Chairs and seats – Movable bottom – Movable independently of back
Patent
1993-11-01
1995-08-29
Brittain, James R.
Chairs and seats
Movable bottom
Movable independently of back
297338, 2974113, 297DIG10, A47C 332
Patent
active
054454310
ABSTRACT:
A user-powered seat uplift apparatus including a structural frame unit, a mechanical uplift assembly unit and a power transfer mechanism connecting the two units allows the user to more easily obtain a standing position from a previous seated position. The structural frame unit is used to support and guide the mechanical uplift assembly unit. The mechanical uplift unit has two sections which can independently move vertically with respect to the structural frame unit. One section has a seat, the other has rails. When downward force is applied on the rails, the section having the rails moves vertically downward and produces an upward force in the section having the seat through the power transfer mechanism. This interface allows the user to more easily uplift themselves from a seated position and is especially useful for older and/or medically disabled persons.
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Brittain James R.
Litman Richard C.
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