Patents Assigned to Anderson Bio-Bed, Incorporated
  • Apparatus for imparting continuous motion to a mattress
    Patent number: 6681427
    Abstract: The apparatus includes an elastic layer for supporting a person. A plurality of rows of expandable and retractable tubes are embedded in the elastic layer. A source of compressed air and a control system are provided for sequentially injecting and releasing air into and from a first set of alternate tubes and then into and from a second set of alternate tubes for imparting continuous motion to the elastic layer.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: January 27, 2004
    Assignee: Anderson Bio-Bed, Incorporated
    Inventors: Brenda K. Anderson, James A. Blackwell