Patents by Inventor Robert H. Chang

Robert H. Chang 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: 4986616
    Abstract: A wire form computer stand with a drop-style keyboard retaining tray is disclosed. The system includes a track system pivotally mounted to the stand's enclosure and a tray is slidably mounted within the track for storage within the stand or positioning externally of the stand in a lowered position. This system permits use of a limited surface area, permits the mounting of a monitor at a convenient height, as well as the positioning of the keyboard at a lower more comfortable height. The system is fabricated from rod or wire bent to shape which is coated with a protective coating that also reduces friction at sliding surfaces. This method of fabrication is less expensive to manufacture and sale of the system.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: January 22, 1991
    Assignee: RC International, Inc.
    Inventors: Robert H. Chang, Peter A. Hayman
  • Patent number: 4722506
    Abstract: A printer stand is provided with a rear, chute-like paper guide. A pair of slidable trays are provided, with the upper tray serving as a store for blank input paper for a printer supported on the stand, while the lower tray serves as a store for the printed, output paper from the printer. The paper guide has a first, rear, inclined guide wall with a lower edge surface that is spaced rearwardly of the rearmost portion of the upper tray for proper clearance for the output paper on its passage to the lower tray. The paper guide also has a second guide wall spaced forwardly of the first wall, which together with the first wall forms the chute-like passageway for the output paper. The first and second guide walls are connected to the rear of the printer-stand supporting surface, and there are provided upper guide surfaces for directing the output paper toward the chute and away from the path of input paper.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: February 2, 1988
    Inventor: Robert H. Chang
  • Patent number: D303702
    Type: Grant
    Filed: January 5, 1987
    Date of Patent: September 26, 1989
    Inventor: Robert H. Chang