Patents by Inventor Ian H. Sparrow

Ian H. Sparrow 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).

  • Dry laid floors
    Patent number: 4682458
    Abstract: The floor is composed of parallel spaced beams (11) having flanges (12) and blocks (13) of polystyrene foam which are laid on the flanges to bridge the gaps between the beams. Boards (26) are laid on the polystyrene blocks, and are supported by the blocks, which form load-bearing members of the floor. The blocks may have flanged portions (14) extending over the beams, so as to provide heat insulation.
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: July 28, 1987
    Assignee: Trent Jetfloor Limited
    Inventor: Ian H. Sparrow