Abstract: This invention relates to a turnable electrode which is positionable in contact or proximity with a specified portion of an article which is being transported, the electrode having in its periphery at least one access portion shaped in conformity with the contour of the specified portion of the article, the electrode being turnable as the article is transported forward to bring the access portion into contact or proximity with the specified portion of the article.

Abstract: This invention relates to a method of and an apparatus for checking sealed containers for pinholes in a vacuum which containers have enclosed therein a vaporizable material, such as a glucose injection solution, distilled water for injection, milk or oil, or a sublimable substance, such as naphthalene (hereinafter referred to collectively as a "vaporizable substance"). With this invention, the vaporizable substance adhering to the sealed container and remaining in a checking chamber is vaporized first by a vaporizing suction means communicating with the checking chamber, and the vaporized substance is cooled and collected by a cooling heat exchanger to eliminate before checking the disturbances due to the vaporizable substance and to thereby assure accurate detection of pinholes.

Abstract: A method of and a system for checking sealed containers for pinholes with contents enclosed therein by placing a sealed container between first and second electrodes, impressing voltage across the first electrode and second electrodes to generate two discharge current flows on the container and between the first electrode and second electrode respectively, detecting the discharge currents individually and converting the difference between the detected values to a detection signal value.