CONTAINER, PREFORM ASSEMBLY AND METHOD AND APPARATUS FOR FORMING CONTAINERS
First Claim
1. Preform assembly for blow moulding a container, comprising at least a first and a second preform, wherein the first preform is positioned inside the second preform before blow moulding the preforms into the container, wherein each preform has a body forming portion having a wall thickness of less than about 8 millimetres, preferably less than about 6 mm.
1 Assignment
0 Petitions
Accused Products
Abstract
Preform assembly (1) for blow moulding a container (20), comprising at least a first (2) and a second (3) preform, wherein the first preform (2) is positioned inside the second preform (3) before blow moulding the preforms into the container, wherein each preform has a body forming portion having a wall thickness of less than about 8 millimetres, preferably less than about 6 mm. A container blow moulded from the preform assembly and a method and an apparatus for forming the preform assembly are also disclosed.
-
Citations
17 Claims
- 1. Preform assembly for blow moulding a container, comprising at least a first and a second preform, wherein the first preform is positioned inside the second preform before blow moulding the preforms into the container, wherein each preform has a body forming portion having a wall thickness of less than about 8 millimetres, preferably less than about 6 mm.
- 8. Container blow moulded from a preform assembly comprising a first preform in a second preform, a first layer of the container formed from the first preform and a second layer, outside the first layer, formed from the second preform, wherein the plastics material of the first preform has been stretched further for forming the first layer than the plastics material of the second preform for forming the second layer.
- 13. Method for forming a preform assembly for blow moulding a container, wherein a first preform is injection moulded and a second preform is injection moulded, both with a wall thickness of less than about 8 mm, preferably less than about 6 mm, wherein the first preform is inserted into the second preform and/or the second preform is provided over the first preform.
-
15. Apparatus for providing a preform assembly, comprising at least one first mould cavity for forming a first preform and at least one second mould cavity for forming a second preform, further comprising at least one transfer device for moving a first preform into a second preform and/or a second preform over a first preform, wherein preferably the apparatus comprises a cooling chamber for allowing the preforms to at least partially cool, preferably such that the second preform is at least partially crimped onto the second preform.
Specification