Patent ID: 8225954

Claim:
A heat-sealable seal including a support bonded to an inner seal by a temporary adhesive, said inner seal having a pull-tab folded back once over a surface of the inner seal in contact with a corresponding surface of the support, wherein the inner seal comprises a laminate comprising the pull-tab, the laminate including a reinforcing layer and a sheet of a conducting material, and wherein a heat-sealing film is applied to a lower surface of the laminate, wherein the temporary adhesive contacts a surface of the inner seal after the pull-tab is folded back, and wherein the folded pull-tab exposes at least a portion of the heat-sealing film and defines a fold line positioned at a distance (F 2 ) from a periphery of the heat-sealing film and having a length (l 2 ) less than a chord length of the laminate at the distance (F 2 ) from the periphery of the heat-sealing film.