Inflatable-inflated cushion for seat

Details Inflatable-inflated cushion for seat Inflatable-inflated cushion for seat

1985-03-11

1986-06-03

Zugel, Francis K.

Chairs and seats

Bottom or back with means to alter contour

297458, 297DIG3, A47C 300

Patent

active

045925895

ABSTRACT:
Inflatable or inflated seat cushion intended as a training or helping device mainly for sitting upright without a back rest providing as in walking for extensive free play of movement especially in the region of the pelvis and the lumbar, which activates the erecting muscular system and avoids permanent stress. The seat cushion is made of flexible material of several adjacently-arranged communicating chambers which are divided by a groove, whereby the height of the chambers decreases from the back towards the front.

REFERENCES:
patent: 202925 (1878-04-01), Brown
patent: 1673636 (1928-06-01), Perry
patent: 1823569 (1931-09-01), Mellano
patent: 3115647 (1963-12-01), Emery
patent: 3296635 (1967-01-01), O'Hanlan
patent: 3652126 (1972-03-01), Folling
patent: 3680917 (1972-08-01), Harris
patent: 4059909 (1977-11-01), Kron

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