Air support for chair and method for manufacturing chair utilizi

Beds – Bedclothing – And means to facilitate changing thereof

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Details

5457, 297287, A47C 2708

Patent

active

049205919

ABSTRACT:
An inflatable support device for use in a chair includes two flexible, generally rectangular outer elements which are sealingly connected along corresponding peripheral edge portions, a plurality of parallel connection elements positioned between and connected to the rectangular outer elements and shaped so as to cause one of the outer elements to have a sinusoidal configuration when the support device is filled with air, and an air port connected to one of the rectangular outer elements.

REFERENCES:
patent: 1156523 (1915-10-01), Clemens
patent: 4292702 (1981-10-01), Phillips
patent: 4444430 (1984-04-01), Yoshida
patent: 4465158 (1984-08-01), Yamazaki
patent: 4552402 (1985-11-01), Huber
patent: 4580837 (1986-04-01), Bayley

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