Adjustable lumbar seating system

Details Adjustable lumbar seating system Adjustable lumbar seating system

1997-06-23

1999-01-19

Cranmer, Laurie K.

Chairs and seats

Bottom or back with means to alter contour

Providing support for lower back region

2972843, 2972841, A47C 3025

Patent

active

058606998

ABSTRACT:
A pneumatically controlled seat for a vehicle has a multiple air cell inflation system which can adjust the pressure in each of the cells simultaneously or sequentially to individually inflate or deflate the cells to a desired pressure level to control the tilt angle of a lumbar support.

REFERENCES:
patent: 4807931 (1989-02-01), Ishida et al.
patent: 5280997 (1994-01-01), Andres et al.
patent: 5320409 (1994-06-01), Katoh et al.
patent: 5606785 (1997-03-01), Shelberg et al.
patent: 5637076 (1997-06-01), Hazard

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