Abstract: The invention relates to a container conveyor for conveying a container to a container inspecting station. The container has a flanged portion surrounding its opening. The conveyor includes a rotary disc having a plurality of holders arranged around its circumference for holding the containers. The holders include a driving roller and a pair of rotation rollers. The rollers contact the container to provide a three-point connection with the flanged portion of the container. Each roller has a recessed portion formed about its periphery. The recessed portions engage the flanged portion of the container to nip the container.

Abstract: This invention relates to an inspection system for a container made of synthetic resin, including a first container conveying station provided with a plurality of container holders arranged around the circumference of a rotary disc with predetermined spaces; a container feeding station for feeding the containers to a container conveying passage of the first container conveying station with the interval equal to that between the adjacent holders; a first inspecting station for inspecting the existence of the heat resistant resin of the container; a second inspecting station for inspecting the wall thickness of the container; a second container conveying station provided with a container receiving end portion for receiving the container determined to be a good product by the inspections of the first and second inspecting stations and conveying the container externally of the first container conveying station; and a first container discharging station for discharging a container judged to be a faulty product by

Abstract: This invention relates to an inspection system for a container made of synthetic resin, comprising: a wall thickness inspecting apparatus having a projector for emitting an inspection light guided from a light source inserted into a container made of synthetic resin and provided with one end opened towards the wall of the container, a light receiver arranged in opposition to the projector at an external portion of the container for receiving the inspection light passing through the wall of the container and converting the received light into an electric signal, and an arithmetic operation device for calculating the wall thickness of the container on the basis of the output signal from the light receiver; a first container conveying station provided with a plurality of container holders arranged around the circumference of a rotary disc with predetermined spaces; a container feeding station for feeding the containers to a container conveying passage of the first container conveying station with the interval eq