Patents by Inventor Harold R. S. Page

Harold R. S. Page 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).

  • Waste water treatment
    Patent number: 4216089
    Abstract: Gases are dissolved in aqueous liquids and sludges by employing the preliminary step of subjecting the liquids to a reduced pressure to remove incidental gases dissolved or contained therein, and then dissolving the required gases therein. The invention is of particular utility in the oxidative treatment of surface waters, waste waters or sewage, in which the latter are first de-gassed before being oxygenated. The degassing can be effected by, for example, using a siphon.
    Type: Grant
    Filed: May 17, 1978
    Date of Patent: August 5, 1980
    Assignee: Water Research Centre
    Inventors: Arthur G. Boon, Harold R. S. Page