Patents by Inventor Stefano Sergio Guerreiro

Stefano Sergio Guerreiro 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: 8992087
    Abstract: A crank drive includes a crankshaft journal having a concave-shaped surface, a bearing element in which the crankshaft journal is rotatably mounted, and a bearing shell disposed between the crankshaft journal and the bearing element and having a first convex-shaped surface matched with the concave-shaped surface of the crankshaft journal. The bearing shell has a second surface associated with the bearing element and is constructed such that the bearing shell has a non-constant cross section in the longitudinal direction of the crankshaft journal. The bearing element surface facing the bearing shell is adapted to the second surface of the bearing shell regarding the shape of the bearing element surface, and the second surface of the bearing shell is cylindrical or concave and has a smaller curvature than the concave-shaped surface of the crankshaft journal.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: March 31, 2015
    Assignee: Thyssenkrupp Metalurgica Campo Limpo Ltda.
    Inventors: Alex de Souza Rodrigues, Luis Antonio Fonseca Galli, Tavares Walter Oliveira, Stefano Sergio Guerreiro
  • Patent number: 8234785
    Abstract: The invention relates to a method for producing a bearing component (1), in particular a connecting rod (1), from a molded part (2), wherein the bearing component (1) includes at least one divided bearing seat (5) formed by a bearing base (3) and a bearing cover (4), and a bearing seat surface (7) coated with a bearing layer (6) of a bearing layer material is formed in the bearing seat (5) for supporting a shaft. In the method of the present invention the bearing cover (4) is separated from the molded part (2) along a separating surface (8). In accordance with the invention, a masking agent (M) is disposed perpendicularly with respect to a separating line (10) on the bearing seat surface (7) during a coating process for applying the bearing layer (6) in order to form a coating-free region, such that a recess (9) at a predetermined width (B) is produced in the bearing layer (6). The masking agent (M) is formed as an element which is separate from the bearing component (1) and is not connected thereto.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: August 7, 2012
    Assignee: ThyssenKrupp Technologies AG
    Inventor: Stefano Sergio Guerreiro
  • Publication number: 20100050432
    Abstract: The invention relates to a method for producing a bearing component (1), in particular a connecting rod (1), from a moulded part (2), wherein the bearing component (1) includes at least one divided bearing seat (5) formed by a bearing base (3) and a bearing cover (4), and a bearing seat surface (7) coated with a bearing layer (6) of a bearing layer material is formed in the bearing seat (5) for supporting a shaft. In the method of the present invention the bearing cover (4) is separated from the moulded part (2) along a separating surface (8). In accordance with the invention, a masking agent (M) is disposed perpendicularly with respect to a separating line (10) on the bearing seat surface (7) during a coating process for applying the bearing layer (6) in order to form a coating-free region, such that a recess (9) at a predetermined width (B) is produced in the bearing layer (6). The masking agent (M) is formed as an element which is separate from the bearing component (1) and is not connected thereto.
    Type: Application
    Filed: September 5, 2007
    Publication date: March 4, 2010
    Applicant: ThyssenKrupp Technologies AG
    Inventor: Stefano Sergio Guerreiro