers includes a movable element with an outer gauge for checking the outside of the ring of the containers, and an inner gauge for checking the inside of the ring and neck of the containers. The movable element includes a system for measuring the position of the movable element relative to the frame, a system for detecting contact between the inner gauge and the container, a system for detecting contact between the outer gauge and the container, and a processing unit for determining, on the basis of the measurements of the position of the movable element and of the instances of contact between the gauges and the container, whether or not the size of the rings and/or necks of the containers are acceptable, and the types of defects for the containers whereof the sizes of the rings and/or necks are not acceptable.

Abstract: A device for inspecting rings and necks of containers includes a movable element with an outer gauge for checking the outside of the ring of the containers, and an inner gauge for checking the inside of the ring and neck of the containers. The movable element includes a system for measuring the position of the movable element relative to the frame, a system for detecting contact between the inner gauge and the container, a system for detecting contact between the outer gauge and the container, and a processing unit for determining, on the basis of the measurements of the position of the movable element and of the instances of contact between the gauges and the container, whether or not the size of the rings and/or necks of the containers are acceptable, and the types of defects for the containers whereof the sizes of the rings and/or necks are not acceptable.

Abstract: The invention concerns an inspection device for containers (2), that comprises a container inspection head (3) driven in alternate vertical movement via a driving member. According to the invention, the inspection head (3) has at least one driven rod (4) driven directly by friction in alternate vertical movement by the driving member (5).