Patents by Inventor Romuald Franklin Ngamga

Romuald Franklin Ngamga 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).

  • Agglomerated zinc powder anode
    Patent number: 8039150
    Abstract: Zinc electrodes for use in batteries, the electrode containing an organic gelling agent, an organic binding agent, calcium zincate and an electro-active element. A method of manufacturing such electrodes, and use of such electrodes in primary and secondary batteries.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: October 18, 2011
    Assignee: Revoit Technology Ltd.
    Inventors: Trygve Burchardt, Romuald Franklin Ngamga
  • METHODS FOR CHARGING METAL-AIR CELLS
    Publication number: 20110199055
    Abstract: A method of charging a metal-air battery is provided. The method comprises charging the metal-air battery using one of constant current charging or constant voltage charging during a first portion of a charging cycle. The method further comprises detecting the occurrence of a condition. The method further comprises charging the metal-air battery using the other of the constant current charging or constant voltage charging during a second portion of the charging cycle after detecting the occurrence of the condition.
    Type: Application
    Filed: February 11, 2011
    Publication date: August 18, 2011
    Inventors: Trygve Burchardt, Romuald Franklin Ngamga
  • METHODS FOR CHARGING METAL-AIR CELLS
    Publication number: 20110199054
    Abstract: A method of charging a metal-air battery is provided. The method of charging a metal-air battery includes charging the metal-air battery using a charge profile. The method further includes applying a pulse charge to the metal-air battery. The method further includes returning to charging the metal-air battery using the charge profile after the pulse charge has been applied.
    Type: Application
    Filed: February 11, 2011
    Publication date: August 18, 2011
    Inventors: Trygve Burchardt, Romuald Franklin Ngamga
  • METAL-AIR FLOW CELL
    Publication number: 20100330437
    Abstract: A metal-air flow battery is provided that comprises a tank configured to contain an anode paste material; a reaction tube in fluid communication with the tank, the reaction tube comprising an air electrode, an outer surface configured to allow air to enter the reaction tube, and an internal passage; and a mechanism for moving the anode paste material through the internal passage of the reaction tube.
    Type: Application
    Filed: June 29, 2010
    Publication date: December 30, 2010
    Inventors: Trygve Burchardt, James P. McDougall, Romuald Franklin Ngamga, Heinz Studiger, Wade Guindy