Chairs and seats – Bottom or back – Contoured back
Reexamination Certificate
2007-07-31
2007-07-31
Barfield, Anthony D. (Department: 3636)
Chairs and seats
Bottom or back
Contoured back
C297S284400, C297S452460
Reexamination Certificate
active
10365682
ABSTRACT:
A tiltable chair including a housing, a back support pivotally attached to the housing about a first horizontal axis and a seat support pivotally attached to the back support about a second horizontal axis and moveably supported by a curved track formed on the housing. A leaf spring includes a first end supported by the housing and a second end biasing the back support and seat support in an upward direction. Preferably, a fulcrum member, which includes a support surface having a curvilinear contour, is moveably supported in the housing and engages a bottom surface of the spring intermediate the first and second ends of the spring. Preferably, a linkage mechanism including a first and second link is adapted to adjust the position of the fulcrum. In another preferred embodiment, a gear housing is removably disposed in said housing and coupled to the fulcrum. In one preferred embodiment, rearward and forward tilt limiters are provided. In various preferred embodiments, the chair further includes a backrest having a plurality of openings, and armrests that are vertically, laterally and pivotally adjustable. In a preferred embodiment, a kit for assembling a seating structure includes a tilt housing having a plurality of connector arrangements comprising at least a first and second connector arrangement, a first seating arrangement having a first mounting arrangement configured to be connected to the first connector arrangement, and a second seating arrangement having a second mounting arrangement configured to be connected to the second connector arrangement.
REFERENCES:
patent: 2549902 (1951-04-01), Hibbard et al.
patent: 3059919 (1962-10-01), Marchino
patent: D201355 (1965-06-01), Cavalli
patent: 3198578 (1965-08-01), Geoffrey et al.
patent: 3720568 (1973-03-01), Rowland
patent: 3762769 (1973-10-01), Poschl
patent: 3767261 (1973-10-01), Rowland
patent: 4368917 (1983-01-01), Urai
patent: 4418958 (1983-12-01), Watkin
patent: 4502728 (1985-03-01), Sheldon et al.
patent: 4541670 (1985-09-01), Morgenstern et al.
patent: 4556254 (1985-12-01), Roberts
patent: 4576351 (1986-03-01), Brink
patent: 4695096 (1987-09-01), Kincaid
patent: 4722569 (1988-02-01), Morgenstern et al.
patent: 4915448 (1990-04-01), Morgenstern
patent: 4961610 (1990-10-01), Reeder et al.
patent: 4993164 (1991-02-01), Jacobsen
patent: 5018786 (1991-05-01), Goldstein et al.
patent: 5143422 (1992-09-01), Althofer et al.
patent: 5344211 (1994-09-01), Adat et al.
patent: 5368365 (1994-11-01), Feldberg
patent: D355534 (1995-02-01), Saotome
patent: 5393124 (1995-02-01), Neil
patent: 5415459 (1995-05-01), Schultz
patent: 5460427 (1995-10-01), Serber
patent: 5484187 (1996-01-01), Doerner et al.
patent: 5486035 (1996-01-01), Koepke et al.
patent: 5487591 (1996-01-01), Knoblock
patent: 5518294 (1996-05-01), Ligon, Sr. et al.
patent: 5553917 (1996-09-01), Adat et al.
patent: 5567010 (1996-10-01), Sparks
patent: 5590934 (1997-01-01), Gibbs
patent: 5599067 (1997-02-01), Schuelke et al.
patent: 5624158 (1997-04-01), Adat et al.
patent: 5630647 (1997-05-01), Heidmann et al.
patent: 5641203 (1997-06-01), Van De Riet et al.
patent: 5647638 (1997-07-01), Ritt et al.
patent: 5651586 (1997-07-01), Groth
patent: 5655814 (1997-08-01), Gibbs
patent: 5664841 (1997-09-01), Dal Monte
patent: 5685606 (1997-11-01), Lance
patent: D390712 (1998-02-01), Koepke et al.
patent: 5718476 (1998-02-01), De Pascal et al.
patent: 5749628 (1998-05-01), Snyder et al.
patent: 5791733 (1998-08-01), Van Hekken et al.
patent: 5795026 (1998-08-01), Dral et al.
patent: 5797652 (1998-08-01), Darbyshire
patent: 5848823 (1998-12-01), Su
patent: 5853223 (1998-12-01), Ritt et al.
patent: 5860700 (1999-01-01), Lance
patent: 5868466 (1999-02-01), Massara et al.
patent: 5871256 (1999-02-01), Kogai
patent: 5876097 (1999-03-01), Cao
patent: D407911 (1999-04-01), Bräuning
patent: 5895095 (1999-04-01), Chen
patent: 5904400 (1999-05-01), Wei
patent: 5909923 (1999-06-01), DeKraker
patent: 5913569 (1999-06-01), Klingler
patent: 5927811 (1999-07-01), Tseng
patent: 5934758 (1999-08-01), Ritch et al.
patent: 5944386 (1999-08-01), Yamagishi et al.
patent: D414349 (1999-09-01), Jenkins et al.
patent: 5975632 (1999-11-01), Ginat
patent: 5984408 (1999-11-01), Bujaryn
patent: D418316 (2000-01-01), Vogtherr
patent: 6017091 (2000-01-01), Cao
patent: 6030041 (2000-02-01), Hsiao
patent: 6053578 (2000-04-01), Van Hekken et al.
patent: 6053579 (2000-04-01), Nelson et al.
patent: D424824 (2000-05-01), Chu
patent: 6059362 (2000-05-01), Lin
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: 6109694 (2000-08-01), Kurtz
patent: 6125521 (2000-10-01), Stumpf et al.
patent: 6129419 (2000-10-01), Neale
patent: D434918 (2000-12-01), Arko et al.
patent: 6179384 (2001-01-01), DeKraker et al.
patent: D437701 (2001-02-01), Bellini et al.
patent: 6189971 (2001-02-01), Witzig
patent: D442790 (2001-05-01), Simons, Jr. et al.
patent: D442791 (2001-05-01), Simons, Jr. et al.
patent: D444309 (2001-07-01), Nagamitsu
patent: D444955 (2001-07-01), Su
patent: 6254186 (2001-07-01), Falzon
patent: 6260921 (2001-07-01), Chu et al.
patent: D449174 (2001-10-01), Neil
patent: D453633 (2002-02-01), Diffrient
patent: 6378942 (2002-04-01), Chu
patent: D456650 (2002-05-01), Ball et al.
patent: D457023 (2002-05-01), Ball et al.
patent: D460869 (2002-07-01), Koepke et al.
patent: 6419318 (2002-07-01), Albright
patent: D461661 (2002-08-01), Koepke et al.
patent: 6439661 (2002-08-01), Bräuning
patent: D462187 (2002-09-01), Koepke et al.
patent: 6471294 (2002-10-01), Dammermann et al.
patent: 6523898 (2003-02-01), Ball et al.
patent: D471042 (2003-03-01), Schmitz et al.
patent: D471370 (2003-03-01), Schmitz et al.
patent: D474346 (2003-05-01), Saylor 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: 6598251 (2003-07-01), Habboub et al.
patent: 6626494 (2003-09-01), Yoo
patent: 6669301 (2003-12-01), Funk et al.
patent: 6688687 (2004-02-01), Chu
patent: 6688690 (2004-02-01), Watson et al.
patent: 6698833 (2004-03-01), Ball et al.
patent: 6709058 (2004-03-01), Diffrient
patent: 6755467 (2004-06-01), Chu
patent: D494792 (2004-08-01), Schmitz et al.
patent: 6908159 (2005-06-01), Prince et al.
patent: 6913315 (2005-07-01), Ball et al.
patent: 2001/0030457 (2001-10-01), Gregory
patent: 2002/0043841 (2002-04-01), Giacinto
patent: 2002/0060492 (2002-05-01), Nagamitsu et al.
patent: 2002/0096920 (2002-07-01), Watson et al.
patent: 2002/0190564 (2002-12-01), Coffield et al.
patent: 2003/0001425 (2003-01-01), Koepke et al.
patent: 2004/0124679 (2004-07-01), Teppo et al.
patent: 1315186 (1993-03-01), None
patent: 201 00 569 (2001-04-01), None
patent: 0 154 582 (1985-09-01), None
patent: 2 267 726 (1974-04-01), None
patent: 2 165 445 (1985-09-01), None
patent: WO 93/25121 (1993-12-01), None
patent: WO 00/22961 (2000-04-01), None
patent: WO 00/74531 (2000-12-01), None
Digital image of “Ypsilon” by Vitra, date unknown.
Digital image of “Project 2000” by Sitag, date unknown.
Digital image of “Fluid” by allseating, date unknown.
Digital image of “HAG H05” by HAG, date unknown.
Digital image of “Konca” by Kastel, date unknown.
Digital image of “Vigor”/ Topdeq, date unknown.
Digital image of “NetWeb”/Topdeq, date unknown.
Digital image of “Lucy” by Vecta, date unknown.
Digital image of “Open up”/Cairo, date unknown.
Digital image of “IB Office” Seating by Bieffe, date unknown.
Digital image of “Freedom” by Humanscale, date unknown.
Digital image of “Cordo” by Klöber, date unknown.
Copy of Digital images of “Please” by Steelcase, date unknown.
“X99 Haworth®” brochure, date unknown.
“Ypsilon vitra.” brochure, date unknown.
Izzydesign “Maxwell” brochure, date unknown.
Search Report from Great Britain Application No. GB 0414694.0, dated Sep.
Aerts Chad D.
Aldrich John F.
Hill Christopher C.
Neubert Nicolai
Plikat Claudia
Barfield Anthony D.
Herman Miller Inc.
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