Chairs and seats – Back movement resiliently opposed in operating position – Back and seat adjust simultaneously
Reexamination Certificate
2009-02-17
2011-12-06
Dunn, David (Department: 3636)
Chairs and seats
Back movement resiliently opposed in operating position
Back and seat adjust simultaneously
C297S300200
Reexamination Certificate
active
08070230
ABSTRACT:
A rotatable office chair comprises at least two seat carriers, each further comprising an upper arched guide and a lower arched guide, and at least two back rest carriers, each further comprising a restrictedly guided region, and a back rest arranged on back rest carriers, wherein the restrictedly guided region of the at least one back rest carrier is guided between the upper arched guide and the lower arched guide of the at least one seat carrier, thus allowing the at least one back rest carrier to be inclined relative to the seat carrier, wherein the upper arched guide and the lower arched guide are embodied at least in certain regions as an arc of a circle portion and wherein the arc of a circle portion of the upper arched guide and the arc of a circle portion of the lower arched guide have the same center of a circle.
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Brüske Joachim
Krob Andreas
Abraham Tania
Dunn David
Fay Sharpe LLP
Thonet GmbH
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