Work chair

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4626029
SERIAL NO

06816680

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The work chair is provided with a backrest support (13) which is connected movably to the seat shell (4) or respectively to a base plate (10) stiffening the latter, for the purpose of individual adjustment of inclination, and is flexible in terms of bending along its vertical extension and the contour curve of which, under load, essentially approximates to the curve of the human spinal column. The inclination of the backrest can be fixed by means of a locking arrangement (14) which consists essentially of a pawl (16) which is spring-loaded (20) and of an engagement toothing (17) provided at the lower end of the backrest support (13).

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First Claim

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Patent Owner(s)

Patent OwnerAddress
PROTONED B VHERENGRACHT 374-376 NH 1016 CH AMSTERDAM

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brauning, Egon Weil am Rhein, DE 28 1000

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