Chairs and seats – Back movement resiliently opposed in operating position
Reexamination Certificate
2005-04-19
2005-04-19
White, Rodney B. (Department: 3636)
Chairs and seats
Back movement resiliently opposed in operating position
C297S286000, C297S300600, C297S300700, C297S300800, C297S301500, C297S301600, C297S301700
Reexamination Certificate
active
06880886
ABSTRACT:
A seating unit includes a base, a seat, a back, and a control operably supporting the seat and the back on the base for movement between upright and recline positions. The control includes a spring providing a biasing supporting force to the back during recline, and further includes a booster mechanism capable of increasing the supporting force, and still further includes a selector device for activating and deactivating the booster mechanism. The selector device is easily moveable with a low effort that is separated from and independent from any friction generated by internal components of the booster mechanism. In a narrower aspect, the control is powered, such as by an electrical or electromechanical device from a remote location. A back stop is attached to the selector device, for movement between a disengaged position, a partial-recline position, and a recline-prevented position.
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Bedford Adam C.
Bodnar David A.
Heidmann Kurt R.
Karsten Gary L.
Price Heneveld Cooper DeWitt & Litton
Steelcase Development Corporation
White Rodney B.
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