Patents Assigned to Wei Ri Healthy Chair Co.
  • Chair structure
    Patent number: 5251615
    Abstract: An improved chair structure includes a frame having a vertical portion and a horizontal portion which is mounted on a body. A plurality of flexible supports are arranged across the vertical frame portion and the horizontal frame portion and a first line of rollers and a second line of rollers are arranged parallel to each other and perpendicular to the flexible supports in the vertical frame portion, while a third line and a fourth line of rollers are similarly arranged in the horizontal frame portion.
    Type: Grant
    Filed: July 16, 1992
    Date of Patent: October 12, 1993
    Assignee: Wei Ri Healthy Chair Co.
    Inventor: Ruey C. Sheen