Patent ID: 7833605
Filing Date: 2010-11-16
Classification: E04B,F16L,G06F,H01L,Y02A,Y02B,Y10T

Abstract:
1. A vacuum heat insulator comprising first and second gas barrier enveloping members, and a plurality of flat core members, wherein each of said first and second gas barrier enveloping members comprise heat seal layers, wherein said each of said plurality of core members is evacuated and sealed between the first and second enveloping members utilizing said heat seal layers, wherein the first and second enveloping members are heated and pressed to seal the entire core member between said first and second enveloping members, wherein said first and second enveloping members are heated and fused together utilizing said heat seal layers at portions where said core member is not disposed between said first and second enveloping members, wherein a border region seal is formed by portions of said first and second enveloping members where said core member is disposed between the two enveloping members and portions where the core member is not disposed between first and second enveloping members, and wherein said border region seal has a shape that corresponds to the periphery of the core member, wherein the entire portion of the first and second enveloping members adhering to each other is heated and fused, and wherein said plurality of core members are disposed in a zigzag layout at mutual specific intervals so as to form folding lines in four directions in the position between the adjacent core members.