Patents by Inventor Eliel Dos Santos Paes

Eliel Dos Santos Paes 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).

  • Sliding element for an internal combustion engine
    Patent number: 11466777
    Abstract: A sliding element for an internal combustion engine may include a base material having an annular external surface. The external surface may include a bonding layer, a first layer of coating, and a second layer of coating sequentially disposed thereon. The first layer of coating and the second layer of coating may include hard amorphous carbon (DLC) of a combined matrix having a plurality of sp3/sp2 bonds. The first layer of coating may include 45% sp3 bonds or less and may have a thickness of at least 10 micrometers. The second layer of coating may include at least 55% sp3 bonds and may have a thickness of at least 3 micrometers.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: October 11, 2022
    Inventor: Eliel Dos Santos Paes
  • SLIDING ELEMENT FOR INTERNAL COMBUSTION ENGINE
    Publication number: 20210277996
    Abstract: A sliding element for an internal combustion engine may include a base material having an annular external surface. The external surface may include a bonding layer, a first layer of coating, and a second layer of coating sequentially disposed thereon. The first layer of coating and the second layer of coating may include hard amorphous carbon (DLC) of a combined matrix having a plurality of sp3/sp2 bonds. The first layer of coating may include 45% sp3 bonds or less and may have a thickness of at least 10 micrometers. The second layer of coating may include at least 55% sp3 bonds and may have a thickness of at least 3 micrometers.
    Type: Application
    Filed: July 27, 2017
    Publication date: September 9, 2021
    Inventor: Eliel Dos Santos Paes
  • Sliding element
    Patent number: 10487730
    Abstract: A sliding element, for example a piston ring for an internal combustion engine, may include a sliding face, an adhesive layer disposed on the sliding face, and a coating disposed over the adhesive layer. The coating may be composed of an amorphous carbon material. The coating may have a ratio between sp3 bonds and sp2 bonds that indicates a predominance of sp2 bonds. The coating may have a roughness profile including a value of Rpk of ?0.15 ?m and a value of Rz of 0.7?Rz?1.5 ?m.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: November 26, 2019
    Assignees: Mahle Metal Leve S/A, Mahle International GmbH
    Inventors: Juliano Avelar Araujo, Eliel Dos Santos Paes
  • SLIDING ELEMENT
    Publication number: 20170175622
    Abstract: A sliding element, for example a piston ring for an internal combustion engine, may include a sliding face, an adhesive layer disposed on the sliding face, and a coating disposed over the adhesive layer. The coating may be composed of an amorphous carbon material. The coating may have a ratio between sp3 bonds and sp2 bonds that indicates a predominance of sp2 bonds. The coating may have a roughness profile including a value of Rpk of ?0.15 ?m and a value of Rz of 0.7?Rz?1.5 ?m.
    Type: Application
    Filed: December 20, 2016
    Publication date: June 22, 2017
    Inventors: Juliano Avelar Araujo, Eliel Dos Santos Paes