INTEGRALLY BLOW-MOULDED BAG-IN-CONTAINER HAVING INTERFACE VENTS OPENING TO THE ATMOSPHERE AT LOCATION ADJACENT TO A BAG'S MOUTH; PREFORM FOR MAKING IT; AND PROCESSES FOR PRODUCING THE PREFORM AND BAG-IN-CONTAINER
First Claim
1. An integrally blow-moulded bag-in-container (2) comprising:
- an inner layer forming the bag and an outer layer forming the container, and a mouth fluidly connecting the volume defined by the bag to the atmosphere, said container having at least one interface vent fluidly connecting the interface between inner and outer layers to the atmosphere.said at least one vent runs parallel to the interface between inner and outer layers and opens to the atmosphere at a location adjacent to, and oriented approximately coaxially with said bag-in-container'"'"'s mouth.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention is an integrally blow-moulded bag-in-container (2) and preform (1) for making it. The bag-in-container (2) has an inner layer (21) forming the bag and an outer layer (22) forming the container, and a mouth (5) fluidly connecting the volume defined by the bag to the atmosphere. The container further has at least one interface vent (3) fluidly connecting the interface (14) between inner and outer layers to the atmosphere, wherein the at least one vent (3) runs parallel to the interface between inner and outer layers (21) (22) and opens to the atmosphere at a location (4) adjacent to, and oriented coaxially with the bag-in-container'"'"'s mouth (5). Processes for manufacturing a preform and a bag-in-container as defined above are defined too.
-
Citations
22 Claims
-
1. An integrally blow-moulded bag-in-container (2) comprising:
-
an inner layer forming the bag and an outer layer forming the container, and a mouth fluidly connecting the volume defined by the bag to the atmosphere, said container having at least one interface vent fluidly connecting the interface between inner and outer layers to the atmosphere. said at least one vent runs parallel to the interface between inner and outer layers and opens to the atmosphere at a location adjacent to, and oriented approximately coaxially with said bag-in-container'"'"'s mouth. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A method for producing a bag-in-container having
an inner layer forming the bag and an outer layer forming the container, and a mouth fluidly connecting the volume defined by the bag to the atmosphere, said container having at least one interface vent fluidly connecting the interface between inner and outer layers to the atmosphere, said at least one vent runs parallel to the interface between inner and outer layers and opens to the atmosphere at a location adjacent to, and oriented approximately coaxially with said bag-in-container'"'"'s mouth, comprising the following steps: -
providing a preform having an integral preform obtained by injection moulding one layer on top of the other; bringing said preform to blow-moulding temperature; fixing the heated preform at the level of the neck region with fixing means in the blow-moulding tool; and blow-moulding the heated preform to form a bag-in-container. - View Dependent Claims (18, 19)
-
-
20. A method for manufacturing a preform, having an integral preform obtained by injection moulding one layer on top of the other comprising the following steps:
-
injection moulding the preform'"'"'s inner layer onto a core; injection moulding the preform'"'"'s outer layer onto the inner layer; and extracting the thus formed preform from the core; wherein said core is provided at the base thereof with at least one pin suitable for forming an interface vent running parallel to the interface between said first and second layers and opening to the atmosphere at a location adjacent to, and oriented approximately coaxially with the preform'"'"'s mouth. - View Dependent Claims (21, 22)
-
Specification