Abstract: A re-usable device for closing bags and the like, which may be sealed in a locked configuration by applying a security seal (24). The device (1) comprises two elongate parts (2, 3) the may be superimposed on each other, The first part (2), which is attached along one side of the mouth of a bag to be closed, is provided with a series of locking pins (6, 6') that--on closing the bag--pass into corresponding orifices (9) in the second part the which is attached along an opposite side of the mouth of the bag. The device is locked in this bag closed configuration by means of locking elements (13, 13') that slide longitudinally along internal passages (8, 8') in the second part until the reach a position where they lock the locking pins (6, 6'). The locking elements (13, 13') may be sealed in such configuration by applying a security seal (24).

Abstract: A sealing system of the type in which a locking pin is received in a cavity containing a tooth that cooperates with the pin to prevent withdrawal of the pin. The object of the invention is to provide this type of seal but which is at the same time both of high security and simple to manufacture. In the system of the invention, the cavity (2) has two openings (14, 16) adjacent to each other and separated by the base 17) of the tooth (18). The cavity is otherwise totally closed and its inner wall (21), which extends to the bottom of the cavity, is curved under the base (17) of the tooth. This permits manufacture using an injection mould having a plate (39) provided with a fixed part (40) and a part (41) rotatably mounted on the fixed part to define therebetween the male mould portion for moulding a cavity with a tooth.

Abstract: A one-piece injection molded tamperproof security seal is used for sealing the ends of tubular members, such as are found in some types of electricity meters. The seal is compact, it may be applied where there is limited space, and it has a high degree of inviolability. The seal comprises a plug adapted to be received in the tubular end, blocking means on the plug adapted for cooperation with engagement means on the tubular member, first locking means on the plug, and a closure portion which is hingeably attached to the plug and provided with second locking means. The seal has an open configuration in which the closure portion is remote from the plug portion and a sealed configuration in which the closure portion is folded over the plug with the first and second locking means in mutual locking cooperation.