|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||219/621 ; 219/625 ; 219/651 ; 219/430|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 68 인용 특허 : 0|
A cooking utensil with improved heat retention includes an inner pot received within an outer pot and separated in a closely spaced-apart relationship to form a volume or chamber therebetween. The chamber is evacuated and sealed with foil leaves at the upper edges of the inner and outer pot. The vacuum created between the inner and outer pot, along with the minimum of thermal contact between the inner and outer pot, and the reduced radiative heat transfer due to low emissivity coatings on the inner and outer pot, provide for a highly insulated cooking ut...
A cooking utensil comprising: an outer shell having an inner surface and an outer surface, said outer surface being exposable to the source of heat; an inner shell positioned adjacent and in juxtaposed relation to the outer shell in a manner that encloses a chamber between the inner shell and the outer shell, said inner shell having an inner surface that is shaped to define a container, said chamber being evacuated to a level sufficient to inhibit heat transfer by gas molecular conduction between the inner shell and the outer shell; and heat transfer con...