Patents Assigned to Wilkhahn, Wilkening & Hahne GmbH & Co.
  • Patent number: 10292489
    Abstract: A table has at least one table leg and a table top, the at least one table leg being pivotable relative to the table top, between an unfolded position and a folded position, about at least one first joint, wherein a strut is held on the table leg so that, at a first end, it is pivotable about a second joint, is provided for fixation of the table leg, and in the unfolded position of the table leg, it is operatively connected to the table top at a second end, opposite the first end. The table leg has a stop limiting the angle between the table leg and the table top in the unfolded position, such that the strut comes into frictional contact with the second end on a support surface held on the table top.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: May 21, 2019
    Assignee: WILKHAHN WILKENING + HAHNE GMBH + CO. KG
    Inventor: Andreas Storiko
  • Patent number: 9713380
    Abstract: A chair includes a deformable seat shell forming a seat part and a backrest, and further includes a frame, the seat part being connected to the frame by means of a first pivot joint and the backrest being connected to the frame by means of a second pivot joint, the pivot joints allowing a twisting of the seat part and of the backrest relative to the frame caused by a deformation of the seat shell. The second pivot joint is connected to the backrest centrally in relation to the transverse direction of the chair.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: July 25, 2017
    Assignee: Wilkhahn Wilkening + Hahne GmbH + Co.
    Inventors: Carsten Gehner, Michael Englisch
  • Patent number: 9700138
    Abstract: A seating furniture product, with a support surface unit which forms a seat part and a backrest connected directly to the seat part, and with a frame, wherein the seat part is connected to the frame by means of a swivel joint allowing a rotation about a swivel axis aligned transversely to the seating furniture product and the backrest is connected to the frame by a fastening point, is characterized in that the distance between the fastening point and the swivel joint can be changed in terms of the vertical direction of the seating furniture product, such that changing this distance is accompanied by a change in the inclination alignment of the seat part.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: July 11, 2017
    Assignee: Wilkhahn Wilkening + Hahne GmbH + Co.
    Inventors: Andreas Rechtien, Detlef Trutwig, Carsten Gehner
  • Patent number: 9504330
    Abstract: A chair includes a seat and a seat mechanism, the seat being coupled to the seat mechanism in such a manner that the seat is, in a front end region, pivotably supported about a first axis of rotation orientated parallel with the axis of a user's knees. In its front end region, the seat is also supported on the seat mechanism so as to be rotatable about a second axis of rotation orientated perpendicularly to the first axis of rotation.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: November 29, 2016
    Assignee: Wilkhahn Wilkening + Hahne GmbH + Co. KG
    Inventors: Carsten Gehner, Heiko Büttner
  • Patent number: 8025335
    Abstract: The invention relates to a chair with a seat, a base support and a backrest, wherein the seat is pivotably mounted on the base support and the backrest is pivotably mounted on the seat, and a first spring system is provided between the base support and the seat and a second spring system is provided between the seat and the backrest. Furthermore, means are provided for adjusting the spring behavior of the two spring systems so that the pivotability of the seat in relation to the base support and the pivotability of the backrest in relation to the seat can be adapted to different requirements, especially to users of different weights.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: September 27, 2011
    Assignee: Wilkhahn Wilkening + Hahne GmbH + Co. KG
    Inventor: Carsten Gehner
  • Patent number: 7770973
    Abstract: The invention relates to a chair with a seat, a base support and a backrest, wherein the seat is mounted on the base support so as to be pivotable about a first pivoting axis and the backrest is mounted on the seat so as to be pivotable about a second pivoting axis. The two pivoting axes are arranged so as to be displaceable relative to one another in order to be able to change the seat depth.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: August 10, 2010
    Assignee: Wilkhahn Wilkening + Hahne GmbH + Co. KG
    Inventors: Carsten Gehner, Michael Englisch
  • Patent number: 7637570
    Abstract: The chair according to the invention has a seat and a seat mechanism, wherein the seat and the seat mechanism are formed so that, during the sideways pivoting movement of the seat, the one side of the seat is movable independently of the other side of the seat, wherein the seat is mounted so as to be pivotable about a pivoting or rotation axis lying parallel to the knee axis of the user.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: December 29, 2009
    Assignee: Wilkhahn Wilkening + Hahne GmbH + Co.
    Inventors: Erich Becker, Heiko Buettner, Carsten Gehner
  • Patent number: 5366274
    Abstract: A synchronous adjusting device for a chair is provided where the restoring movement of a back part is effected as a function of the weight of the user, a restoring moment occurring with the increase in inclination of the backrest. For this purpose, the back part is mounted rotatably relative to the seat part at a distance in height. The leaning force of the user at the back leaning point is counteracted by a restoring force in the lower region of the back part as a result of the articulated connection between the seat part and the back part.
    Type: Grant
    Filed: April 7, 1993
    Date of Patent: November 22, 1994
    Assignee: Wilkhahn Wilkening + Hahne GmbH + Co.
    Inventors: Hans Roericht, Horst Fleischmann, Franz Biggel, Burkhard Schmitz
  • Patent number: 5251958
    Abstract: A synchronous adjusting device is proposed as a chair mechanism for office chairs, seat furniture or the like, which is constructed extremely simply and with few mechanical components and which, if appropriate, can do without additional force accumulators. At the same time, the restoring movement of the back part will take place as a function of the weight of the user, a restoring moment occurring with the increase in inclination of the backrest. For this, the back part (7) is mounted rotatably relative to the seat part (5) at a distance in height. The leaning force (9) of the user at the back leaning point (10) is counteracted by a restoring force in the lower region of the back part as a result of the articulated connection between the seat part and the back part (7).
    Type: Grant
    Filed: August 29, 1991
    Date of Patent: October 12, 1993
    Assignee: Wilkhahn Wilkening & Hahne GmbH & Co.
    Inventors: Hans Roericht, Horst Fleischmann, Franz Biggel, Burkhard Schmitz
  • Patent number: 5232303
    Abstract: The invention relates to a connecting arrangement for a releasable and lockable connection between the upper end of a table leg and the underside of a table plate for assembly of a table. In this case a first connecting part provided with clamp bolts can be fixed on the upper end of the table leg and a second connecting part can be fixed on the underside of the table plate, this second connecting part having several bores and receiving holes adapted in size, number and distribution to the clamp bolts and containing an end plate with a clamp closure plate which is arranged flat above it and is rotatable relative thereto to engage the clamp bolts and firmly clamp the clamp bolts and attached table leg to the second connecting part and this connection can be released again. In this way a reliably stable and releasable connection is produced between table legs and at least one table plate with the possibility of assembling tables of any size from any number of table plates.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: August 3, 1993
    Assignee: Wilkhahn Wilkening + Hahne GmbH + Co.
    Inventor: Karl-Heinz Rubner
  • Patent number: D482205
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: November 18, 2003
    Assignee: Wilkhahn Wilkening & Hahne GmbH & Co.
    Inventors: Michael Englisch, Jörn Hübener, Torsten Wittenberg
  • Patent number: D609482
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: February 9, 2010
    Assignee: Wilkhahn Wilkening + Hahne GmbH & Co.
    Inventors: Michael Englisch, Anne-Katrin Sieferer
  • Patent number: D609926
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: February 16, 2010
    Assignee: Wilkhahn Wilkening + Hahne GmbH & Co.
    Inventor: Stefan Diez
  • Patent number: D610816
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: March 2, 2010
    Assignee: Wilkhahn Wilkening + Hahne GmbH & Co.
    Inventors: Marcus Keichel, Julia Laeufer
  • Patent number: D610817
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: March 2, 2010
    Assignee: Wilkhahn Wilkening + Hahne GmbH & Co.
    Inventor: Eric Degenhardt
  • Patent number: D428273
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: July 18, 2000
    Assignee: Wilkhahn Wilkening + Hahne GmbH + Co.
    Inventor: Herbert Ohl
  • Patent number: D709712
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: July 29, 2014
    Assignee: Wilkhahn Wilkening + Hahne GmbH & Co.
    Inventors: Markus Jehs, Jurgen Laub
  • Patent number: D834851
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: December 4, 2018
    Assignee: Wilkhahn Wilkening + Hahne GMBH & Co.
    Inventors: Markus Jehs, Jürgen Laub
  • Patent number: D845659
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: April 16, 2019
    Assignee: WILKHAHN WILKENING + HAHNE GMBH & CO.
    Inventor: Andreas Hess
  • Patent number: D862937
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: October 15, 2019
    Assignee: WILKHAHN WILKENING + HAHNE GMBH & CO.
    Inventor: Andreas Störiko