Chair back with lumbar and pelvic supports

Details Chair back with lumbar and pelvic supports Chair back with lumbar and pelvic supports

2008-03-24

2009-02-03

Barfield, Anthony D (Department: 3636)

Chairs and seats

Bottom or back with means to alter contour

Having a plurality of adjacent relatively adjustable sections

C297S284400

Reexamination Certificate

active

07484802

ABSTRACT:
An office chair is provided having a back assembly which is configured to provide supplemental support to the back of a chair occupant in addition to the support provided by the primary support surface of the chair back. The chair back includes a lumbar support unit having a lumbar support pad wherein asymmetric support is provided to the left and right halves of the lumbar pad. As such, the asymmetric support loads are independently adjustable to more comfortably support a chair occupant. The chair back also includes a pelvic support pad which is disposed vertically adjacent to the lumbar support.

REFERENCES:
patent: 889224 (1908-06-01), Haas
patent: 2991124 (1961-07-01), Schwarz
patent: 3008764 (1961-11-01), Pile
patent: 3081129 (1963-03-01), Ridder
patent: 3121592 (1964-02-01), Anderson
patent: 3288525 (1966-11-01), Cerf
patent: 3938858 (1976-02-01), Drabert et al.
patent: 3948558 (1976-04-01), Obermeier et al.
patent: 3973797 (1976-08-01), Obermeier et al.
patent: 4019777 (1977-04-01), Hayashi
patent: 4155592 (1979-05-01), Tsuda et al.
patent: 4309058 (1982-01-01), Barley
patent: 4451085 (1984-05-01), Franck et al.
patent: 4465317 (1984-08-01), Schwarz
patent: 4502728 (1985-03-01), Sheldon et al.
patent: 4564235 (1986-01-01), Hatsutta et al.
patent: 4585272 (1986-04-01), Ballarini
patent: 4722569 (1988-02-01), Morgenstern et al.
patent: 4728148 (1988-03-01), Saito
patent: 4730871 (1988-03-01), Sheldon
patent: 4744351 (1988-05-01), Grundei et al.
patent: 4981325 (1991-01-01), Zacharkow
patent: 4981326 (1991-01-01), Heidmann
patent: 4993164 (1991-02-01), Jacobsen
patent: 5011223 (1991-04-01), Kato
patent: 5054854 (1991-10-01), Pruit
patent: 5120109 (1992-06-01), Rangoni
patent: 5195801 (1993-03-01), Franck et al.
patent: 5215350 (1993-06-01), Kato
patent: 5249839 (1993-10-01), Faiks et al.
patent: 5385388 (1995-01-01), Faiks et al.
patent: 5466045 (1995-11-01), Akima
patent: 5501507 (1996-03-01), Hummitzsch
patent: 5505520 (1996-04-01), Frusti et al.
patent: 5507559 (1996-04-01), Lance
patent: 5582459 (1996-12-01), Hama et al.
patent: 5704688 (1998-01-01), Schrewe et al.
patent: 5704689 (1998-01-01), Kim
patent: 5718476 (1998-02-01), DePascal et al.
patent: 5791733 (1998-08-01), van Hekken et al.
patent: 5797652 (1998-08-01), Darbyshire
patent: 5806931 (1998-09-01), Kogai
patent: 5826940 (1998-10-01), Hodgdon
patent: 5957533 (1999-09-01), Gallardo
patent: 6039397 (2000-03-01), Ginat
patent: 6056361 (2000-05-01), Cvek
patent: 6079785 (2000-06-01), Peterson et al.
patent: 6092871 (2000-07-01), Beaulieu
patent: 6116687 (2000-09-01), Vogtherr
patent: 6189972 (2001-02-01), Chu et al.
patent: 6217121 (2001-04-01), Mollet
patent: 6257665 (2001-07-01), Nagamitsu et al.
patent: 6260921 (2001-07-01), Chu et al.
patent: 6261213 (2001-07-01), Frey
patent: 6354662 (2002-03-01), Su
patent: 6378942 (2002-04-01), Chu
patent: 6394545 (2002-05-01), Knoblock et al.
patent: 6394546 (2002-05-01), Knoblock et al.
patent: 6409268 (2002-06-01), Cvek
patent: 6412868 (2002-07-01), Kuster et al.
patent: 6460928 (2002-10-01), Knoblock et al.
patent: 6471294 (2002-10-01), Dammermann et al.
patent: 6523898 (2003-02-01), Ball et al.
patent: 6530622 (2003-03-01), Ekern et al.
patent: 6536841 (2003-03-01), Pearce et al.
patent: 6557938 (2003-05-01), Long
patent: 6568760 (2003-05-01), Davis et al.
patent: 6572190 (2003-06-01), Koepke et al.
patent: 6588842 (2003-07-01), Stumpf et al.
patent: 6595585 (2003-07-01), Mundell
patent: 6616228 (2003-09-01), Heidmann
patent: 6619739 (2003-09-01), McMillen
patent: 6623076 (2003-09-01), Klingler
patent: 6637817 (2003-10-01), Christopher et al.
patent: 6644740 (2003-11-01), Holst et al.
patent: 6666511 (2003-12-01), Schuster et al.
patent: 6814407 (2004-11-01), Mundell
patent: 6820933 (2004-11-01), DaSilva
patent: 6874852 (2005-04-01), Footitt
patent: 6918633 (2005-07-01), Forkel et al.
patent: 7000986 (2006-02-01), DePinho
patent: 7185910 (2007-03-01), Beauchesne et al.
patent: 7350863 (2008-04-01), Engels et al.
patent: 2003/0075959 (2003-04-01), Xue
patent: 2005/0062323 (2005-03-01), Dicks
patent: 0 296 938 (1991-06-01), None
patent: 0 518 830 (1992-12-01), None
patent: 0 540 481 (1993-05-01), None
patent: 0 420 824 (1994-01-01), None
patent: 0 563 709 (1996-10-01), None
patent: WO94/25307 (1994-11-01), None
patent: WO03/063651 (2003-08-01), None
International Search Report mailed Nov. 3, 2006.

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