METHOD FOR IDENTIFYING ITEM AND CHECKING ACCESS TO ITS PRIVATE SECTIONS; SEALING DEVICE Russian patent published in 2003 - IPC

FIELD: object protection against unauthorized access by means of seals and its identification. SUBSTANCE: sealing device has breakable layer with adhesive coating applied to side designed for contacting surface being sealed and to other side of breakable layer whereto film layer is attached. Sealing device is provided with lens disposed on film layer, Materials of layers are chosen so that adhesion between breakable layer and surface being sealed is stronger than between breakable layer and film layer and adhesion between the latter and lens is stronger than between film layer and breakable layer. For implementing proposed method information is divided into two parts, First simpler part repeated for all desired items is introduced in breakable layer. For entering second part of information use is made of film and/or shielding layer in the form of lens. This method does not permit reuse of device at the same time provision being made to read out information upon its removal. EFFECT: enhanced reliability of sealing device protection against accidental damage and unauthorized breakage. 7 cl, 1 dwg