PLATE FOR PROTECTION AGAINST BURGLARY Russian patent published in 1998 - IPC

FIELD: protective devices. SUBSTANCE: this is intended for protection of safes, cabinets, premises, etc. against burglary by means of various mechanical, thermal, or thermal-mechanical devices. Protective plate aimed against burglary has layers of hard material possessing hardness of at least 7 point as to Mohs hardness scale, and of synthetic elastomeric material, all enclosed in metal housing. Layer of hard material is made as monolithic. Synthetic elastomeric material is foaming at heating and is configured in the form of layer. Located between layers of hard material and synthetic elastomeric material is additional layer of thermal-resistant and heat-insulating material. Additional layer can be made from separate sheets of thermal-resistant material which are bound to each other by synthetic elastomeric material. EFFECT: higher efficiency. 1 cl, 2 dwg