Patents by Inventor Eustaquio Mafra

Eustaquio Mafra 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).

  • Patent number: 5988361
    Abstract: A split load cradle for conveyor belts comprised of two pipes (1 and 2) is disclosed. The longer pipe (1) incorporates vertical arms (3, 4 and 5) having an upper ends obliquely facing each other wherein the end rolls (11) of the load cradle (10) are pivoted. Between the shorter arm (5) and the shorter arm (4) an intermediary roll (12) is also pivoted between. The second shorter pipe (2) is just like the first longer pipe (1). Both longer and shorter pipes (1 and 2) are longitudinally split in their lower part by a narrow slot (6) and fit said pipes around and axially into another pipe (7) having a lower diameter. This arrangement is attached to the structure (8) of the conveyor belt (T).
    Type: Grant
    Filed: January 14, 1998
    Date of Patent: November 23, 1999
    Assignee: Companhia Vale Do Rio Doce
    Inventors: Renato Antonio Giacomin, Antonio Carlos De Oliveira Santana, Geraldo Magela De Azevedo, Edson Carlos Da Silva, Eustaquio Mafra