|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||219/439 ; 219/430 ; 219/436|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 13 인용 특허 : 6|
A cooking pan having an inner shell and an outer shell between which is an oil filled cavity containing a heating element the inner shell being secured to the outer shell by a rolled beaded edge formed in such a manner that the free edges of the respective inner shell and outer shell are not in contact with one another because the outer margin of the inner shell has been pre-beaded, the outer margin of the outer shell has been folded, and the relationship between the two is such that the folded portion is spaced slightly from the pre-beaded portion. The ...
In a cooking pan having an outer shell and an inner shell sealed together at their circumferential margins to enclose an oil filled cavity containing a heating element, the novelty comprising: the margin of the inner shell and the margin of the outer shell being formed into a rolled edge bead sealing the two shells together at their margins, said outer shell being provided with an oil fill hole surrounded by an O-ring seat, a cup shaped plug for the oil fill hole having an outwardly turned flange, an O-ring on the outer surface of said cup backed by said...