Patents by Inventor Helio Cavalcante Lopes de Albuquerque

Helio Cavalcante Lopes de Albuquerque 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).

  • Container made of aluminum and stainless steel for forming self-baking electrodes for use in low electric reduction furnaces
    Patent number: 6625196
    Abstract: The present invention relates to a self-baking electrode for use in low electric reduction furnaces, and refers particularly to a container (1) for the formation of self-baking electrodes to be used in low electric reduction furnaces, allowing the manufacture of silicon alloys with iron content as low as 0.25%, The container comprising an aluminum cylindrical casing (11) split in two parts containing therein a plurality of stainless steel ribs (12) uniformly attached perpendicularly along the inner surface of the casing (11) lengthwise along the cylindrical casing (11), wherein the cylindrical casing (11) is made of aluminum plates and the ribs (12) are made of stainless steel plates.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: September 23, 2003
    Assignee: Companhia Brasileira Carbureto de Calcio
    Inventor: Hélio Cavalcante Lopes de Albuquerque
  • Container made of stainless steel for forming self-baking electrodes for use in low electric reduction furnaces
    Patent number: 6590926
    Abstract: The present invention relates to a self-baking electrode for use in low electric reduction furnaces, and refers particularly to a container (1) for the formation of self-baking electrodes to be used in low electric reduction furnaces, allowing the manufacture of silicon alloys with iron content as low as 0.35%, the container comprising a cylindrical casing (11) split in two parts containing therein a plurality of ribs (12) uniformly attached perpendicularly along the inner surface of the casing (11) lengthwise along the cylindrical casing wherein the cylindrical casing (11) and ribs (12) are made of stainless steel plates.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: July 8, 2003
    Assignee: Companhia Brasileira Carbureto de Calcio
    Inventor: Hélio Cavalcante Lopes de Albuquerque
  • Container made of aluminum and stainless steel for forming self-baking electrodes for use in low electric reduction furnaces
    Publication number: 20020021737
    Abstract: The present invention relates to a self-baking electrode for use in low electric reduction furnaces, and refers particularly to a container (1) for the formation of self-baking electrodes to be used in low electric reduction furnaces, allowing the manufacture of silicon alloys with iron content as low as 0.25%, The container comprising an aluminum cylindrical casing (11) split in two parts containing therein a plurality of stainless steel ribs (12) uniformly attached perpendicularly along the inner surface of the casing (11) lengthwise along the cylindrical casing (11), wherein the cylindrical casing (11) is made of aluminum plates and the ribs (12) are made of stainless steel plates.
    Type: Application
    Filed: August 2, 2001
    Publication date: February 21, 2002
    Inventor: Helio Cavalcante Lopes de Albuquerque