Patents by Inventor Hyman L. Zelkowitz

Hyman L. Zelkowitz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Table top assembly
    Patent number: 4482119
    Abstract: A support for a table top that is positioned upon a pedestal, to prevent tilting of the table top. A pin-holding plate, secured to the underside of the table top, includes a plurality of pins attached thereto which extend downwardly and which are slidably positioned within corresponding sleeves held by a plate positioned within a recess in the top of a pedestal.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: November 13, 1984
    Assignee: Knoll International, Inc.
    Inventors: Hyman L. Zelkowitz, Jeffrey D. Crawford, Lucia Mercer
  • Apparatus and method for upholstering a rigid chair shell
    Patent number: 4465534
    Abstract: An apparatus and method for upholstering a rigid chair shell is disclosed. A continuous, generally C-shaped track is utilized about the peripheral edge of the shell, opening rearwardly thereof to receive a retaining element attached about the peripheral edge of the covering material. The retaining element is constructed from a strip of tubular flexible material with an integral flap member circumferentially overlying at least part of the tubular strip and accepting the track edge therebetween. The inside surface of the outer end of the flap member is attached to the inside surface of the edge of the cover or fabric and, after suitable cushioning is attached to the front surface of the shell, the covering is placed over the cushioning and rolled about the retaining element which is snapped into the C-shaped track around the periphery of the shell to hold the covering thereon.
    Type: Grant
    Filed: November 28, 1983
    Date of Patent: August 14, 1984
    Assignee: Knoll International, Inc.
    Inventor: Hyman L. Zelkowitz
  • Apparatus and method for upholstering a rigid chair shell
    Patent number: 4357723
    Abstract: An apparatus and method for upholstering a rigid chair shell is disclosed. A continuous, generally C-shaped track is utilized about the peripheral edge of the shell, opening rearwardly thereof to receive a retaining element attached about the peripheral edge of the covering material. The retaining element is constructed from a strip of tubular flexible material with an integral flap member circumferentially overlying at least part of the tubular strip and accepting the track edge therebetween. The inside surface of the outer end of the flap member is attached to the inside surface of the edge of the cover or fabric and, after suitable cushioning is attached to the front surface of the shell, the covering is placed over the cushioning and rolled about the retaining element which is snapped into the C-shaped track around the periphery of the shell to hold the covering thereon.
    Type: Grant
    Filed: May 18, 1979
    Date of Patent: November 9, 1982
    Assignee: Knoll International, Inc.
    Inventor: Hyman L. Zelkowitz