Abstract: A closure for sealing threaded bottles, jars or similar containers, comprises a metallic cap and a plastic collar having an upper attachment part adapted to releasably engage said cap. The collar further includes an interior security ring spaced from the collar and attached thereto by means of fracturable integrally formed links and at least one non-fracturable connecting web. A plurality of claws adapted to engage the undersurface of the threaded portion of the container extends from the inner surface of the security ring.

Abstract: A circular tamper-proof closure device and process for sealing threaded bottles, jars, and similar containers are disclosed. The closure comprises a sealing ring containing a peripheral lip, a wedge-shaped security ring, retaining bridges to join the sealing ring to the security ring, an annular stop to limit the movement of the security ring, and a metallic cap with a rim that is wedged into the sealing ring between the lip and the security ring. The closure is fastened to the threaded bottle by securing the sealing ring to the bottle and forming threads on the metallic cap.

Abstract: A mushroom-like closure cap for containers under pressure, such as commercially used glass champagne bottles, made of aluminum or alloys of aluminum, particularly having a volume of 0.5 l, impermeable to gas, easy to reclose, prevents escape of foam when the seal cap is opened and a sharp pressure drop takes place. The mushroom-like closure cap (3) of aluminum metal is affixed to a mushroom stem (4) which has a sealing surface (6) on part B closing the bottle mouth and is corrugated (5) on its part (A) protruding into the bottleneck.