Abstract: The present invention relates to a crown cap for bottles of the type constituted by a metal plate, although it could be made of another material, having a structural configuration which favors the opening operation of the bottle by means of the removal of the crown cap with the thumb of the hand holding the bottle.

Abstract: The present invention relates to an single piece integral cap, made from a single material, for consuming a liquid from a container. The cap has at least one hole for the exit of liquid from the container and an inlet for the entrance of air into the container. This air inlet incorporates a check valve that allows for the entrance of air but not the exit of liquid. This check valve is built into the body of the cap.

Abstract: A crown cap, configured based on a sheet with a circular body perimetrally presenting, after being adjusted to the rim of the mouth of a bottle, a plurality of folds. The sheet has an extension that extends from the circular body and a first transverse folding line to determine a folded arm with two sections, an upper, external section that extends from the circular body followed by a lower, internal section, located between the external or front section and the bottle. The extension also has a continuous cut on the external section that determines a flap with an inverted U-shaped surface, the continuous cut allowing the flap to bend out of a plane of the external section so that during removal of the cap from the bottle, a distal end of the flap engages an area where the extension extends from the circular body.

Abstract: The lid of a beverage can has two punched segments, breaking of which forms the respective openings for allowing the liquid to flow out and the air to enter. Breaking of these punched parts is performed by pivoting upwards a main ring mounted on a rivet of the lid and, after breaking open the punched part, pushing downwards a secondary lever with cutting pressure pieces which cut into the punched parts so as to cause breakage thereof. The said secondary lever is mounted on the same rivet, having an end segment which rests against a stop of the ring in order to prevent in the rest condition the pressure pieces cutting into the punched parts. In another simpler embodiment, the secondary lever is dispensed with, so that the pressure piece is incorporated along the contour of the associated main ring.

Abstract: The lid of a beverage can has two punched segments, breaking of which forms the respective openings for allowing the liquid to flow out and the air to enter. Breaking of these punched parts is performed by pivoting upwards a main ring mounted on a rivet of the lid and, after breaking open the punched part, pushing downwards a secondary lever with cutting pressure pieces which cut into the punched parts so as to cause breakage thereof. The said secondary lever is mounted on the same rivet, having an end segment which rests against a stop of the ring in order to prevent in the rest condition the pressure pieces cutting into the punched parts. In another simpler embodiment, the secondary lever is dispensed with, so that the pressure piece is incorporated along the contour of the associated main ring.