Disappearing underground safe

Details Disappearing underground safe Disappearing underground safe

1980-05-27

1983-01-25

Machado, Reinaldo P.

Safes, bank protection, or a related device

Incidentally movable safe or compartment

109 82, E05G 100

Patent

active

043697178

ABSTRACT:
A conventional steel case with drawers or a cash container are placed on an elevating system placed in a container below ground level. An outer shell of the container comprises armored, high strength and water proof concrete and an inner shell of the container comprises galvanized steel plate and the container is covered by a three layer armored cover plate. The cover plate has an upper layer of jointless connected steel segments or of a compact high hardness cast iron plate and prevents drilling and cutting with portable tools. The intermediate layer of copper plate renders impossible the use of cutting burners. A lower layer of an asbestos containing insulating plate protects the contents of the disappearing underground safe from heat in case of fire. Safety switches for the power of the motor and the actuation of the motor and a built in alarm system provide additional protection.

REFERENCES:
patent: 73375 (1868-01-01), Park
patent: 139792 (1873-06-01), Howard
patent: 206182 (1878-07-01), Koloseus
patent: 952877 (1910-03-01), Coles
patent: 993627 (1911-05-01), Wege
patent: 1124169 (1915-01-01), Prushey
patent: 1461963 (1923-07-01), Bieneck
patent: 3408966 (1968-11-01), Gartner
patent: 4022137 (1977-05-01), Chiu

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