Self-levelling seat suspension system for vehicles

Details Self-levelling seat suspension system for vehicles Self-levelling seat suspension system for vehicles

1975-06-27

1977-05-10

Staab, Lawrence J.

Supports

Stand

Standard type

248401, A45D 1904

Patent

active

040224112

ABSTRACT:
A self-levelling seat suspension system for vehicles wherein the seat is reciprocally supported by a cushion of pressurized air interposed between the seat and its supporting base unit. Pressurized air is supplied to or vented from the air cushion by a level control valve bodily movable with the seat and relative to an actuating cam. By way of example, the level control valve is fixed to one of a pair of links hingedly connecting the seat and its base and serving additionally to restrain the seat from rotation about its axis of reciprocation.The control valve is actuated by a cam which is manually adjustable to support the seat in any one of several different neutral levels while the occupant is seated.

REFERENCES:
patent: 2880782 (1959-04-01), Conner
patent: 2961033 (1960-11-01), Galbraith
patent: 3100101 (1963-08-01), Trevaskis
patent: 3218020 (1965-11-01), Rhodes
patent: 3343775 (1967-09-01), Stephenson
patent: 3593953 (1971-07-01), Auer
patent: 3632077 (1972-01-01), Hall
patent: 3661176 (1972-05-01), Lowe
patent: 3758064 (1973-09-01), Sawaki
patent: 3951373 (1976-04-01), Swenson et al.
patent: 3954245 (1976-05-01), Costin

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