|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||312/407 ; 312/406 ; 220/421 ; 220/339|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 34 인용 특허 : 0|
An insulated panel for a domestic or household appliance is formed by a process in which two sheets of plastic material are extruded from a co-extrusion die and moved directly into a die thermoforming fixture. When the open die members are closed, the edges of the two sheets are sealed together to form a hollow panel and the walls of the panel are forced outwardly to conform to the shape of the die members. After the hollow panel is trimmed it is moved to a foam machine preferably while still contained in the thermoforming fixture so that foam insulation...
A refrigerator/freezer having a refrigerator compartment and a freezer compartment, said refrigerator/freezer including a plurality of panels, each of said panels comprising spaced apart inner and outer die-formed walls of plastic material which are sealed together at the edges thereof with adjacent edges of at least two of said panels being sealed to each other so as to be interconnected to each other by an integral hinge portion formed along said sealed adjacent edges, and insulating material at least partially filling the space between said inner and ...