US 5,174,640 AGranted

Thermal insulation box

AssigneeSanyo Electric Co., Ltd.

InventorsMakoto Kuwahara, Kakuji Kume, Eiichi Masuko, Atsushi Saitou, Katsuhiro Fukuda, Takashi Araki, Yuuji Hosoda

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Abstract

A partitioning member having therein a space is provided at the opening of a thermal insulation box having an outer and inner boxes forming a space in between said outer and inner boxes. The two spaces communicate with each other and filled integrally with a thermal insulation material by injecting into the space between said outer and inner box an expandable thermal insulation material, which diffuses into the space inside said partitioning member, to thereby provide in a simple and economical way a thermal insulation box having a small number of components but as uniform thermal insulation.

Claims8

Dependent claims

A thermal insulation box having inner and outer boxes forming a space between said boxes and a partitioning member in the form of a cross and provided at the opening of said thermal insulation box partitioning said opening of said box into four areas;

wherein said partitioning member has an outer shell forming therein a space which communicates with said space between said inner and outer boxes;
said space between said inner and said outer boxes and said space inside said partitioning member being integrally filled with a thermal insulation material;
and
wherein said partitioning member has a cross shaped intersecting portion, said intersecting portion comprising vertical front and rear plates and transverse front and rear plates.

1 more element

Dependencies are inferred from the claim text.