发明名称 PRODUCT DEPLETION INDICATOR FOR REFRIGERATORS
摘要 A refrigerator in which each of a plurality of shelves is adapted to receive a number of consumable products of a particular type. The shelves are mounted for limited up-and-down movement under the weight of products thereon, each shelf in its upper position being in a depleted condition and effecting actuation of a switch that controls the energization of an indicator light on the exterior of the cabinet. The lights are of different colors to identify a particular depleted shelf and signal the depleted condition without the need to open the refrigerator door and inspect the shelves.
申请公布号 US3689909(A) 申请公布日期 1972.09.05
申请号 USD3689909 申请日期 1971.02.24
申请人 ANTHONY P. COTTER 发明人 ANTHONY P. COTTER
分类号 F25D25/02;(IPC1-7):G08B21/00 主分类号 F25D25/02
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