Patent Number: 6,305,768

Title: Full vacuum heat insulation box body and method for producing and disassembling the same

Abstract: A heat insulation box body includes inner and outer boxes forming a shell of the heat insulation box body and triangular structural materials inserted in the shell held by close-contact by means of a vacuum. Further, at the time of disassembling the heat insulation box body after scrapping, a shell surface is cut and air is introduced into the inside of the shell to return the state of the shell to an atmospheric pressure state and then respective members are separated from each other.

Inventors: Nishimoto; Yoshio (Tokyo, JP)

Assignee: Mitsubishi Denki Kabushiki Kaisha

International Classification: B29C 44/12 (20060101); B29C 44/02 (20060101); F25D 23/06 (20060101); A47B 096/04 ()

Expiration Date: 10/23/2018