Patents by Inventor Reynaldo Lopes Ferreira

Reynaldo Lopes Ferreira 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).

  • Roller device for displacement of railroad switching rails
    Patent number: 6189840
    Abstract: A ‘ROLLER DEVICE FOR DISPLACEMENT OF RAILROAD SWITCHING RAILS’ comprising a basic structure (10), provided in its end with a stylized horizontally-S-shaped laminar locking rib (1), the structure (10) being centrally provided with a pair of trapezium-shaped longitudinal plates (2) parallel to each other. The ends of the shafts (4) of corresponding rollers (5) being attached to cuts (3) of the plates (2). On the opposite end of the basic structure (10), it is defined a L-shaped laminar rib (8), which is mounted on a transversal support (11) defined by a U-shaped folded plate with horizontal extends (11a).
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: February 20, 2001
    Assignee: Companhia Vale do Rio Doce
    Inventors: Gilson Etore Mantovan, Isnad Torres Pires, José Roberto Fehlberg, Reynaldo Lopes Ferreira