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US 6,178,897 B2Granted
Protective device for valuable documents
AssigneeFn Herstal S.A.
InventorsGuy Appeltans, Luc Mellebeek
Life of this patent
Estimating the term…
Abstract
The invention concerns a protective device for valuable documents, including a volume capable of being closed and divided into two compartments, one of the compartments being used to receive the documents to be protected while in the second compartment caps contain a pyrotechnic mixture which, when the device is wrongly manipulated, will burst into a flame which will penetrate the documents in the first mentioned compartment.
Claims10
A device for protecting valuable papers such as securities, comprising:
- a closeable unit which is divided by a first partition having a plurality of apertures into at least a first space and a second space, the first space being arranged to hold papers to be protected which may be placed on one side of said first partition opposite the first partition apertures;
- and
- pyrotechnics provided in the second space located at a side of the partition opposite said one side and the pyrotechnics comprising capsules placed in a network opposite each of said first partition apertures opposite said one side of said first partition and each containing a pyrotechnical mixture which, when the device is manipulated in an unwanted manner, will inflame so as to produce a flame which propagates through said first partition aperture transpiercing any papers in the first space opposite said aperture thereby making the papers worthless but recognizable.
Dependencies are inferred from the claim text.