E - Fixed Constructions – 05 – G
Patent
E - Fixed Constructions
05
G
109/4
E05G 1/00 (2006.01) E05G 1/024 (2006.01)
Patent
CA 1054450
SAFE AND SAFE CONSTRUCTION METHOD Abstract of the disclosure A safe has a self-sealing jamb where the door confronts and fits together with the box. This is done by forming the con- fronting surfaces in the jamb region of a resin material and making the jamb region non-linear in cross section and long enough in cross section so that after an outer portion of the resin material is burned off in a fire, a charred residue and a plasti- cized portion of the resin material remain in the jamb region to seal the door to the box around the jamb region for substan- tially preventing heat conduction or passage of hot gasses through the jamb region to the interior of the box. The safe can also be formed in a resin mold for the box and the door with the mold remaining in place when the safe is used. The mold is preferably filled with a non-flammable, thermal insulating material having a substantial volume of chemically bonded water and made thick enough to maintain the interior of the box below 180°C for one hour in an ambient atmosphere of about 927°C. The box then lacks any external metallic shell so that the molded insulating material is exposed directly to the ambient atmosphere after the exterior resin casing is burned off in a fire. This also improves the heat resistance of the safe.
255038
Brush John D. (jr.)
Burgess George M.
LandOfFree
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