Patents by Inventor Robert A. Mancini

Robert A. Mancini 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).

  • Method for controlling removal of hydrogen sulfide from gases
    Patent number: 4011304
    Abstract: Hydrogen sulfide is removed from a gas stream in an oxidation-reduction system by contacting the gas stream with an aqueous chelated iron solution in which the iron is in the ferric state to absorb hydrogen sulfide and convert it to elemental sulfur. The solution is regenerated by aeration. A redox electrode is used to monitor the oxidation potential of the solution, and corrective action is taken, as required, to maintain the concentration of ferric iron in the solution so as to achieve efficient removal of hydrogen sulfide.
    Type: Grant
    Filed: March 5, 1975
    Date of Patent: March 8, 1977
    Assignee: Air Resources, Inc.
    Inventors: Robert A. Mancini, David M. Cyr