Patents by Inventor Mervyn R. Ogston

Mervyn R. Ogston 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).

  • Compact apparatus for oxygen dissolution & distribution
    Publication number: 20010045673
    Abstract: A method and apparatus for dissolving oxygen in water is provided. The method comprises introducing a supply of oxygen containing gas into a pressurized stream of water to produce a two phase flow and reducing the gas bubble size in the flow allowing time for mass transfer between the bubbles and the water.
    Type: Application
    Filed: February 21, 2001
    Publication date: November 29, 2001
    Inventors: Mervyn R. Ogston, Ross Ellen
  • Wastewater treatment
    Patent number: 5332502
    Abstract: A method for efficiently treating wastewater by aerobic digestion whereby on-site oxygen generating equipment continually provides a predetermined quantity of dissolved oxygen to the wastewater, the dissolved oxygen content being maintained at a predetermined level during peak flows by air being dissolved into the wastewater. The method being used for upgrading the capacity of an existing plant to treat wastewater; increasing the scope of an existing plant to allow removal of biological nitrogen and/or phosphorus; and designing new wastewater treatment plants. Further efficiency is introduced by using methane produced, during subsequent anaerobic digestion of the wastewater, to fuel compressors or the like which provide the air to the wastewater.
    Type: Grant
    Filed: June 4, 1993
    Date of Patent: July 26, 1994
    Assignee: The Commonwealth Industrial Gases Ltd.
    Inventors: Denys A. Wickens, Brian J. Johnson, Mervyn R. Ogston