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1. 发明授权

US5485921A Lunch box 失效
标题翻译：便当盒
公开(公告)号：US5485921A
公开(公告)日：1996-01-23
申请号：US125119
申请日：1993-09-22
申请人： Jacob M. Tolendano
发明人： Jacob M. Tolendano
IPC分类号： A45C11/20 , F25D17/04 , B65D81/20
CPC分类号： F25D17/042 , A45C11/20 , F28D20/028 , F25D2317/043 , F25D2331/804 , Y02E60/145
摘要： A lunch box has a housing defining a hot and a cold compartment. An arrangement is provided in the lunch box for creating vacuum inside the compartments so as to releasably seal the cover of the lunch box onto the housing. Ribs or protrusions are provided on inner surfaces of the compartments to substantially prevent contact between stored food and the inner surfaces of the compartments. A device for producing heat may be provided in the hot compartment. Vacuum created inside the lunch box and minimal contact between the stored food and surfaces of the compartments substantially eliminates convection and conduction of heat to and from the stored food thereby effectively maintaining the temperature of the stored food over longer periods of time.
摘要翻译：午餐盒具有定义热和冷隔间的外壳。在饭盒中设置有用于在隔间内形成真空的装置，以将餐盒的盖可释放地密封在壳体上。在隔室的内表面上设有肋条或突起，以基本上防止储存食物与隔间内表面之间的接触。可以在热室中设置用于产生热量的装置。在饭盒内部产生的真空和存储的食物与隔间表面之间的最小接触基本上消除了与储存的食物的热量的对流和传导，从而有效地在较长时间内保持储存食物的温度。

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