Patents Assigned to Knoll International
  • Patent number: 4250676
    Abstract: A panel interconnecting and upholstery-retaining connection for a tubular frame including a tubular insert that extends into the frame. A tubular upholstery retainer extends into the tubular insert and holds the upholstery material in place, which is sandwiched between the tubular insert and the upholstery retainer. A wedging device bears against the inside of the tubular insert and urges the insert against the tubular frame. The wedging device may carry a foot for supporting the tubular frame above a floor and a strap for interconnecting one panel with another. The upholstery retainer may include a door hinge or door catch.
    Type: Grant
    Filed: September 19, 1978
    Date of Patent: February 17, 1981
    Assignee: Knoll International Inc.
    Inventor: Benedict F. Presby
  • Patent number: 4235408
    Abstract: A swinging-seat swivel chair includes a vertical stud that carries a horizontal hollow pin at the end of which are pivoted two supporting arms for a seat. A torsion bar is housed in the interior of the pin with one end coupled to the pin and the other end coupled to the arm at the other end of the torsion bar. A rigid longitudinal member is included substantially parallel to and spaced from the pin and rigidly interconnecting the arms.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: November 25, 1980
    Assignee: Knoll International, Inc.
    Inventor: Richard F. Sapper
  • Patent number: 4203624
    Abstract: A writing tablet for a chair arm is mounted by a pivot swivel block to the arm for pivotal movement about a first axis. A tablet panel support is mounted to the pivotal swivel block for pivotal movement about a second axis perpendicular to the first axis. Semicircular slots are included in the pivot swivel block and tablet panel support in registry with each other, and a ball rides in the slots to limit the movement of the tablet panel support about the second axis.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: May 20, 1980
    Assignee: Knoll International, Inc.
    Inventor: Richard B. Hopkins
  • Patent number: 4102549
    Abstract: Apparatus for adjusting a back support of a chair which includes a bracket through which the back support slides. A position stop of flexible sheet material is mounted adjacent to the back support. A stop member is included on the back support, while the position stop includes apertures therein. The stop member is engaged in one of the apertures to lock the back support in position. To move the back support, the position stop is flexed to a disengaged position in which the stop member is free from the apertures. After being moved, the position stop is allowed to return to the engaged position in which the stop member is engaged within another aperture.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: July 25, 1978
    Assignee: Knoll International, Inc.
    Inventors: Andrew I. Morrison, Bruce R. Hannah
  • Patent number: 4081100
    Abstract: A spring-loaded drawer partition formed of plate members that slide along opposed side walls of a drawer, each including tab extensions extending therefrom toward the inside of the drawer and constituting spring members. A box member extends between the plate members, having open ends which house the tab extensions thereinside. Stop members are included inside the box member, bearing against the tab extensions, yieldably biasing the plate members against the side walls of the drawer.
    Type: Grant
    Filed: June 18, 1976
    Date of Patent: March 28, 1978
    Assignee: Knoll International, Inc.
    Inventor: Benedict F. Presby
  • Patent number: 3972098
    Abstract: An method item of furniture in which tufting buttons have both a decorative tufting effect and serve to attach a padding to a frame. The tufting buttons have internally threaded shank portions, and screws are threaded into such shank portions to secure the padding to a frame. A cushion assembly is provided by forming ridges on the shank portions of the tufting buttons and utilizing washer-type fasteners that are attached to the shank portions to hold the tufting buttons in place.A methods of producing an upholstered item of furniture that utilizes a flexible plate which is substantially flat in the non-flexed state and which is flexed to and held in a desired curvature in the completed item of furniture. The plate is upholstered in the substantially flat, non-flexed state. Thereafter the upholstered plate is flexed to a desired curvature and secured in its flexed state.
    Type: Grant
    Filed: September 26, 1973
    Date of Patent: August 3, 1976
    Assignee: Knoll International, Inc.
    Inventors: Andrew I. Morrison, Bruce R. Hannah
  • Patent number: 3951453
    Abstract: A seating device includes a base portion and at least one top cushion movably positioned on the base portion. An insert of relatively heavier material than that of the cushion is placed in the lower portion of the cushion to maintain the latter in a selected position on the base while the seating device is in use. The top cushion may be an arm cushion, a back cushion or a head cushion, and is made from foam, cotton-wool or the like. The insert in the lower portion of the top cushion may be of a loose, pourable granulate material such as sand, and this material may be contained in a partitioned cover to maintain the material in a desired distribution. Additional holding power for maintaining the top cushion in a selected position can be obtained by affixing a VELCRO fastener to the underside of the top cushion.
    Type: Grant
    Filed: December 5, 1974
    Date of Patent: April 20, 1976
    Assignee: Knoll International, Inc.
    Inventor: Otto Zapf
  • Patent number: D243896
    Type: Grant
    Filed: October 24, 1974
    Date of Patent: April 5, 1977
    Assignee: Knoll International, Inc.
    Inventor: Otto Zapf
  • Patent number: D251526
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: April 10, 1979
    Assignee: Knoll International, Inc.
    Inventor: Otto W. Zapf
  • Patent number: D252431
    Type: Grant
    Filed: April 6, 1977
    Date of Patent: July 24, 1979
    Assignee: Knoll International, Inc.
    Inventor: Murray C. Pfister
  • Patent number: D255073
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: May 27, 1980
    Assignee: Knoll International, Inc.
    Inventor: Otto W. Zapf
  • Patent number: D255188
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: June 3, 1980
    Assignee: Knoll International, Inc.
    Inventor: Otto W. Zapf
  • Patent number: D255189
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: June 3, 1980
    Assignee: Knoll International, Inc.
    Inventor: Otto W. Zapf
  • Patent number: D255190
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: June 3, 1980
    Assignee: Knoll International, Inc.
    Inventor: Otto W. Zapf
  • Patent number: D256532
    Type: Grant
    Filed: August 25, 1977
    Date of Patent: August 26, 1980
    Assignee: Knoll International, Inc.
    Inventor: Gae Aulenti