Abstract: A preform assembly for producing a container includes an external preform and an internal preform, each configured to form respectively an external drum and an internal bag of the container. The internal preform can be internally associated with the external preform along a central longitudinal axis so as to define a hollow space with the external preform.

Abstract: A spring device for a valve unit for a beverage container includes at least one elastic element provided with a first terminal part associable with, or defining during use, a mobile head of the valve unit, and with a second terminal part associable during use with a support element provided in said valve unit. The elastic element is provided with at least one guide device directed in a direction of compression and release of said elastic element.

Abstract: A valve unit for a container includes a valve body and a spring device disposed inside it and provided with an upper plate. The valve body has a top wall provided with a central delivery aperture and a mating sealing lid. The sealing lid and upper plate include reciprocal coupling members.

Abstract: A closing unit associable with a keg type container suitable to contain a beverage, and consisting of two cooperating coaxial containers, wherein the external container has anchoring means, or a threaded portion, comprising a valve assembly and a closing device, which can be stably anchored to the threaded portion and configured to reciprocally position with respect to each other the valve assembly and the containers.

Abstract: The invention concerns a gripping and closing device for a keg-type container (10) for liquids, said gripping and closing device comprising a closing and tapping cap (16) and a gripping handwheel (15) which is suitable to handle and move the container (10), said container (10) comprising a drum (13) containing a bag and being able to cooperate with said closing cap (16), said closing cap (16) being suitable to selectively close an entrance (25) of the container (10) allowing the tapping. The invention also concerns a container (10) for liquids comprising the gripping and closing device (11), a method to assemble a gripping and closing device (11) and a method to assemble a container (10) for liquids comprising the method to assemble a gripping and closing device (11).

Abstract: A pre-form assembly to make a container (110) for beverages comprises an external pre-form (12) and an internal pre-form (14), each configured to form respectively an external drum (112) and an internal bag (114) of the container (110). The internal pre-form (14) is associable internally with the external pre¬form (12) so as to define with the external pre-form (12) a hollow space (13), and the internal (14) and external (12) pre-forms comprise respective coupling members (30, 34, 38) in correspondence with respective neck portions (22, 26) suitable to reciprocally position the external pre-form (12) and the internal pre-form (14) along a longitudinal axis (X).

Abstract: A set of preforms to make a container for beverages, comprising an external preform and an internal preform, each intended to form respectively an external keg and an internal bag of the container. The internal preform is associated internally with the external preform in order to define with the external preform a hollow space. The external preform and the internal preform have respective coupling members suitable to clamp the external preform and the internal preform with respect to each other in a desired reciprocal position.

Abstract: A valve assembly for a beverages container with two components, of which one external container and one internal container, closed at the upper part by a closing device, comprises a valve body made in a single body and a spring device, wherein a mobile sealing unit is present between the valve body and the spring device, configured to selectively open and close a passage aperture of the valve assembly.

Abstract: A spring device comprises at least one distribution ring and at least two elastic elements configured like a zig-zag spring connected to the at least one distribution ring. The zig-zag spring elements are disposed equidistant around a longitudinal axis of the spring device and extend along respective axes parallel to its longitudinal axis.

Abstract: A closing device is described for a container for fluids, comprising a valve unit provided with a passage aperture for the fluid and a body, wherein the body comprises shutter means and is mobile with respect to the passage aperture to alternatively define at least a closed configuration in which the shutter means close the passage aperture, and an open configuration in which the shutter means are distanced from the passage aperture.

Abstract: A set of preforms to make a container for beverages comprises an external preform and an internal preform, each intended to form respectively an external keg and an internal bag of the container. The internal preform is associated internally with the external preform so as to define with the external preform a hollow space and also has at least one through hole, made in a neck portion thereof.

Abstract: A valve assembly for a beverages container with two components, of which one external container and one internal container, closed at the upper part by a closing device, comprises a valve body made in a single body and a spring device, wherein a mobile sealing unit is present between the valve body and the spring device, configured to selectively open and close a passage aperture of the valve assembly.

Abstract: A closing unit associable with a keg type container suitable to contain a beverage, and consisting of two cooperating coaxial containers, wherein the external container has anchoring means, or a threaded portion, comprising a valve assembly and a closing device, which can be stably anchored to the threaded portion and configured to reciprocally position with respect to each other the valve assembly and the containers.

Abstract: A set of preforms to make a container for beverages comprises an external preform and an internal preform, each intended to form respectively an external keg and an internal bag of the container. The internal preform is associated internally with the external preform so as to define with the external preform a hollow space and also has at least one through hole, made in a neck portion thereof.

Abstract: A set of preforms to make a container for beverages, comprising an external preform and an internal preform, each intended to form respectively an external keg and an internal bag of the container. The internal preform is associated internally with the external preform in order to define with the external preform a hollow space. The external preform and the internal preform have respective coupling members suitable to clamp the external preform and the internal preform with respect to each other in a desired reciprocal position.

Abstract: A closing device is described for a container for fluids, comprising a valve unit provided with a passage aperture for the fluid and a body, wherein the body comprises shutter means and is mobile with respect to the passage aperture to alternatively define at least a closed configuration in which the shutter means close the passage aperture, and an open configuration in which the shutter means are distanced from the passage aperture.