Chairs and seats – Bottom or back with means to alter contour – Providing support for lower back region
Reexamination Certificate
2005-04-26
2005-04-26
Barfield, Anthony D. (Department: 3636)
Chairs and seats
Bottom or back with means to alter contour
Providing support for lower back region
C297S284100, C074S50150R, C074S506000
Reexamination Certificate
active
06883867
ABSTRACT:
The invention relates to an apparatus for adjusting the arching of a resiliently flexible support element for supporting the pelvic and/or lumbar vertebrae in a back rest of a seat including an arching means. According to the invention, a flexible support element is suspended in a seat by multiple guide rods, and a Bowden cable is connected to the support element in such a manner as to arch the support element when traction is applied thereto. A restoring spring draws the support element from its arched position. An intermediate spring is used in combination with the Bowden cable such that the support element resiliently yields to major pressure. Another spring provides compensating forces to counteract the arching adjustment, thereby substantially reducing the force to be exerted in order to adjust the degree of arching.
REFERENCES:
patent: 1182854 (1916-05-01), Poler
patent: 2756809 (1956-07-01), Endersen
patent: 2843195 (1958-07-01), Barvaeus
patent: 2942651 (1960-06-01), Binding
patent: 3378299 (1968-04-01), Sandor
patent: 3490084 (1970-01-01), Schuster
patent: 3492768 (1970-02-01), Schuster
patent: 3724144 (1973-04-01), Schuster
patent: 3762769 (1973-10-01), Poschl
patent: 4014422 (1977-03-01), Morishita
patent: 4136577 (1979-01-01), Borgersen
patent: 4153293 (1979-05-01), Sheldon
patent: 4156544 (1979-05-01), Swenson et al.
patent: 4182533 (1980-01-01), Arndt et al.
patent: 4295681 (1981-10-01), Gregory
patent: 4313637 (1982-02-01), Barley
patent: 4316631 (1982-02-01), Lenz et al.
patent: 4354709 (1982-10-01), Schuster
patent: 4390210 (1983-06-01), Wisniewski et al.
patent: 4449751 (1984-05-01), Murphy et al.
patent: 4452485 (1984-06-01), Schuster
patent: 4465317 (1984-08-01), Schwarz
patent: 4494709 (1985-01-01), Takada
patent: 4541670 (1985-09-01), Morgenstern et al.
patent: 4553449 (1985-11-01), Korn
patent: 4555140 (1985-11-01), Nemoto
patent: 4556251 (1985-12-01), Takagi
patent: 4561606 (1985-12-01), Sakakibara et al.
patent: 4564235 (1986-01-01), Hatsutta et al.
patent: 4565406 (1986-01-01), Suzuki
patent: 4576410 (1986-03-01), Hattori
patent: 4601514 (1986-07-01), Meiller
patent: 4602819 (1986-07-01), Morel
patent: 4627661 (1986-12-01), Ronnhult et al.
patent: 4632454 (1986-12-01), Naert
patent: 4671569 (1987-06-01), Kazaoka et al.
patent: 4676550 (1987-06-01), Neve De Mevergnies
patent: 4679848 (1987-07-01), Spierings
patent: 4730871 (1988-03-01), Sheldon
patent: 4880271 (1989-11-01), Graves
patent: 4909568 (1990-03-01), Dal Monte
patent: 4950032 (1990-08-01), Nagasaka
patent: 4951995 (1990-08-01), Teppo et al.
patent: 4957102 (1990-09-01), Tan et al.
patent: 4968093 (1990-11-01), Dal Monte
patent: 5005904 (1991-04-01), Clemens et al.
patent: 5007677 (1991-04-01), Ozawa et al.
patent: 5010780 (1991-04-01), Hatfield
patent: 5022709 (1991-06-01), Marchino
patent: 5026116 (1991-06-01), Dal Monte
patent: 5050930 (1991-09-01), Schuster et al.
patent: 5067365 (1991-11-01), Lauer
patent: 5076643 (1991-12-01), Colasanti et al.
patent: 5080434 (1992-01-01), Locher
patent: 5088790 (1992-02-01), Wainwright et al.
patent: 5137329 (1992-08-01), Neale
patent: 5174526 (1992-12-01), Kanigowski
patent: 5186412 (1993-02-01), Park
patent: 5197780 (1993-03-01), Coughlin
patent: 5215350 (1993-06-01), Kato
patent: 5217278 (1993-06-01), Harrison et al.
patent: 5286087 (1994-02-01), Elton
patent: 5299851 (1994-04-01), Lin
patent: 5335965 (1994-08-01), Sessini
patent: 5385531 (1995-01-01), Jover
patent: 5397164 (1995-03-01), Schuster et al.
patent: 5423593 (1995-06-01), Nagashima
patent: 5449219 (1995-09-01), Hay et al.
patent: 5452868 (1995-09-01), Kanigowski
patent: 5472261 (1995-12-01), Oplenskdal et al.
patent: 5474358 (1995-12-01), Maeyaert
patent: 5498063 (1996-03-01), Schuster et al.
patent: 5518294 (1996-05-01), Ligon, Sr. et al.
patent: 5553917 (1996-09-01), Adat et al.
patent: 5562324 (1996-10-01), Massara et al.
patent: 5567010 (1996-10-01), Sparks
patent: 5567011 (1996-10-01), Sessini
patent: 5588703 (1996-12-01), Itou
patent: 5609394 (1997-03-01), Ligon, Sr. et al.
patent: 5626390 (1997-05-01), Schuster et al.
patent: 5638722 (1997-06-01), Klingler
patent: 5651583 (1997-07-01), Klingler et al.
patent: 5651584 (1997-07-01), Chenot et al.
patent: 5704687 (1998-01-01), Klingler
patent: 5718476 (1998-02-01), De Pascal et al.
patent: 5758925 (1998-06-01), Schrewe et al.
patent: 5762397 (1998-06-01), Venuto et al.
patent: 5769491 (1998-06-01), Schwarzbich
patent: 5772281 (1998-06-01), Massara
patent: 5775773 (1998-07-01), Schuster et al.
patent: 5791733 (1998-08-01), Van Hekken et al.
patent: 5816653 (1998-10-01), Benson
patent: 5823620 (1998-10-01), Le Caz
patent: 5857743 (1999-01-01), Ligon, Sr. et al.
patent: 5868466 (1999-02-01), Massara et al.
patent: 5884968 (1999-03-01), Massara
patent: 5897168 (1999-04-01), Bartelt et al.
patent: 5911477 (1999-06-01), Mundell et al.
patent: 5913569 (1999-06-01), Klingler
patent: 5934752 (1999-08-01), Klingler
patent: 5975632 (1999-11-01), Ginat
patent: 5984407 (1999-11-01), Ligon, Sr. et al.
patent: 5988745 (1999-11-01), Deceuninck
patent: 6003941 (1999-12-01), Schuster, Sr. et al.
patent: 6007151 (1999-12-01), Benson
patent: 6030041 (2000-02-01), Hsiao
patent: 6036265 (2000-03-01), Cosentino
patent: 6045185 (2000-04-01), Ligon, Sr. et al.
patent: 6050641 (2000-04-01), Benson
patent: 6079783 (2000-06-01), Schuster, Sr. et al.
patent: 6092871 (2000-07-01), Beaulieu
patent: 6152531 (2000-11-01), Deceuninck
patent: 6152532 (2000-11-01), Cosentino
patent: 6158300 (2000-12-01), Klingler
patent: 6227617 (2001-05-01), Von Moller
patent: 6227618 (2001-05-01), Ligon, Sr. et al.
patent: 6254186 (2001-07-01), Falzon
patent: 6254187 (2001-07-01), Schuster, Sr. et al.
patent: 6270158 (2001-08-01), Hong
patent: 6296308 (2001-10-01), Cosentino et al.
patent: 6334651 (2002-01-01), Duan et al.
patent: 6447061 (2002-09-01), Klingler
patent: 6623076 (2003-09-01), Klingler
patent: 401 497 (1996-09-01), None
patent: 2040 794 (1971-07-01), None
patent: 29 47 472 (1980-08-01), None
patent: 2064 419 (1992-07-01), None
patent: 4220995 (1994-01-01), None
patent: 0 006 840 (1980-02-01), None
patent: 0 169 293 (1988-10-01), None
patent: 0 322 535 (1989-07-01), None
patent: 0 485 483 (1994-01-01), None
patent: 0 434 660 (1995-05-01), None
patent: 0 540 481 (1995-12-01), None
patent: 0 662 795 (1996-12-01), None
patent: 0 702 522 (1997-03-01), None
patent: 0 696 251 (1997-07-01), None
patent: 0 797 399 (1998-11-01), None
patent: 0 698 360 (2000-03-01), None
patent: 0 764 219 (2001-11-01), None
patent: 2 596 334 (1987-10-01), None
patent: 1 423 617 (1976-02-01), None
patent: 2013487 (1979-08-01), None
patent: 587924 (1978-02-01), None
patent: WO 0000064 (2000-01-01), None
Barfield Anthony D.
Donahue, III Dennis J M
Husch & Eppenberg LLC
Kang Grant D.
Schukra Geratebau AG
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