Patents Assigned to Wilkhahn Wilkening & Hahne
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Patent number: 10292489Abstract: 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: GrantFiled: August 29, 2017Date of Patent: May 21, 2019Assignee: WILKHAHN WILKENING + HAHNE GMBH + CO. KGInventor: Andreas Storiko
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Patent number: 9713380Abstract: 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: GrantFiled: March 11, 2015Date of Patent: July 25, 2017Assignee: Wilkhahn Wilkening + Hahne GmbH + Co.Inventors: Carsten Gehner, Michael Englisch
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Patent number: 9700138Abstract: 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: GrantFiled: February 12, 2016Date of Patent: July 11, 2017Assignee: Wilkhahn Wilkening + Hahne GmbH + Co.Inventors: Andreas Rechtien, Detlef Trutwig, Carsten Gehner
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Patent number: 9504330Abstract: 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: GrantFiled: February 21, 2012Date of Patent: November 29, 2016Assignee: Wilkhahn Wilkening + Hahne GmbH + Co. KGInventors: Carsten Gehner, Heiko Büttner
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Patent number: 8025335Abstract: 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: GrantFiled: February 2, 2010Date of Patent: September 27, 2011Assignee: Wilkhahn Wilkening + Hahne GmbH + Co. KGInventor: Carsten Gehner
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Patent number: 7770973Abstract: 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: GrantFiled: May 18, 2007Date of Patent: August 10, 2010Assignee: Wilkhahn Wilkening + Hahne GmbH + Co. KGInventors: Carsten Gehner, Michael Englisch
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Patent number: 7637570Abstract: 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: GrantFiled: January 16, 2008Date of Patent: December 29, 2009Assignee: Wilkhahn Wilkening + Hahne GmbH + Co.Inventors: Erich Becker, Heiko Buettner, Carsten Gehner
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Patent number: 5366274Abstract: 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: GrantFiled: April 7, 1993Date of Patent: November 22, 1994Assignee: Wilkhahn Wilkening + Hahne GmbH + Co.Inventors: Hans Roericht, Horst Fleischmann, Franz Biggel, Burkhard Schmitz
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Patent number: 5251958Abstract: 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: GrantFiled: August 29, 1991Date of Patent: October 12, 1993Assignee: Wilkhahn Wilkening & Hahne GmbH & Co.Inventors: Hans Roericht, Horst Fleischmann, Franz Biggel, Burkhard Schmitz
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Patent number: 5232303Abstract: 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: GrantFiled: April 15, 1991Date of Patent: August 3, 1993Assignee: Wilkhahn Wilkening + Hahne GmbH + Co.Inventor: Karl-Heinz Rubner
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Patent number: D482205Type: GrantFiled: September 23, 2002Date of Patent: November 18, 2003Assignee: Wilkhahn Wilkening & Hahne GmbH & Co.Inventors: Michael Englisch, Jörn Hübener, Torsten Wittenberg
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Patent number: D609482Type: GrantFiled: July 23, 2009Date of Patent: February 9, 2010Assignee: Wilkhahn Wilkening + Hahne GmbH & Co.Inventors: Michael Englisch, Anne-Katrin Sieferer
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Patent number: D609926Type: GrantFiled: April 15, 2009Date of Patent: February 16, 2010Assignee: Wilkhahn Wilkening + Hahne GmbH & Co.Inventor: Stefan Diez
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Patent number: D610816Type: GrantFiled: March 18, 2009Date of Patent: March 2, 2010Assignee: Wilkhahn Wilkening + Hahne GmbH & Co.Inventors: Marcus Keichel, Julia Laeufer
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Patent number: D610817Type: GrantFiled: March 18, 2009Date of Patent: March 2, 2010Assignee: Wilkhahn Wilkening + Hahne GmbH & Co.Inventor: Eric Degenhardt
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Patent number: D428273Type: GrantFiled: April 20, 1999Date of Patent: July 18, 2000Assignee: Wilkhahn Wilkening + Hahne GmbH + Co.Inventor: Herbert Ohl
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Patent number: D709712Type: GrantFiled: April 16, 2013Date of Patent: July 29, 2014Assignee: Wilkhahn Wilkening + Hahne GmbH & Co.Inventors: Markus Jehs, Jurgen Laub
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Patent number: D834851Type: GrantFiled: August 31, 2017Date of Patent: December 4, 2018Assignee: Wilkhahn Wilkening + Hahne GMBH & Co.Inventors: Markus Jehs, Jürgen Laub
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Patent number: D845659Type: GrantFiled: August 31, 2017Date of Patent: April 16, 2019Assignee: WILKHAHN WILKENING + HAHNE GMBH & CO.Inventor: Andreas Hess
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Patent number: D862937Type: GrantFiled: August 31, 2017Date of Patent: October 15, 2019Assignee: WILKHAHN WILKENING + HAHNE GMBH & CO.Inventor: Andreas Störiko