Patents by Inventor Graham Fairbrass

Graham Fairbrass 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).

  • Stair cleaning device
    Patent number: 5377375
    Abstract: A stair cleaning device intended for cleaning the steps and risers of stairs and other confined areas comprises three heads driven by a motor and a belt and pulley system. The belt is toothed on one side and not on the other side so that some slippage can occur. The advantages of this is improved operational comfort and less likelihood of damage to the drive system.
    Type: Grant
    Filed: February 9, 1994
    Date of Patent: January 3, 1995
    Assignee: BTR plc
    Inventors: Andrew Holman, Graham Fairbrass