Patents Assigned to Center for Design Research & Development N.V.
  • Patent number: 7156459
    Abstract: A stackable chair has a backrest mounted on back supports by resilient mount units for tilting between an upright position and a tilted-back position. Each mount unit includes a rigid coupling member having a lower portion received within an upper end portion of the respective back support and pivotally joined to the respective back support and having an upper portion received within and affixed to a socket in the backrest. A compression spring received within the upper end portion of the back support and engaged between the lower portion of the coupling member and a front wall of the respective back support biases the backrest to the upright position. An armrest is slidably supported on an armrest support for simultaneous and controlled pivotal movement about a substantially vertical pivot axis of a rearward part of the armrest relative to a forward part of the armrest and translatory movement in a plane perpendicular to the pivot axis. Movements of the armrests permit dense stacking of the chairs.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: January 2, 2007
    Assignee: Center for Design Research and Development N.V. c/o Open Ark B.V.
    Inventor: Emilio Ambasz
  • Patent number: 7114782
    Abstract: A chair includes: a hollow frame including, on each lateral side of the chair, a front, a back, a bottom, a front bend arranged between the front and the bottom, and a back bend arranged between the back and the bottom; a seat attached to the front of the frame; a seat back attached to the back of the frame; at least one front stiffener insert arranged inside the frame at the front bend and extending along a partial length of the front and the bottom; and at least one back stiffener insert arranged inside the frame at the back bend and extending along a partial length of the back and the bottom. The front stiffener inserts and the back stiffener inserts stiffen the frame relative to a frame without such inserts. The seat back and the seat may be movable independently of each other relative to the bottom of the frame.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: October 3, 2006
    Assignee: Center for Design Research and Development N.V.
    Inventor: Emilio Ambasz
  • Patent number: 6481789
    Abstract: A stackable chair has a frame with a tubular crosspiece, to each end of which a monolithic casting having legs and a backrest support—and, optionally, an armrest—is attached by means of an integral connecting boss received within the crosspiece and held in place by a connector pin. The backrest supports receive a backrest that pivots between an upright position, to which it is biased by a spring mechanism, and a rearwardly tilted position. The range of tilting motion is limited by a stop pin on the backrest and a stop groove in the backrest support. A seat is mounted on the crosspiece, either in a fixed position or for tilting to an upright position. Chairs with tilting seats include seat supports having diametrically opposite slots that receive projecting portions of the connecting pins. The connector pins slidably engage the sides of the slots to hold the seat supports in place on the crosspiece axially.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: November 19, 2002
    Assignee: Center for Design Research and Development N.V.
    Inventor: Emilio Ambasz
  • Patent number: 6478379
    Abstract: A chair has a pair of spaced-apart back support mounting members, a lower back support adapted to support the lower portion of the back of a person seated on the chair and mounted on the back support mounting members for pivotal movement about a pivot axis located at substantially the vertical centerline of the lower back support, and an upper back support adapted to support the upper portion of the back of a person seated on the chair and mounted on the back support mounting members for pivotal movement about a pivot axis located at substantially the vertical centerline of the upper back support.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: November 12, 2002
    Assignee: Center For Design Research and Development N.V.
    Inventor: Emilio Ambasz
  • Patent number: 5944382
    Abstract: Adjustable seating has a frame, a seat bottom mounted on the frame so as to slide forwardly and rearwardly, and a seat back mounted on the frame so as to slide upwardly and downwardly and also to tilt rearwardly from a resiliently restrained upright position. A lumbar back is mounted on the frame between the seat bottom and seat back so as to move generally in coordination with movements of the seat bottom and seat back. The lumbar back provides good support for the lumbar portion of the body of a person seated in the seating in all postures and all positions of the seat bottom and seat back.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: August 31, 1999
    Assignee: Center for Design Research and Development N.V.
    Inventor: Emilio Ambasz
  • Patent number: 5108149
    Abstract: Adjustable seating comprises a frame having a seat-supporting portion and a back-supporting portion, a seat bottom mounted on the seat-supporting portion for movement between rearward and forward positions and a seat back mounted on the back-supporting portion by at least one resilient articulating linkage for tilting movement independently of the position of the seat bottom. The seat back is connected to the seat bottom by a flexible but non-extensible coupling member and is slidable up and down on an upper linkage member of the articulating mechanism so that when the seat bottom moves forwardly or backwardly, the seat back moves downwardly or upwardly, respectively, in correspondence with the movements of the seat bottom. A configuration control spring biases the seat back/bottom to an upward/rearward configuration.
    Type: Grant
    Filed: November 2, 1990
    Date of Patent: April 28, 1992
    Assignee: Center for Design Research and Development N.V
    Inventor: Emilio Ambasz
  • Patent number: D435977
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: January 9, 2001
    Assignee: Center for Design Research and Development N.V.
    Inventor: Emilio Ambasz
  • Patent number: D504245
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: April 26, 2005
    Assignee: Center for Design Research and Development N.V.
    Inventor: Emilio Ambasz
  • Patent number: D440784
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: April 24, 2001
    Assignee: Center for Design Research and Development N.V.
    Inventor: Emilio Ambasz
  • Patent number: D505278
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: May 24, 2005
    Assignee: Center For Design Research and Development N.V.
    Inventor: Emilio Ambasz
  • Patent number: D508338
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: August 16, 2005
    Assignee: Center for Design Research and Development N.V.
    Inventor: Emilio Ambasz
  • Patent number: D452387
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: December 25, 2001
    Assignee: Center for Design Research and Development N.V.
    Inventor: Emilio Ambasz
  • Patent number: D284048
    Type: Grant
    Filed: April 15, 1983
    Date of Patent: June 3, 1986
    Assignee: Center for Design Research and Development N.V.
    Inventors: Emilio Ambasz, Giancarlo Piretti
  • Patent number: D495891
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: September 14, 2004
    Assignee: Center For Design Research And Development N.V.
    Inventor: Emilio Ambasz
  • Patent number: D353268
    Type: Grant
    Filed: October 19, 1992
    Date of Patent: December 13, 1994
    Assignee: Center for Design Research and Development N.V.
    Inventor: Emilio Ambasz
  • Patent number: D388258
    Type: Grant
    Filed: September 19, 1996
    Date of Patent: December 30, 1997
    Assignee: Center for Design Research & Development N.V.
    Inventor: Emilio Ambasz
  • Patent number: D401089
    Type: Grant
    Filed: October 3, 1996
    Date of Patent: November 17, 1998
    Assignee: Center for Design Research and Development N.V.
    Inventor: Emilio Ambasz
  • Patent number: D401794
    Type: Grant
    Filed: October 3, 1996
    Date of Patent: December 1, 1998
    Assignee: Center for Design Research and Development N.V.
    Inventor: Emilio Ambasz
  • Patent number: D408180
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: April 20, 1999
    Assignee: Center for Design Research and Development N.V.
    Inventor: Emilio Ambasz
  • Patent number: D419800
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: February 1, 2000
    Assignee: Center for Design Research and Development N.V.
    Inventor: Emilio Ambasz