Hollow reinforcements for fire-resistant safes
AssigneeJohn D. Brush & Co., Inc.
InventorsRichard C. Robbins, Andrew L. Oliveri, Mary P. DiGiambattista
Life of this patent
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Abstract
A fire-resistant safe is made with internal and external shells that are filled with insulation material. Hollow reinforcements interconnecting the two shells are formed as cone-shaped recesses in the internal shell having truncated bottom portions attached to the external shell. The insulation is made of a water-bearing material and the recesses are made of a resin material that melts at a temperature in excess of the boiling point of water. Funnels are formed in the external shell for adding the insulation material in a liquid state. An escutcheon for covering the funnels is anchored to the insulation material by stakes that are embedded in the insulation material before the material hardens into place.
Claims13
In a fire-resistant safe for protecting contents from fire constructed with internal and external resin shells that define a space between them filled with an insulation material, the improvement in which:
- a plurality of holes are formed through said insulation material;
- and
- said holes being formed by a plurality of recesses in said internal shell having bottom portions attached to said external shell for maintaining seals that prevent hot gases generated by a fire from entering the safe through said holes after said external shell has been burned away by the fire.
Dependencies are inferred from the claim text.