|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||220/592.1 ; 220/592.25 ; 220/592.27 ; 220/592.26 ; 220/062.15|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 22 인용 특허 : 9|
A double-wall insulated container has an internal wall and an external wall enclosing an intermediate space which is under partial vacuum. A foam glass granulate fills the intermediate space and supports the walls. The walls may be metal or plastic and sealed with a vapor barrier as necessary to make the space leak-proof. The container may be styled as a Dewar flask for food or beverages, or larger to make it suitable for a household appliance such as a refrigerator.
[ What is claimed is:] [1.] An insulated leak-proof enclosure comprisingan internal wall and an external wall enclosing an intermediate space therebetween, which space is under partial vacuum, anda foam glass granulate filling said intermediate space and supporting said walls.