Package
AssigneeBerry Superfos Randers A/S
InventorsJohan Rosell, Karl-Johan Lidbrandt, Robert Axell
Life of this patent
Estimating the term…
Abstract
A package (10) is provided and comprise a frame (15) formed from a plastics material and a wall (20) formed from a paper or paper-based material.
Claims20
A hybrid material package comprising an injection moulded frame formed from a plastics material and a wall formed from a paper or paper-based material, the frame comprises an upper ring and a lower ring joined by a stem, the lower ring includes a single inwardly extending limb, a free end of which provides an injection point which is offset from a generally central axis of the frame for allowing overmoulding of the frame onto the wall.
An overmoulding process to form a hybrid material package comprising an injection moulded frame formed from a plastics material, a side wall formed from paper or paper-based material and a base formed from paper or paper-based material,
- the frame comprises an upper ring and a lower ring joined by a stem, the lower ring includes a single inwardly extending limb, a free end of which provides an injection point which is offset from a generally central axis of the frame for allowing overmoulding of the frame onto the wall when the mould is closed;
- the package is formed by taking a wall blank and a base blank and placing them into a female mould cavity,
- areas of paper or paper-based material are selected to be compressed when the male part of the mould is closed onto the female part, whereby when the mould is closed the paper or paper-based material is compressed on well-chosen surfaces to ensure that the plastics material does not extend over it in the overmoulding step,
- the paper or paper-based material does not take up the entire mould, the room that remains is filled with plastics material, so the plastics frame is fused to the paper or paper-based material and becomes a structural member of the package.
Dependencies are inferred from the claim text.