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Machine translation
1. (WO1993020300) REINFORCED WALL STRUCTURE
Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

CLAIMS

1. A board comprising two spaced apart panels (P1,P2) and an infill between the panels, the infill comprising a grid formed of walls defining cells (C), the walls extending from one panel towards the other, the cells (C) being filled with set material (S), characterised in that a discontinuity (20,21) is present to prevent the transfer of heat and/or moisture from one panel to the other panel along a cell wall.

2. A board according to Claim 1, wherein the discontinuity comprises a layer or sheet of set material (20) such as plastics, e.g. polyurethane foam or neoprene disposed along the inner surface of one or both panels (P1,P2).

3. A board according to Claim 1, wherein the honeycomb cells (C) are present adjacent the inner surface of each panel (P1,P2), and a middle layer (27) of set resin foam is present in between.

4. A board according to Claim 1, wherein the discontinuity comprises an airtight sealed vacuum chamber (21) near the midline of the board.

5. A board according to Claim 4, wherein a vacuum pump is connected to the chamber (21).

6. A board according to Claim 5, wherein a pressure gauge is connected to the chamber (21) and arranged to actuate the vacuum pump when the pressure in the chamber exceeds a predetermined limit.

7. A board according to Claim 1, wherein the cells (C) are present adjacent the inner surface of each panel (P1,P2) and a middle layer (27) of set resin is present in between.

8. A board according to any preceding Claim, wherein the walls of the cells (C) are formed of coated paper, metal strip or foil.

9. A board according to any preceding Claim, wherein the cells (C) are of hexagonal, octagonal, ellipsoidal or circular shape.

10. A board according to any preceding Claim, wherein the set material is a cement or hardened resin.