Beds – Bedclothing – And means to facilitate changing thereof
Patent
1977-12-30
1979-10-30
Nunberg, Casmir A.
Beds
Bedclothing
And means to facilitate changing thereof
5455, 156290, A47C 454, B32B 3104
Patent
active
041723015
ABSTRACT:
Apparatus and method are disclosed which pertain to inflatable structures useful as air beds and the like. Shape and load control are facilitated by a plurality of bladders that are located within an inflatable chamber of the structure and are joined to opposed imperforate walls thereof. The bladders are provided with vents which lend to the interior of the chamber, and upon inflation of the structure and resultant separation of the opposed walls of the chamber, the bladders are caused to extend from a flattened state, become filled with the fluid used for inflating the structure, and assume a roughly cylindrical convoluted configuration. Being made of a flexible, substantially non-extensible material, such a vinyl plastics, there is a limit to which the bladders can extend, and further vertical separation or lateral shifting of the attached opposed walls is thereby restrained. When the bladders are provided with vents, they "breathe" when a physical load is applied to the inflated structure or removed from it, hence, regulating resiliency by means of an "air spring" effect.
REFERENCES:
patent: 3766579 (1973-10-01), Shields
patent: 3879776 (1975-04-01), Solen
patent: 4056858 (1977-11-01), Weber
P. 81, Industry Magazine, Mollura Industries, May 1978.
Everard Lloyd D.
Mollura Carlos A.
Mollura Carlos A.
Nunberg Casmir A.
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