|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||49/3101 ; 49/390.3 ; 49/390.7 ; 49/390.8 ; 534/05 ; 534/34 ; 534/72 ; 535/12|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 11 인용 특허 : 5|
A core panel or box of rigid plastics microporous foam is provided with parallel spaced passages or thin grooves and is placed within an envelope or bag of flexible multi-layer barrier film impervious to the passage of gas. The bag includes an integral evacuation tubular portion which is releasably coupled to an evacuation nozzle connected by a manifold with solenoid valves to a vacuum pump. After air is substantially evacuated from the foam core and the bag to collapse the bag against the foam core and into the grooves, a vacuum sensor operates a comput...
[ What is claimed is:] [5.] A method of producing a vacuum insulated article, comprising the steps of forming a core of microporous material, surrounding the core with a bag of flexible gas impermeable film for forming an air-tight enclosure around the core, evacuating the bag and the core, sealing the bag after the core and bag are evacuated to a predetermined vacuum level, applying a layer of foam material in a fluid state to an exterior surface of the bag, and curing the layer to form a protective outer surface for the bag.