Patents by Inventor Isidoro N. Markus

Isidoro N. Markus 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).

  • Patent number: 4880273
    Abstract: A reclining chair is provided comprising a tubular frame and a seating secured to said frame by a flexible member. The flexible member slides over a raceway positioned lengthwise inside said tubular frame, whereby the seating is suspended from the frame. Means are provided to guide the motions of the flexible member and those of the seating.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: November 14, 1989
    Inventor: Isidoro N. Markus
  • Patent number: 4819986
    Abstract: A reclining chair is provided comprising a frame and a seating secured to said frame by a flexible member. The flexible member passes over and is captured by rolls whereby the seating is suspended from the frame. The flexible member may be affixed at its ends to the frame or the seating and the rolls are affixed to the other of the frame and seating. The frame may be hollow and the flexible members and/or rolls may be positioned within the frame.
    Type: Grant
    Filed: July 12, 1988
    Date of Patent: April 11, 1989
    Inventor: Isidoro N. Markus
  • Patent number: 4591214
    Abstract: A cabinet of the type having an opening includes a panel which is pivotable between opening-blocking and opening-unblocking positions. The panel is slidable into the cabinet from its unblocking position along parallel spaced tracks, each of which includes a gear rack and a spur gear mounted thereon. An equalizer rod joins together the spur gears and is coupled to the panel to ensure free movement of the panel along the tracks. A tubing encloses the equalizer rod and is mounted for movement with that rod. The equalizer tube is coupled at opposite ends thereof to the tracks to prevent pivoting of the tube. Hinges are mounted to the tubing for supporting the panel for its pivotable movement.
    Type: Grant
    Filed: March 1, 1985
    Date of Patent: May 27, 1986
    Assignee: Knoll International, Inc.
    Inventors: Robert E. Reuter, Isidoro N. Markus
  • Patent number: D294311
    Type: Grant
    Filed: October 16, 1985
    Date of Patent: February 23, 1988
    Inventor: Isidoro N. Markus
  • Patent number: D303881
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: October 10, 1989
    Inventor: Isidoro N. Markus