Receptacles – Arrangements of plural receptacles – Receptacle having rigid – removable inner container
Patent
1989-11-29
1990-07-31
Pollard, Steven M.
Receptacles
Arrangements of plural receptacles
Receptacle having rigid, removable inner container
220 23, B65D 2500
Patent
active
049444220
ABSTRACT:
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.
REFERENCES:
patent: 1984345 (1934-12-01), Kennedy
patent: 2555073 (1951-05-01), Zdankoski
patent: 2630476 (1953-03-01), Zelov
patent: 2936066 (1960-05-01), Meksula
patent: 4128170 (1978-12-01), Elliott
patent: 4512503 (1985-04-01), Gioso
patent: 4717020 (1988-01-01), Viira
Aurness Harold O.
Mahler Thomas G.
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