The present invention relates to a closed-head drum (10) with inserted thin-walled inliner (22) of multilayer plastic film for storing and transporting liquid or free-flowing filling materials. In order to improve the use of liners in closed-head drums, and to facilitate in particular the handling for the users such as the filling and emptying operators, so as to allow the closed-head drum (10) with liner (22) to be handled in precisely the same way as a closed-head drum without a liner, the present invention provides for the liner surface to adhere, or be adhesively bonded in a detachable manner, to the inner wall of the drum by virtue of a vacuum being created in the intermediate air space between the inner wall of the drum and liner surface and by thermal activation by means of hot air injection into the interior of the inliner.

A tamper indicating preassembly or kit of parts is provided for protection of a container closure plug receivable in a container opening having a groove or recess formed thereabout. A support ring comprises a radially inwardly directed lip engageable in the groove or recess. A masking membrane may be sealed at its periphery to the support ring. The support ring may further comprise a frangibly attached, inwardly extending, flange or projection. When the plug is received in the container opening and the support ring lip is received in the container opening groove or recess, the masking membrane covers up an upper end of the plug and/or the inwardly extending flange or projection overlaps the upper end of the plug. A protective outer cover may also be provided.

A plastic keg includes a liner including a neck portion and a body portion. A lid having an opening is disposed at least partially over the liner. A retainer is secured to the neck portion of the liner and aligned with the opening in the lid, the retainer including external threads. A locking ring having internal threads is secured to the external threads of the retainer. The internal threads of the locking ring and the external threads of the retainer include a ratcheting mechanism permitting attachment of the locking ring to the retainer and inhibiting removal of the locking ring from the retainer, the locking ring contacting the lid. A beer keg valve assembly includes a port having a head portion having a convex upper surface and at least one leg extending downwardly from a lower surface. The leg includes a stop surface projecting radially outward further than the head portion. A piston defines an opening. A spring biases the port against a periphery of the opening defined by the piston to seal the convex upper surface of the head portion over the opening.

The present invention relates to a closed-head drum (10) with inserted thin-walled inliner (22) of multilayer plastic film for storing and transporting liquid or free-flowing filling materials. In order to improve the use of liners in closed-head drums, and to facilitate in particular the handling for the users such as the filling and emptying operators, so as to allow the closed-head drum (10) with liner (22) to be handled in precisely the same way as a closed-head drum without a liner, the present invention provides for the liner surface to adhere, or be adhesively bonded in a detachable manner, to the inner wall of the drum by virtue of a vacuum being created in the intermediate air space between the inner wall of the drum and liner surface and by thermal activation by means of hot air injection into the interior of the inliner.

A closed-head drum and inliner for storing and transporting liquid or free-flowing filling materials is disclosed. In order to improve the use of liners in closed-head drums, and to facilitate the handling for the users such as the filling and emptying operators, so as to allow the closed-head drum with liner to be handled in the same or similar way as a closed-head drum without a liner, the disclosed technology can enable the liner to abut, attach to, adhere to, and/or to adhesively and/or detachably bonded to inner surfaces of the drum by virtue of a vacuum being created in the space between the inner surfaces of the drum and the outer surface of the liner.

Provided is a cap structure for a vessel, which is coupled with the vessel to open/close the vessel. The cap includes an inner cap coupled with an upper end portion of the vessel, an outer cap fitted around an outer diameter of the inner cap, a circular part inserted into the mounting part, in which the circular part includes protrusions, which are smoothly curved, and first detachable protrusions formed at a position perpendicular to the protrusions, a deformation member to deform a shape of the circular part, and a component inserted into the inner cap and the circular part and having a first detachable groove circumferentially formed at a lower portion of an outer-diameter surface of a coupling part formed on the component. The cap opens/closes the vessel by fixedly attaching the component to the cap disassembled from the vessel or separating the component from the cap.