Patent ID: 7744982
Filing Date: 2010-06-29
Classification: E04B,E06B,Y02A,Y02B,Y10T

Abstract:
1. An edge insulation piece for an insulation article, the edge insulation piece fitted between a first panel and a second panel of an insulation article, wherein said first panel and said second panel are opposite one another and parallel to one another, wherein a first perpendicular direction comprises a direction extending perpendicularly from said first panel to said second panel, wherein a second perpendicular direction comprises a direction extending perpendicularly from said second panel to said first panel, and wherein a planar direction comprises a direction that extends parallel with the plane of said first and second panels, the edge insulation piece comprising a sheet of material having two end portions, wherein a first end portion is joined to an outer side portion of the first panel and wherein a second end portion is joined to an outer side portion of the second panel, wherein the outer side portion of the first panel and the outer side portion of the second panel are perpendicular to the planar direction, wherein the sheet of material is shaped in a long conductive path from said first panel to said second panel within a small cross-sectional area between the two end portions, wherein the path of the sheet in cross-section comprises at least in part a spiral path wherein small portions of the sheet are folded to extend in said planar direction, at least one portion of the sheet is folded to extend in said first perpendicular direction, and at least one further portion of the sheet is folded to extend in said second perpendicular direction, the spiral path comprising portions of the sheet folded in at least the first and second perpendicular directions to form an inward spiral path in towards the centre of the edge insulation piece and the folding of the portions then being reversed to form an outward spiral path, portions of the sheet forming the outward spiral path being adjacent but not contacting portions of the sheet forming the inward spiral path and wherein the folded sheet does not contact the panels at any point other than at its end portions.