发明名称 Expandable home package delivery box
摘要 An expandable delivery box, according to the teachings of the present invention is shown as a free-standing metal box with a full top cover, a fully enclosed expandable front box member and two fully enclosed, extendable side members. Two unique locks which can only be opened by delivery persons using special keys are supplemented by other hand latches and holds accessible after opening the unit to extend the expansion members, if necessary. After a delivery has been made the unit can then only be opened by the receiver of the delivery using one of two combination locks on the main frame of the unit or an expansion member. When the unit is closed it cannot then be opened by the combination locks again until another delivery has been made. The unit also includes means for marking receipts proving delivery was made and received.
申请公布号 US4944422(A) 申请公布日期 1990.07.31
申请号 US19890442851 申请日期 1989.11.29
申请人 AURNESS, HAROLD O.;MAHLER, THOMAS G. 发明人 AURNESS, HAROLD O.;MAHLER, THOMAS G.
分类号 A47G29/20 主分类号 A47G29/20
代理机构 代理人
主权项
地址