Multiple chamber sequential inflation seat cushion

Details Multiple chamber sequential inflation seat cushion Multiple chamber sequential inflation seat cushion

1998-04-20

1999-03-16

Grosz, Alex

Beds

Support for users body or part thereof

Removable support specially adapted for seating

29745241, 601149, A47C 2710, A63G 7057

Patent

active

058814078

ABSTRACT:
A seat cushion inflation system, for periodically shifting the body weight / of a person seated on the cushion. The seat cushion comprises four inflation chambers which are separately inflatable. An inflation cycle is a sequence of inflations and deflations whereby the chambers are inflated alone and in combination with other chambers, and then are deflated, with a time delay between every step.

REFERENCES:
patent: 1772310 (1930-08-01), Hart
patent: 3008465 (1961-04-01), Gal
patent: 3297023 (1967-01-01), Foley
patent: 4840425 (1989-06-01), Noble
patent: 4852195 (1989-08-01), Schulman
patent: 5029939 (1991-07-01), Smith et al.
patent: 5379471 (1995-01-01), Holdredge

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