Patent ID: 6367312
Filing Date: 2002-04-09
Classification: G01M

Abstract:
A leakage inspecting device for a sealing stopper unit in a mouth portion of a container on a conveyer, comprising:a positioning member including an inner stand wall formed therein, the inner stand wall having a diameter larger than a boundary surface between the mouth portion of the container and a bush attached to the mouth portion and configured to make a watertight contact with the mouth portion of the container; a first placing unit configured to place the positioning member on the mouth portion of the container being transported on the conveyer at an inspection spot and align an axis center of the positioning member to an axis center of the mouth portion of the container; a second placing unit configured to place the inner stand wall of the positioning member onto an upper surface of the mouth portion and situate the inner stand wall on an outer periphery of the mouth portion; an injection unit configured to inject water into the inner stand wall and a concave portion formed in the mouth portion connected to the inner stand wall; a measuring unit including a probe configured to measure electric conductivity of the water, the measuring unit being configured to insert the probe into the water injected into the inner stand wall and the concave portion of the mouth portion and judge whether liquid content is leaking from the container; a water supply unit configured to supply wash water to the probe; and an air supply unit configured to blow one of dry air and hot air to the probe; wherein the water supply unit and the air supply unit are positioned in an ascending portion of the probe at the inspection spot.