Insulating apparatus and burglary resistant composite laminates employed therein

A transaction processing enclosure, suitable for housing electronic data processing equipment, documentation, valuable articles, banking pay-out and receiving apparatus and the like, said enclosure comprising a heat-resistant housing;

• access means in said housing to the interior of said enclosure;
• closures means having an outer surface conforming in size and shape and registrable with said access means to effect the opening and closing of said access means;
• said housing including guide means disposed along opposed borders of said closure means for accommodating movement of said closure means between an open and closed position and a sealing arrangement comprising a flange parallel and adjacent to each of said guide means;
• fluid-tight sealing means of reduced friction disposed between each of said flanges and said closure means;
• and strips of intumescent composition mounted upon opposed margins of said closure means and said flanges in spaced parallel relation to each other and adjacent said guide means;
• said intumescent strips being adapted to expand into contiguous relation to each other at elevated temperatures below the melting or disintegration temperature of said fluid-tight sealing means and to resist deterioration at elevated temperatures approaching temperatures of said housing and closure means so that said housing, closure means, fluid-tight sealing means and intumescent strips render said enclosure fire and heat resistant under a comparable range of environmental conditions, said housing and closure means comprising one or more panels composed of at least one outer ply which is reflective of radiant energy and penetration resistant, at least one heat insulating ply interior to said ply;
• at least one penetration resistant ply interior to said outer ply, and at least one structural support element disposed interior to said outer ply;
• said plys being integrally bonded with a fastening system.