|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||624/40 ; 312/401|
|§371/§102 date||19990305 (19990305)|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 52 인용 특허 : 6|
A refrigerating apparatus improves the insulating effect of a refrigerating chamber which is maintained at ultra low temperatures by a twin refrigerating apparatus. A vertical ultra low-temperature freezer 1 is composed of an insulating frame with a composite structure of a vacuum insulating panel and a foam insulating material, an insulating door with a composite structure of vacuum insulating panels and a foam insulating material, and a twin refrigerating apparatus which cools goods stored in the insulating frame. Ultra low temperatures are produced by...
[ What is claimed is:] [1.] A refrigeratingapparatus which comprises an insulating frame formed of a composite structure of a vacuum insulating panel and a foam insulating material, an insulating door made up of a composite structure of vacuum insulating panels and a foam insulating material, and a refrigerating apparatus for cooling goods stored in the insulating frame, the refrigerating apparatus being constituted by a plurality of refrigerating circuits joined in cascade connection.