Container for beverages and corresponding production method
OwnerEmanuela COVIinventor
Life of this patent
Estimating the term…
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.
Claims14
1-11. (canceled)
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 said container, said internal preform being associated internally with said external preform in order to define with said external preform a hollow space, wherein said internal preform has at least one through hole, made in a neck portion thereof, which connects the internal volume of said internal preform with said hollow space.
Container for beverages comprising an external keg and an internal bag associated internally with said external keg, said external keg and said internal bag being obtainable from respective preforms, defining between them a hollow space, and a closing device provided with a valve unit to control the delivery of said beverage and coupled with said external keg and said internal bag in order to close said container, wherein said internal bag has at least one through hole, made in a neck portion thereof, which extends in a radial direction with respect to a longitudinal axis of said internal bag, and connects the internal volume of said internal bag with said hollow space.
Method to make a container for beverages having an external keg and an internal bag associated internally with said external keg, wherein it provides:
- to insert an internal preform in an external preform coupling them mechanically to each other by means of mechanical coupling members so as to define an assembled set in a single body;
- to feed said assembled set to a blowing machine;
- to introduce air, or fluid under pressure into said internal preform so as to deform it, and at the same time to deform said external preform to obtain an internal bag and an external keg having a defined volume and/or conformation;
- said method providing, during the introduction of the air or fluid under pressure, to make the air that is in said hollow space between said internal preform and said external preform flow to the outside of said hollow space through at least one through hole present in a neck portion of said internal preform.
Dependencies are inferred from the claim text.