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US 4,174,711 AGranted
Fire resistant enclosure
OwnerOliver Laing, Nikolaus Laing +1inventors
InventorsOliver Laing, Nikolaus Laing, Ingeborg Laing
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OwnerOliver Laing, Nikolaus Laing +1inventors
InventorsOliver Laing, Nikolaus Laing, Ingeborg Laing
Estimating the term…
In the walls of a fire resistant enclosure such as a cabinet for storing heat sensitive, valuable goods or a room or shelter in a building in which persons can find refuge in the event of a fire, hollow bodies of large area contain substances which melt at a temperature which is still acceptable to the contents of the cabinet or physiologically acceptable to the persons in the room or shelter. The invention also provides various appliances for alleviating conditions in a said room or shelter, for providing a breathing air supply at an acceptable temperature for persons trapped therein and for facilitating the evacuation of persons therefrom, all such appliances involving the use of substances adapted to absorb heat from their environment by utilizing the latent heat of fusion of the substances.
A container defining a shelter for persons having a wall which is heat insulating and protective against fire to prevent the interior of the container from exceeding a predetermined maximum temperature, said predetermined maximum temperature being equal to the physiologically acceptable temperatures of persons within the container, wherein the outer portion of the wall comprises at least one heat insulating layer and at least one other layer adjacent and inwardly of said heat insulating layer, said at least one other layer having hollow bodies of large area which are filled with a meltable crystalline substance whose melting point is below said predetermined maximum temperature and whose temperature of crystallization lies considerably below said melting point.
A container defining a shelter for persons having a wall which is heat insulating and protective against fire to prevent the interior of the container from exceeding a predetermined maximum temperature, said predetermined maximum temperature being equal to the physiologically acceptable temperature of persons within the container, wherein said wall comprises an outer heat insulating layer and at least one inner heat insulating layer, and at least two further layers adjacent and inwardly of said outer heat insulating layer and separated from each other by said inner heat insulating layer, said further layers having hollow bodies of large area which are filled with substances which absorb heat and undergo a phase change whereby, said phase change of the further layer which faces the interior of the container is a phase change from a crystalline phase to a liquid phase at a predetermined temperature below said predetermined maximum temperature, the predetermined temperature of the substance of said further layer which faces the interior of said container being lower than the predetermined temperature of the substance of said further layer disposed further outwardly.
Dependencies are inferred from the claim text.