Selectively deformable seat

Details Selectively deformable seat Selectively deformable seat

1997-06-05

1998-06-23

Cranmer, Laurie K.

Chairs and seats

Straddle seat

Pneumatic cushion

2972846, 297204, B62J 126

Patent

active

057694885

ABSTRACT:
A motorcycle seat has a shape forming base on which a selectively deformable cushion is positioned and covered by an exterior covering, the cushion having a foam material encased within an airtight bladder. A valve member located externally of the covering has a conduit which extends through the bladder in sealed fashion and terminates within the foam material. The valve may be selectively opened, and when open while a compression force is applied on the foam, air is expelled from the foam, and if the valve is then closed the foam is formed into the shape of the force applicator. With the valve closed, movement upon the cushion redistributes the air within the foam accordingly. When the compression force is relieved and the valve is opened, the cushion takes on its original shape. A slow release bleed-back valve communicates the interior of the foam with ambient environment to permit air to gradually flow back into the foam in the event the operator fails to open the first mentioned valve after disembarking from the seat.

REFERENCES:
patent: 3758153 (1973-09-01), Bonikowsky
patent: 4960304 (1990-10-01), Frantz
patent: 5353734 (1994-10-01), Tani

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