Patents by Inventor Alan Blake

Alan Blake 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).

  • Room air cleansing using hydroponic plants
    Patent number: 6727091
    Abstract: The plants are disposed on a near-vertical matrix panel of porous or fibrous inert material, in which the roots of the plants are embedded. Hydroponic water trickles down the panel, keeping the roots wet. A fan draws the air to be treated horizontally through the panel. The unit freshens stale air in a room. It may be provided as a wall-mounted unit, or as a self-standing tower unit.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: April 27, 2004
    Assignee: University of Guelph
    Inventor: Alan Blake Darlington
  • Plant based system for abatement of gaseous ammonia contamination
    Publication number: 20040063194
    Abstract: The air in a room can be cleaned of ammonia by passing the air through green plants grown hydroponically. The air passes through a falling curtain of droplets of the hydroponic water, whereby the ammonia goes into solution in the water. Microbes colonised on the roots of the green plants break down the ammonia in the hydroponic water, and assimilate the nitrogen into the plant tissue.
    Type: Application
    Filed: October 29, 2003
    Publication date: April 1, 2004
    Inventors: Alan Blake Darlington, Stefan Richard
  • ROOM AIR CLEANSING USING HYDROPONIC PLANTS
    Publication number: 20030224507
    Abstract: The plants are disposed on a near-vertical matrix panel of porous or fibrous inert material, in which the roots of the plants are embedded. Hydroponic water trickles down the panel, keeping the roots wet. A fan draws the air to be treated horizontally through the panel. The unit freshens stale air in a room. It may be provided as a wall-mounted unit, or as a self-standing tower unit.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 4, 2003
    Inventor: Alan Blake Darlington