Patents by Inventor Francis X. Pink

Francis X. Pink 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).

  • Removal of contaminant metals from waste water
    Patent number: 6238571
    Abstract: A method for the removal of copper from waste waters includes providing a solution to be treated, the solution comprising copper; introducing a source of ferric ions and a source of ferrous ions into the solution; and adjusting the pH of the solution to promote formation of a copper-containing ferrite precipitate, whereby the solution is depleted in copper. In instances where the solution contains ferric ions, the method includes introducing a source of ferrous ions into the solution to obtain a solution comprising ferric ions and ferrous ions; and adjusting the pH of the solution to promote formation of a copper-containing ferrite precipitate, whereby the solution is depleted in copper.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: May 29, 2001
    Assignee: Massachusetts Institute of Technology
    Inventors: Ilhan Olmez, Francis X. Pink, Duran Karakas, Duane S. Boning
  • Method of non-destructively measuring the pressure of a gas in a closed vessel
    Patent number: 4370751
    Abstract: The pressure of a gas in a closed vessel can be non-destructively read by irradiating the closed vessel with x-rays. The irradiated gases in the vessel emit x-rays characteristic of various gases within the vessel. The characteristic x-rays, which pass out of the vessel, are discriminated and their intensity count converted to a pressure reading.
    Type: Grant
    Filed: January 9, 1981
    Date of Patent: January 25, 1983
    Assignee: GTE Laboratories Incorporated
    Inventors: Francis X. Pink, Carmine Persiani, Paul Lublin