Chairs and seats – Bottom or back with means to alter contour – Providing support for lower back region
Reexamination Certificate
2007-06-01
2010-12-28
Dunn, David (Department: 3636)
Chairs and seats
Bottom or back with means to alter contour
Providing support for lower back region
C297S284200, C297S284400
Reexamination Certificate
active
07857388
ABSTRACT:
A chair includes a lower back frame, a back construction, including a back support attached to the lower back frame, a cushion assembly attached to the back support, and a vertically adjustable lumbar frame positioned between the back support and the cushion assembly. The lumbar frame includes a transition shell and a vertically sliding lumbar device having a plurality of horizontal flexible wires. A lower edge of the transition shell is positioned on top of an uppermost horizontal flexible wire of the lumbar device. The lumbar device is operably slidably mounted between the outer shell and cushion assembly and the transition shell upper edge slides between the outer shell and the upholstery cushion assembly. Also disclosed is a chair including a Y-shaped lower back frame having two uprights and a cross-piece attached to the back support. The uprights and cross-piece of the lower back frame include an overlap flange and the back support includes a channel-shaped flange having detents. The overlap flange and channel-shaped flange mate to form an overlap joint, including a box beam for added structural support.
REFERENCES:
patent: 538708 (1895-05-01), Smith
patent: 614997 (1898-11-01), Smith
patent: 767099 (1904-08-01), Bertolett
patent: 856058 (1907-06-01), Hanger
patent: 1001312 (1911-08-01), Sebring
patent: 1228771 (1917-06-01), Hanger
patent: 1338211 (1920-04-01), Clarke
patent: 1375868 (1921-04-01), Thompson
patent: 1789821 (1931-01-01), Leffingwell
patent: 2620861 (1952-12-01), Oothoudt
patent: 2843195 (1958-07-01), Barvaeus
patent: 3203734 (1965-08-01), Seymer
patent: 3734561 (1973-05-01), Barecki et al.
patent: 3907363 (1975-09-01), Baker et al.
patent: 3947068 (1976-03-01), Buhk
patent: 4350388 (1982-09-01), Weiner
patent: 4502728 (1985-03-01), Sheldon et al.
patent: 4529247 (1985-07-01), Stumpf et al.
patent: 4541670 (1985-09-01), Morgenstern et al.
patent: 4634176 (1987-01-01), Scott
patent: 4634178 (1987-01-01), Carney
patent: 4660887 (1987-04-01), Fleming et al.
patent: 4722569 (1988-02-01), Morgenstern et al.
patent: 4730871 (1988-03-01), Sheldon
patent: 4805962 (1989-02-01), Sacco et al.
patent: 4810033 (1989-03-01), Kemmann
patent: 4892356 (1990-01-01), Pittman et al.
patent: 4915448 (1990-04-01), Morgenstern
patent: 4962964 (1990-10-01), Snodgrass
patent: 5015038 (1991-05-01), Mortz, III
patent: 5018788 (1991-05-01), Cedergreen
patent: D319739 (1991-09-01), Narita
patent: 5044693 (1991-09-01), Yokota
patent: D322363 (1991-12-01), Narita
patent: 5100204 (1992-03-01), Makihara et al.
patent: 5112106 (1992-05-01), Asbjornsen et al.
patent: 5286083 (1994-02-01), Mattison
patent: 5328245 (1994-07-01), Marks et al.
patent: 5338099 (1994-08-01), Ishi et al.
patent: 5460427 (1995-10-01), Serber
patent: 5567010 (1996-10-01), Sparks
patent: 5641205 (1997-06-01), Schmidt
patent: 5651584 (1997-07-01), Chenot et al.
patent: 5678893 (1997-10-01), Bock
patent: 5711575 (1998-01-01), Hand et al.
patent: 5752741 (1998-05-01), Bort
patent: 5791733 (1998-08-01), van Hekken et al.
patent: 5820221 (1998-10-01), Greaves et al.
patent: D407576 (1999-04-01), Rich et al.
patent: 5902011 (1999-05-01), Hand et al.
patent: 5951110 (1999-09-01), Conner et al.
patent: 5975632 (1999-11-01), Ginat
patent: 6013040 (2000-01-01), Morgenstern et al.
patent: 6033027 (2000-03-01), Conner et al.
patent: 6035901 (2000-03-01), Stumpf et al.
patent: 6042187 (2000-03-01), Conner et al.
patent: 6059362 (2000-05-01), Lin
patent: 6059368 (2000-05-01), Stumpf et al.
patent: 6062649 (2000-05-01), Nagel et al.
patent: 6079785 (2000-06-01), Peterson et al.
patent: 6099076 (2000-08-01), Nagel et al.
patent: 6125521 (2000-10-01), Stumpf et al.
patent: 6149236 (2000-11-01), Bräuning
patent: 6168239 (2001-01-01), Conner et al.
patent: 6186594 (2001-02-01), Valiquette et al.
patent: 6189972 (2001-02-01), Chu et al.
patent: 6220661 (2001-04-01), Peterson
patent: 6224160 (2001-05-01), Takeuchi
patent: 6260921 (2001-07-01), Chu et al.
patent: 6354662 (2002-03-01), Su
patent: 6378942 (2002-04-01), Chu
patent: 6382719 (2002-05-01), Heidmann et al.
patent: 6386634 (2002-05-01), Stumpf et al.
patent: 6394545 (2002-05-01), Knoblock et al.
patent: 6394546 (2002-05-01), Knoblock et al.
patent: 6409268 (2002-06-01), Cvek
patent: 6419318 (2002-07-01), Albright
patent: 6425637 (2002-07-01), Peterson
patent: 6471294 (2002-10-01), Dammermann et al.
patent: 6523898 (2003-02-01), Ball et al.
patent: 6550866 (2003-04-01), Su
patent: 6572190 (2003-06-01), Koepke et al.
patent: 6575530 (2003-06-01), Fischer et al.
patent: 6588842 (2003-07-01), Stumpf et al.
patent: 6626497 (2003-09-01), Nagamitsu et al.
patent: 6688687 (2004-02-01), Chu
patent: 6688690 (2004-02-01), Watson et al.
patent: 6695403 (2004-02-01), Su
patent: 6702390 (2004-03-01), Stumpf et al.
patent: 6722741 (2004-04-01), Stumpf et al.
patent: 6726286 (2004-04-01), Stumpf et al.
patent: 6733080 (2004-05-01), Stumpf et al.
patent: 6755467 (2004-06-01), Chu
patent: D495509 (2004-09-01), Breen
patent: D496812 (2004-10-01), Chu
patent: 6817667 (2004-11-01), Penningtom et al.
patent: 6843530 (2005-01-01), Wu
patent: 6848744 (2005-02-01), Raftery et al.
patent: 6874852 (2005-04-01), Footitt
patent: D506628 (2005-06-01), Koepke et al.
patent: D506629 (2005-06-01), Koepke et al.
patent: 6908159 (2005-06-01), Prince et al.
patent: 6910741 (2005-06-01), Footitt
patent: D507437 (2005-07-01), Klaasen et al.
patent: 6913315 (2005-07-01), Ball et al.
patent: D509388 (2005-09-01), Koepke et al.
patent: 6938956 (2005-09-01), Piretti
patent: 6957861 (2005-10-01), Chou et al.
patent: 6966604 (2005-11-01), Stumpf et al.
patent: 6969116 (2005-11-01), Machael et al.
patent: D512843 (2005-12-01), Breen
patent: 6971717 (2005-12-01), Rhodes
patent: 6974189 (2005-12-01), Machael et al.
patent: 6981743 (2006-01-01), Edwards et al.
patent: 6994400 (2006-02-01), Koepke et al.
patent: 7063384 (2006-06-01), Liu
patent: 7066538 (2006-06-01), Machael et al.
patent: 7066546 (2006-06-01), Trego et al.
patent: 7097247 (2006-08-01), Battey et al.
patent: 7104604 (2006-09-01), Kang
patent: 2002/0093233 (2002-07-01), Chu
patent: 2002/0096920 (2002-07-01), Watson et al.
patent: 2003/0111886 (2003-06-01), Footitt
patent: 2004/0245825 (2004-12-01), Battey et al.
patent: 2004/0245839 (2004-12-01), Bodnar et al.
patent: 2004/0245841 (2004-12-01), Peterson et al.
patent: 2005/0035638 (2005-02-01), Pennington et al.
patent: 2005/0062323 (2005-03-01), Dicks
patent: 2005/0146195 (2005-07-01), Machael et al.
patent: 2005/0189810 (2005-09-01), Wu
patent: 2006/0103222 (2006-05-01), Caruso et al.
patent: 2006/0181127 (2006-08-01), Pennington et al.
patent: 3521067 (1985-12-01), None
patent: 4236631 (1994-05-01), None
patent: 767099 (1934-07-01), None
patent: 1338211 (1962-11-01), None
patent: 149246 (1921-04-01), None
patent: 342613 (1931-02-01), None
patent: 483047 (1938-04-01), None
patent: 640883 (1950-08-01), None
patent: 20-0250543 (2001-11-01), None
patent: 2006010552 (2006-02-01), None
patent: 2006119209 (2006-11-01), None
Battey Robert J.
Bedford Adam C.
Hall Jeffrey A.
Karsten Gary Lee
Peterson Gordon J.
Dunn David
Garrett Erika
Price Heneveld Cooper DeWitt & Litton LLP
Steelcase Inc.
LandOfFree
Seating unit with adjustable lumbar device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Seating unit with adjustable lumbar device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seating unit with adjustable lumbar device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4221520