A container comprising a female coupling configured to receive and establish a friction seal with a male coupling of an external device for inserting or extracting a liquid to or from the container after the friction seal is established between the female and male couplings.

Containers are provided and include a container body having an opening extending into a hollow interior, and a cap extending across the opening. The cap has an inlet port with an inlet valve configured to couple to a fluid source such that fluid can be delivered through the inlet valve to pressurized the hollow interior of the container body. The cap also has an outlet port with an outlet valve having a cracking pressure at which the outlet valve is configured to move from a closed configuration to an open configuration to dispense fluid from the hollow interior, and a closing pressure at which the outlet valve is configured to move from the open configuration to the closed configuration to prevent fluid from passing therethrough. The cracking pressure is greater than the closing pressure.

A plastic beer keg includes an outer container and a liner having a neck portion and a body portion. A removable lid is secured over an opening of the container to enclose the liner. A locking ring secures the neck portion to the lid. The neck optionally includes a neck ring which interlocks with the opening through the lid to prevent relative rotation therebetween. The locking ring optionally includes ratcheting teeth engaging ratchet teeth on the lid to prevent inadvertent loosening of the locking ring. The liner may be suspended from the lid by the neck when empty.

A self-propelling container having: a top; a bottom; a plurality of vertical walls extending between the bottom and the top; an inner bag for holding contents to be dispensed; a female coupling configured to receive and establish a friction seal with a male coupling of an external device for inserting or extracting the contents to or from the container after the friction seal is established between the female and male couplings; and at least one independent panel positioned inside the container; a compressible element associated with the at least one independent panel wherein during filling of the inner bag the compressible element is compressed, thus causing the at least one independent panel to exercise pressure onto the inner bag, and thus, helping to empty the inner bag.

A portable beverage dispensing system is disclosed. The portable beverage dispensing system includes a reservoir container with an internal volume for holding a beverage. The beverage dispensing system also includes a pressure unit accessory and a dispensing mechanism accessory that detachably and interchangeably attached to accessory attachments on the reservoir container that are in fluid communication with the internal volume of the reservoir container. The pressure unit accessory includes a pressure regulator and a removable gas canister for pressurizing the reservoir container and dispensing the beverage through the dispensing mechanism accessory.

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.

A beverage container includes an outer container having a first mouth portion, a fitting, and a replaceable component arranged in an inner space of the outer container. The fitting includes an attachment portion attached to the first mouth portion of the outer container, a second mouth portion, an annular portion extending outward from the second mouth portion and connecting the second mouth portion and the attachment portion, and a beverage extraction pipe extending toward a bottom of the outer container. The replaceable component includes a sealing member slidable along a longitudinal direction of the beverage extraction pipe and being in annular contact with an outer surface of the beverage extraction pipe at an installation position, a tubular body holding the sealing member and being supported by the beverage extraction pipe via the sealing member located at the installation position, and a bag for containing a beverage attached to the tubular body.

A beverage container includes an outer container having a first mouth portion, a lid member attached to the outer container, and a replaceable component attached to the lid member. The lid member includes an attachment portion attached to the first mouth portion, an upper pipe portion arranged outside the outer container, an annular portion extending outward from the upper pipe portion and connecting the upper pipe portion and the attachment portion, and a lower pipe portion extending downward from the annular portion. The replaceable component includes a sealing member slidable with respect to the lower pipe portion and being in annular contact with an outer surface of the lower pipe portion at an installation position, a tubular body holding the sealing member and being supported by the lower pipe portion via the sealing member located at the installation position, and a bag for containing a beverage attached to the tubular body.

A vessel for liquids is described, made of plastic material, comprising: a delivering tap composed of a main body; a covering device equipped with two turrets for entering gas and exiting liquid into/from the body; two pistons operatively coupled to the turrets for controlling their opening and closing; two bottoms operatively coupled with the pistons for controlling their operation; and a tampering-preventing seal placed on the covering device in order to prevent an undesired external access to the turrets with an integrated degassing device for degassing the vessel at the end of its life favouring its correct recycling; and a neck of the vessel connected to the delivering tap and equipped with internal and external forgery-preventing means to cooperate with the tampering-preventing seal.

The present invention is directed to a portable container for a beverage, such as beer, from a Sixth barrel or Cornelius keg. The portable container is specifically designed for storing, cooling, transporting and dispensing a beverage, such as beer. The portable container has a self-contained container of CO.sub.2, a regulator, and a tap for the keg.