Patent ID: 8757629

Claim:
A method of forming a thermal insulation structure, comprising: providing a thermal insulating structure having an upper surface and a lower surface, and an end surface connecting the upper and lower surfaces, and wherein the end surface is a flat surface; welding a bulb seal strip to the end surface to thereby permanently couple the bulb seal strip to the end surface; wherein the bulb seal strip is formed from a tab portion extending from a bulb portion, wherein the tab portion and the bulb portion comprise a thermally resistant material, and wherein the bulb portion is filled with an insulating material; wherein the bulb seal strip is distinct from the thermal insulating structure, wherein the tab portion comprises a metal and is configured as a strip along one side of which the tab portion is coupled to the bulb portion, and wherein the bulb portion comprises an insulating material; wherein bulb seal strip is electrically welded to the end surface via a first part of the tab portion such that at least part of the bulb portion sealingly abuts with the end surface; and wherein a second part of the tab portion extends away from the end surface.