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US 10,119,328 B2Granted
Frame structure for a window and a method for making a frame structure
AssigneeVKR Holding A/S
InventorsRuben Sinnathamby, Michael Melsen, Kristian Ørnsvig Nielsen
Life of this patent
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Abstract
The invention relates to a frame structure, such as a window sash or a frame for a window or door, comprising a core made from at least one core member made from expanded polystyrene (EPS) with a density of 80-200 kg/m3 and a shell of polyurethane (PUR) encasing the core. The core may include a plurality of core members, some of which may be made from a different material.
Claims4
A method for making a window frame structure, comprising the steps of:
- providing a core including at least one core member;
- wherein the at least one core member comprises expanded polystyrene with a density of 80-200 kg/m3 and further comprises one of a hole or canal,
- placing the core in a mould;
- moulding polyurethane around the core thereby encasing the core;
- and
- filling the at least one of a hole or canal at least partially with polyurethane.
3 more elements
A method for making a frame structure of a window or door having a transparent sheet element, comprising the steps of:
- providing a core including at least one core member;
- wherein the at least one core member comprises expanded polystyrene with a density of 80-200 kg/m3 and further comprises one of a hole or canal,
- placing the core in a mould;
- moulding polyurethane around the core such that the at least one core member is surrounded by polyurethane so that no portion of the expanded polystyrene of the at least one core member directly contacts the transparent sheet element of the window or door when the frame structure is in an operating position;
- and
- filling the at least one of a hole or canal at least partially with polyurethane.
3 more elements
Dependencies are inferred from the claim text.