Patents by Inventor Cedric Dobua

Cedric Dobua 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).

  • Publication number: 20240173782
    Abstract: A method for machining an annular groove, which is circumferential in a circumferential direction, on a cylindrical outer circumferential surface of a component is disclosed. The annular groove may have two lateral groove walls and a groove base transitioning into the two lateral groove walls in a respective transition region of two transition regions. The method may include contacting the groove base with a free end of a tool. The free end may include two lateral convex regions and a withdrawn region arranged therebetween. The method may further include reinforcing the annular groove such that the two transition regions of the annular groove are reinforced more strongly than a centre region of the groove base.
    Type: Application
    Filed: December 17, 2020
    Publication date: May 30, 2024
    Inventors: Cedric Dobua, Roland Lochmann
  • Patent number: 10316791
    Abstract: A piston for an internal combustion engine may include a shaft. A dual-layer coating with an inner layer and an outer layer may be applied to the shaft. The inner layer may include organic binders and solid lubricants. The inner layer may also include hard material particles of at least one of tungsten disulphide (WS2), tungsten carbide (WC), silicon carbide (SiC), and aluminum oxide (Al2O3). The outer layer may include inorganic binders, may be air-hardening, and may have a lower wear resistance than the inner layer.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: June 11, 2019
    Assignee: Mahle International GmbH
    Inventors: Cedric Dobua, Zeynep Kara
  • Publication number: 20170321626
    Abstract: A piston for an internal combustion engine may include a shaft. A dual-layer coating with an inner layer and an outer layer may be applied to the shaft. The inner layer may include organic binders and solid lubricants. The inner layer may also include hard material particles of at least one of tungsten disulphide (WS2), tungsten carbide (WC), silicon carbide (SiC), and aluminium oxide (Al2O3). The outer layer may include inorganic binders, may be air-hardening, and may have a lower wear resistance than the inner layer.
    Type: Application
    Filed: May 2, 2017
    Publication date: November 9, 2017
    Inventors: Cedric Dobua, Zeynep Kara
  • Publication number: 20140109861
    Abstract: A piston for an internal combustion engine may include a piston head and a piston skirt. The piston skirt may have piston bosses provided with boss bores. The piston bosses may be connected to each other at running surfaces. The running surfaces may be provided at least partially with a coating which is sprayed using a cold gas method. The material of the coating may be selected from the group comprising at least one of nickel, iron, copper, nickel-based alloys, iron-based alloys, copper-nickel-tin-based alloys and copper-tin-silver-based alloys.
    Type: Application
    Filed: October 19, 2012
    Publication date: April 24, 2014
    Applicant: Mahle International GmbH
    Inventors: Stephan Korner, Wolfgang Schlenther, Cedric Dobua