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US 4,021,972 AGranted
Air supported, multi-wall, insulated structure and process of producing same
OwnerJames Edwin Choate, John Robson Hallinventors
Life of this patent
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OwnerJames Edwin Choate, John Robson Hallinventors
Estimating the term…
An air supported multi-wall insulated structure formed of a flexible impermeable, impervious or imperforate wall and a permeable, pervious or perforate wall defining juxtaposed cavities or compartments between the walls, filled with insulating material such as particulate expanded polystyrene material and the process of inflating the envelope and then filling the compartments with the insulating material by blowing the same into place. In certain embodiments, the perforate wall forms the inner wall. In another embodiment it forms the outer wall. In still another embodiment the impermeable wall is the central wall and perforate walls are on both sides of the impermeable wall. In still another embodiment the central and outer walls are impermeable, forming the air space and the inner wall is perforate and contains the insulating material.
An air supported structure comprising:
The structure defined in claim 8 wherein said nylon net has about 20 threads per inch in both directions.
An air supported structure comprising:
An air supported structure comprising:
Process of producing an insulated air supported structure, comprising the steps of:
Dependencies are inferred from the claim text.