Pneumatic core for adjustable firmness of mattresses, cushions a

Details Pneumatic core for adjustable firmness of mattresses, cushions a Pneumatic core for adjustable firmness of mattresses, cushions a

1980-07-24

1982-11-09

Grosz, Alexander

Beds

Bedclothing

And means to facilitate changing thereof

5475, 5478, 297DIG3, A47C 2708, A47C 2304

Patent

active

043577245

ABSTRACT:
A pneumatic core for mattresses, cushions, car seats and the like, is disclosed. The core comprises an upper sheet of rubberized cloth and a lower sheet of flexible rubber material forming a plurality of protrusions when inflated.

REFERENCES:
patent: 1928675 (1933-10-01), Sampson
patent: 2521530 (1950-09-01), McGuffage
patent: 2691179 (1954-10-01), Kann
patent: 2748399 (1956-06-01), Rockoff
patent: 2814053 (1957-11-01), Sevcik
patent: 3045257 (1962-07-01), Knapp
patent: 3110520 (1963-11-01), Herding
patent: 3736027 (1973-05-01), Stafford
patent: 4076872 (1978-02-01), Lewicki et al.

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