| 摘要 |
PURPOSE:To enable to perform the check of a receptacle for a leak under an empty condition without the enclosure of the receptacle for filling, by hermetrically enclosing the opening of the receptacle to be measured by means of a receptacle retainer equipped with air feed and exhaust pipes. CONSTITUTION:A receptacle retainer 22 consists of a base 24, equipped with a packing material 28 at an upper edge and an air feed pipe 30 at a center of an under surface, and a block body 26 having a conduit 32 connecting to the pipe 30. The block body 26 of the receptacle retainer 22 is inserted into a receptacle 14, and a packing material 28 is brought into contact with a rim 18 by means of a press plate 18. After air is fed by a pump 36 and a given time has elasped, a difference between the pressure before air is fed and at an air feed time is detected by a detecting circuit 40 to inspect the presence of a leak. |
