An air-tight storage container system has a container having an open top and a container closure unit configured to be placed over the top. The closure unit has a series of stacked, interlocking components, including a handle member, a flexible deformable gasket member, a snap inner piece, and a bottom member. When these closure unit components are interconnected and the closure unit itself is positioned atop the container, the closure unit is pushed and rotated, held within the container to establish an air-tight seal within the container.

A method of manufacturing a hydraulic plug includes providing a shell comprising a circumferential wall, a sealed end, an open end and a cylindrical cavity opening to the open end is provided. The open end of the shell is wider externally than the sealed end. A head of an expander is inserted into the cavity. The head of the expander has a convex contact surface which is rounded in an axial direction (A) of the cavity. A region of the shell adjacent its open end is plastically deformed causing material from the circumferential wall of the shell to be displaced radially inward around the head of the expander to form a constricted opening retaining the expander within the cavity. The deforming reshapes an internal surface of the cavity from a cylindrical to a non-linear shaped ramp leading up to a constricted opening.

A method of manufacturing a hydraulic plug includes providing a shell comprising a circumferential wall, a sealed end, an open end and a cylindrical cavity opening to the open end is provided. The open end of the shell is wider externally than the sealed end. A head of an expander is inserted into the cavity. The head of the expander has a convex contact surface which is rounded in an axial direction (A) of the cavity. A region of the shell adjacent its open end is plastically deformed causing material from the circumferential wall of the shell to be displaced radially inward around the head of the expander to form a constricted opening retaining the expander within the cavity. The deforming reshapes an internal surface of the cavity from a cylindrical to a non-linear shaped ramp leading up to a constricted opening.

The invention relates to a self-extracting stopper which can be accommodated inside the neck of the bottle, and which does not require a corkscrew or any other tool for the extraction thereof, formed by an assembly of parts preferably made of a plastic material and which, once assembled, permit a bottle or container to be stoppered. The face of the drum (8) and the surface of revolution of the flexible cylinder (4) can also carry marks that are engraved or in shallow relief. In this way, the assembly of the self-extracting stopper is formed by six elements and a cork cover (1), a nut (2), a flexible cylinder (5), a drum (8), a screw (12) and a wing nut (15), all of which are disposed and assembled according to their axial geometry, and which permit a method and process to be provided whereby bottles and/or containers can be stoppered or opened manually or automatically, and said self-extracting stopper being reusable.

The invention relates to a self-extracting stopper which can be accommodated inside the neck of the bottle, and which does not require a corkscrew or any other tool for the extraction thereof, formed by an assembly of parts preferably made of a plastic material and which, once assembled, permit a bottle or container to be stoppered. The face of the drum (8) and the surface of revolution of the flexible cylinder (4) can also carry marks that are engraved or in shallow relief. In this way, the assembly of the self-extracting stopper is formed by six elements and a cork cover (1), a nut (2), a flexible cylinder (5), a drum (8), a screw (12) and a wing nut (15), all of which are disposed and assembled according to their axial geometry, and which permit a method and process to be provided whereby bottles and/or containers can be stoppered or opened manually or automatically, and said self-extracting stopper being reusable.

A short rotation safety lock for containers has a fixed internal structure (1) linked to locking cap (3) and includes a clamping frame (12) that acts over an annular cordon or protrusion (61,62) of the container (6) of application. This internal structure (1) gives rotating assembly (4) to an external structure (2) which rotation movement, limited by a rotation limiter device (5), determines the movement of some mobile blocking members (24) between an active position behind said grip fingers (13) and a passive position in said intermediate spaces (14). In some variations a safety system of the kind of a seal that links the upper wall (23) of the external structure (2) with the internal structure (1) is incorporated. The detachable sector (70) acts as a safety seal and, even after the detachment, the link member (76) maintains it as cover of the upper part of the lock. The bottle (200) has an annular entrance (204) compatible with the grip position of the safety lock.

A short rotation safety lock for containers has a fixed internal structure (1) linked to locking cap (3) and includes a clamping frame (12) that acts over an annular cordon or protrusion (61,62) of the container (6) of application. This internal structure (1) gives rotating assembly (4) to an external structure (2) which rotation movement, limited by a rotation limiter device (5), determines the movement of some mobile blocking members (24) between an active position behind said grip fingers (13) and a passive position in said intermediate spaces (14). In some variations a safety system of the kind of a seal that links the upper wall (23) of the external structure (2) with the internal structure (1) is incorporated. The detachable sector (70) acts as a safety seal and, even after the detachment, the link member (76) maintains it as cover of the upper part of the lock. The bottle (200) has an annular entrance (204) compatible with the grip position of the safety lock.

The invention discloses a container stopper capable of being rapidly opened and closed, comprising a columnar plug body, the plunger body includes a stopper rod, the bottom portion of the stopper rod is provided with a base, the shape and size of the base correspond to the shape and size of the straight section of the container mouth or the minimum cross section of the container, the upper part of the base is provided with an annular plug body, a foldable and deformable elastic seal cartridge is arranged between the annular plug body and the base, the annular plug body and the base can both move mutually along the axial direction of the container in the container mouth under the effect of an external force to press the elastic seal cartridge, and the seal ring and the base together form a sealing layer which realizes the rapid closing of the container.

The invention discloses a container stopper capable of being rapidly opened and closed, comprising a columnar plug body, the plunger body includes a stopper rod, the bottom portion of the stopper rod is provided with a base, the shape and size of the base correspond to the shape and size of the straight section of the container mouth or the minimum cross section of the container, the upper part of the base is provided with an annular plug body, a foldable and deformable elastic seal cartridge is arranged between the annular plug body and the base, the annular plug body and the base can both move mutually along the axial direction of the container in the container mouth under the effect of an external force to press the elastic seal cartridge, and the seal ring and the base together form a sealing layer which realizes the rapid closing of the container.

An auxetic structure consistent with the present disclosure may include a core cell, capable of rotation, including a plurality of first rib sections, and a plurality of second rib sections. The first rib sections may be transverse to a longitudinal axis of the auxetic structure and at least one of the first rib sections may extend from the core cell. The second rib sections may be transverse to a transverse axis of the auxetic structure and at least one of the second rib sections may extend from the core cell.