Patents by Inventor Juliano A. Araujo

Juliano A. Araujo 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: 9759322
    Abstract: A sliding element for use in an internal combustion engine may include a ferrous base having a peripheral sliding surface covered by a protective surface layer, the protective surface layer including at least one nitride applied via at least one of physical vapour deposition and a nitrided layer. The peripheral sliding surface may have a diamond like carbon (DLC) coating disposed thereon. The coating may include at least one of (a) one or more transition layers composed of WC1-x and (b) an adhesive layer of metallic chromium with a crystal structure. The coating may include an intermediate layer of metal DLC, the metal may be tungsten in a multilayer structure of a-C:H:W and a-C:H, and an outer layer of metal-free DLC.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: September 12, 2017
    Assignees: MAHLE Metal Leve S.A., MAHLE International GmbH
    Inventors: Juliano A. Araujo, Nuno Costa
  • Patent number: 9181870
    Abstract: The present invention relates to an element (1) that works sliding, of an internal combustion engine and/or a compressor that undergoes friction and receives a coating of chrome nitride having an equiaxial morphology, with low porosity (lower than 1%) and with a crystallographic orientation predominantly (111), maintaining some reticulate in the orientation (200), so as to improve its resistance to wear and its toughness, prolonging the useful life of the element (1) that works sliding.
    Type: Grant
    Filed: May 28, 2012
    Date of Patent: November 10, 2015
    Assignees: MAHLE METAL LEVE S/A, MAHLE INTERNATIONAL GMBH
    Inventors: Paulo Jose Da Rocha Mordente, Robert R. Banfield, Juliano A. Araujo, Jose V. Sarabanda
  • Publication number: 20150018254
    Abstract: A sliding element for use in an internal combustion engine may include a ferrous base having a peripheral sliding surface covered by a protective surface layer, the protective surface layer including at least one nitride applied via at least one of physical vapour deposition and a nitrided layer. The peripheral sliding surface may have a diamond like carbon (DLC) coating disposed thereon. The coating may include at least one of (a) one or more transition layers composed of WC1-x and (b) an adhesive layer of metallic chromium with a crystal structure. The coating may include an intermediate layer of metal DLC, the metal may be tungsten in a multilayer structure of a-C:H:W and a-C:H, and an outer layer of metal-free DLC.
    Type: Application
    Filed: February 15, 2013
    Publication date: January 15, 2015
    Applicants: Mahle-MEtal Leve S/A, Mahle International GmbH
    Inventors: Juliano A. Araujo, Nuno Costa
  • Publication number: 20140245987
    Abstract: The present invention relates to an element (1) that works sliding, of an internal combustion engine and/or a compressor that undergoes friction and receives a coating of chrome nitride having an equiaxial morphology, with low porosity (lower than 1%) and with a crystallographic orientation predominantly (111), maintaining some reticulate in the orientation (200), so as to improve its resistance to wear and its toughness, prolonging the useful life of the element (1) that works sliding.
    Type: Application
    Filed: May 28, 2012
    Publication date: September 4, 2014
    Applicants: Mahle International GmbH, Mahle - Metal Leve S/A
    Inventors: Paulo Jose Da Rocha Mordente, Robert R. Banfield, Juliano A. Araujo, Jose V. Sarabanda
  • Patent number: 8215941
    Abstract: The present invention refers to an interchangeable system for support and actuation of rotary injection molds, used for the manufacture of plastic multi-component parts. This system is easily installed on conventional injection molding machines. The support system (13) is constituted by a main body that includes a sliding device and a rotary mechanism. The longitudinal sliding device is driven by cylinders (8 and 23) and is supported by the arms of the support (9, 15). A rotary unit, including motorization (20) is coupled to the sliding device with two rotary support platens, upper (7) and lower (17). The central mold (4) is supported between the rotary support platens (7 and 17). The frontal mold (12) is fixed on the interior part of the support which is in-turn fixed to the machine platen. The rear mold (2) is fixed to the moving platen of the injection machine (1) as usual. The invention permits not only a rapid mold mutation but also an easy reinstallation on different injection machines.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: July 10, 2012
    Assignee: PLASDAN—Automacao e Sistemas, Lda.
    Inventor: Paulo Juliano Araujo
  • Publication number: 20080193586
    Abstract: The present invention refers to an interchangeable system for support and actuation of rotary injection molds, used for the manufacture of plastic multi-component parts. This system is easily installed on conventional injection molding machines. The support system (13) is constituted by a main body that includes a sliding device and a rotary mechanism. The longitudinal sliding device is driven by cylinders (8 and 23) and is supported by the arms of the support (9, 15). A rotary unit, including motorization (20) is coupled to the sliding device with two rotary support platens, upper (7) and lower (17). The central mold (4) is supported between the rotary support platens (7 and 17). The frontal mold (12) is fixed on the interior part of the support which is in-turn fixed to the machine platen. The rear mold (2) is fixed to the moving platen of the injection machine (1) as usual. The invention permits not only a rapid mold mutation but also an easy reinstallation on different injection machines.
    Type: Application
    Filed: November 8, 2006
    Publication date: August 14, 2008
    Inventor: Paulo Juliano Araujo