PROCEDURE SEALING UP FASTENING MEMBER OF PROTECTED OBJECT AND FASTENING MEMBER Russian patent published in 2002 - IPC

Abstract RU 2195025 C2

FIELD: detection of unauthorized access to protected objects, sealing up aids. SUBSTANCE: procedure sealing up fastening member of protected object consists in use of identification element which optical image changes irreversibly if attempt to remove fastening member is made, in recording of specified optical image by automatic means and in its usage for comparison with similar optical image recorded in process of check. Novelty of invention lies in formation of identification element right in process of installation of fastening member by way of torsional strain of section of outer surface of fastening member accessible for probing optical radiation. Fastening member of special design which head is embraced by outer body perceiving and transmitting torsional force and simultaneously undergoing irreversible deformation when fastening member is installed and dismantled is proposed for realization of procedure. Section of mentioned body accessible for probing optical radiation and showing light-reflecting properties is employed as identification element. Outer body can comprise two layers, outer layer accomplishes power function and inner layer is deformed layer that ensures formation of identification element. EFFECT: simplified sealing process ensuring guaranteed reliability of check of attempt of unauthorized removal of fastening member. 5 cl, 2 dwg

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RU 2 195 025 C2

Authors

Podgornov V.A.

Dates

2002-12-20Published

2000-09-06Filed