Patents by Inventor Rafael A. Bruno

Rafael A. Bruno 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).

  • Single-piece oil control ring
    Patent number: 9574663
    Abstract: A single-piece oil control ring for a piston may include a body having at least one upper portion and at least one lower portion each facing towards a cylinder wall of an internal combustion engine. At least one of the upper portion and the lower portion may respectively define a first surface extending substantially perpendicular to the body and a receding second surface extending from the first surface substantially at an incline. The first surface may protrude towards the cylinder wall in relation to the second surface. The first surface may have a first area of contact with the cylinder wall, and at least 95% of the first area may contact the cylinder wall.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: February 21, 2017
    Assignees: Mahle Metal Leve S/A, Mahle International GmbH
    Inventors: André Ferrarese, Rafael A. Bruno, Rudolf Huegel
  • SINGLE-PIECE OIL CONTROL RING
    Publication number: 20150292621
    Abstract: A single-piece oil control ring for a piston may include a body having at least one upper portion and at least one lower portion each facing towards a cylinder wall of an internal combustion engine. At least one of the upper portion and the lower portion may respectively define a first surface extending substantially perpendicular to the body and a receding second surface extending from the first surface substantially at an incline. The first surface may protrude towards the cylinder wall in relation to the second surface. The first surface may have a first area of contact with the cylinder wall, and at least 95% of the first area may contact the cylinder wall.
    Type: Application
    Filed: October 31, 2013
    Publication date: October 15, 2015
    Inventors: André Ferrarese, Rafael A. Bruno, Rudolf Huegel