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US6511128B2 Expired / Lapsed US ⏱️ 0.0 years remaining

Chair with synchronized rocking seat and backrest

Assignee: Pro Cord SpA
•
Filing: 2001-06-07
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Granted: 2003-01-28
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Expires: 2021-06-07
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Abstract

Abstract Chair with synchronized rocking seat and backrest, comprising: a base support ( 14 ), a backrest supporting structure ( 18 ), connected to the base support ( 14 ) so to rock on a transversal axis (A), and a seat supporting structure ( 16 ) rocking on the base support ( 14 ) in a synchronized way with respect to the rocking movement of the backrest supporting structure ( 18 ). The backrest supporting structure presents, on each side of the chair, a bent metallic rod comprising: an anchoring portion ( 26 ) fastened to the base support ( 14 ), a riser section ( 28 ) which extends upwards, and an elastically deformable area ( 30 ) permitting the riser section ( 28 ) to rock on the transversal axis (A) with respect to the anchoring portion ( 26 ). The seat supporting structure ( 16 ) presents, on each side of the chair, a metallic rod ( 56 ) comprising: an anchoring portion ( 58 ) fastened to the base support ( 14 ), a lower section ( 60 ), an upper section ( 64 ) and an elastically deformable connecting portion ( 62 ) arranged between the lower section ( 60 ) and the upper section ( 64 ). Connection devices ( 84, 85 ) are provided between the upper section ( 64 ) and the seat supporting structure ( 16 ) and the backrest supporting structure.

Inventors

  • 👤 Alessandro Piretti

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 08:21
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/36; A47C7/40; A47C7/402; A47C3/00; A47C3/02; A47C3/025; A47C3/026; A47C7/44; A47C7/443; A47C7/444; A47C7/445

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 251 words
Chair with synchronised rocking seat and backrest, comprising: a base support ( 14 ), a backrest supporting structure ( 18 ), connected to the base support ( 14 ) so to rock on a transversal axis (A), and a seat supporting structure ( 16 ) rocking on the base support ( 14 ) in a synchronised way with respect to the rocking movement of the backrest supporting structure ( 18 ), characterized in that the backrest supporting structure presents, on each side of the chair, a bent first metallic rod comprising: an anchoring portion ( 26 ) fastened to the base support ( 14 ), a riser section ( 28 ) which extends upwards, and an elastically deformable area ( 30 ) permitting the riser section ( 28 ) to rock on said transversal axis (A) with respect to the anchoring portion ( 26 ), and in that the seat supporting structure ( 16 ) presents, on each side of the chair, a second metallic rod ( 56 ) comprising: an anchoring portion ( 58 ) fastened to the base support ( 14 ), a lower section ( 60 ), an upper section ( 64 ) and an elastically deformable connecting portion ( 62 ) arranged between the lower section ( 60 ) and the upper section ( 64 ), and that connection devices ( 84 , 85 ) are provided between the upper section ( 64 ) of the seat supporting structure ( 16 ) and the backrest supporting structure.
Claim 2
Dependent Claim 251 words
Chair with synchronised rocking seat and backrest, comprising: a base support ( 14 ), a backrest supporting structure ( 18 ), connected to the base support ( 14 ) so to rock on a transversal axis (A), and a seat supporting structure ( 16 ) rocking on the base support ( 14 ) in a synchronised way with respect to the rocking movement of the backrest supporting structure ( 18 ), characterized in that the backrest supporting structure presents, on each side of the chair, a bent first metallic rod comprising: an anchoring portion ( 26 ) fastened to the base support ( 14 ), a riser section ( 28 ) which extends upwards, and an elastically deformable area ( 30 ) permitting the riser section ( 28 ) to rock on said transversal axis (A) with respect to the anchoring portion ( 26 ), and in that the seat supporting structure ( 16 ) presents, on each side of the chair, a second metallic rod ( 56 ) comprising: an anchoring portion ( 58 ) fastened to the base support ( 14 ), a lower section ( 60 ), an upper section ( 64 ) and an elastically deformable connecting portion ( 62 ) arranged between the lower section ( 60 ) and the upper section ( 64 ), and that connection devices ( 84 , 85 ) are provided between the upper section ( 64 ) of the seat supporting structure ( 16 ) and the backrest supporting structure.
Claim 3
Dependent Claim 40 words
Chair according to claim 1 , characterized in that said connection devices comprises, on each side of the chair, a shoe ( 84 ), which can freely slide on the straight section of the backrest supporting structure ( 18 ).
Claim 4
Dependent Claim 40 words
Chair according to claim 1 , characterized in that the backrest supporting structure ( 18 ) comprises a frame ( 34 ), which position can be adjusted vertically along the riser sections ( 28 ) of the backrest supporting structure.
Claim 5
Dependent Claim 39 words
Chair according to claim 3 , characterized in that said frame ( 34 ) of the backrest supporting structure ( 18 ) holds a tubular fabric element ( 98 ) taut between two arched lateral sections ( 38 ).
Claim 6
Dependent Claim 38 words
Chair according to claim 1 , characterized in that the seat supporting structure ( 16 ) holds a tubular fabric element ( 90 ) taut between said upper sections ( 64 ) on each side of the chair.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2006-01-27 2006-07-29 2007-01-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2010-01-27 2010-07-29 2011-01-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2014-01-27 2014-07-29 2015-01-28 $7700.00 Window Closed / Lapsed

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