Patents by Inventor José Fernando Leite Marques

José Fernando Leite Marques 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).

  • Grate bar for pelletizing and sintering furnaces
    Patent number: 6217318
    Abstract: “AN IMPROVEMENT IN A GRATE BAR FOR PELLETIZING AND SINTERING FURNACES” comprised of a single body (10) provided with a higher horizontal girder (1) of rectangular cross-section supported in its ends by I-shaped legs (2) which are provided in their higher and lower edges, respectively, with an inverted V-shaped rim (3) and a square shoe (4); under the horizontal girder (1) a sub-girder (5) of an isosceles triangle cross-section is defined, the sides of which smoothly match with the sides of the girder (1) and make out a lower apex that defines a sharp edge pointing downwards referred to escape edge 7; wherein two transverse spacers (6) of rectangular cross-section also having escape edges (11) are provided adjacent to the girder (1).
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: April 17, 2001
    Assignee: Companhia Vale Do Rio Doce
    Inventors: Marcelo De Giovanni Pache De Faria, José Fernando Leite Marques