Patents by Inventor Promila Bhaatia

Promila Bhaatia 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: 10801123
    Abstract: A method of coating a metal article is disclosed that includes immersing a metal article having an exterior anodized layer in a bath containing a chemically active corrosion inhibitor, and applying a voltage to the article during the immersing, the voltage driving the chemically active corrosion inhibitor from the bath into the exterior anodized layer. An article is also disclosed that has a substrate comprising a metal, and a porous anodized layer formed on an exterior surface of the substrate that is infiltrated with a chemically active corrosion inhibitor, the anodized layer having an inward-facing region and an outward-facing region, the anodized layer having a greater concentration of chemically active corrosion inhibitors in the inward-facing region than in the outward-facing region.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: October 13, 2020
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Zhongfen Ding, Robert R. Hebert, Weilong Zhang, Bart Antonie van Hassel, Mark R. Jaworowski, Michael A. Kryzman, Blair A. Smith, Georgios S. Zafiris, Promila Bhaatia, Mark A. Brege, Shaahin Amini, Vijay V. Pujar
  • Patent number: 10675685
    Abstract: A method for preventing powder depletion/contamination during a consolidation process provides a can for holding a powdered material; the can having an interior wall; a protective layer is positioned intermediate the powdered material and the interior wall utilizing a sol-gel process utilizing monodisperse nanopowders; and the protective layer being formed from a material selected from the group consisting of nickel alloys, chrome alloys, and combinations thereof.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: June 9, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: Agnieszka M Wusatowska-Sarnek, Larry G Housefield, Ruston M Moore, Enrique E Montero, Promila Bhaatia
  • Publication number: 20200063284
    Abstract: A sealing process includes applying a first reactant to a substrate having a porous structure, the first reactant comprising a chromium (III) precursor and a transition metal precursor and applying a second reactant to the first reactant, the second reactant comprising a rare earth element precursor and an alkaline earth element precursor to form reservoirs of trivalent chromium in pore space of the porous structure, and a physical barrier over the substrate and the reservoirs.
    Type: Application
    Filed: October 29, 2019
    Publication date: February 27, 2020
    Inventors: Bart Antonie van Hassel, Georgios S. Zafiris, Zhongfen Ding, Michael A. Kryzman, Mark R. Jaworowski, Weina Li, Blair A. Smith, Weilong Zhang, Promila Bhaatia
  • Patent number: 10480093
    Abstract: A sealing process includes applying a first reactant to a substrate having a porous structure, the first reactant comprising a chromium (III) precursor and a transition metal precursor and applying a second reactant to the first reactant, the second reactant comprising a rare earth element precursor and an alkaline earth element precursor to form reservoirs of trivalent chromium in pore space of the porous structure, and a physical barrier over the substrate and the reservoirs.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: November 19, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Bart Antonie van Hassel, Georgios S. Zafiris, Zhongfen Ding, Michael A. Kryzman, Mark R. Jaworowski, Weina Li, Blair A. Smith, Weilong Zhang, Promila Bhaatia
  • Publication number: 20180327926
    Abstract: A sealing process includes applying a first reactant to a substrate having a porous structure, the first reactant comprising a chromium (III) precursor and a transition metal precursor and applying a second reactant to the first reactant, the second reactant comprising a rare earth element precursor and an alkaline earth element precursor to form reservoirs of trivalent chromium in pore space of the porous structure, and a physical barrier over the substrate and the reservoirs.
    Type: Application
    Filed: May 12, 2017
    Publication date: November 15, 2018
    Inventors: Bart Antonie van Hassel, Georgios S. Zafiris, Zhongfen Ding, Michael A. Kryzman, Mark R. Jaworowski, Weina Li, Blair A. Smith, Weilong Zhang, Promila Bhaatia
  • Publication number: 20180274121
    Abstract: A method of coating a metal article is disclosed that includes immersing a metal article having an exterior anodized layer in a bath containing a chemically active corrosion inhibitor, and applying a voltage to the article during the immersing, the voltage driving the chemically active corrosion inhibitor from the bath into the exterior anodized layer. An article is also disclosed that has a substrate comprising a metal, and a porous anodized layer formed on an exterior surface of the substrate that is infiltrated with a chemically active corrosion inhibitor, the anodized layer having an inward-facing region and an outward-facing region, the anodized layer having a greater concentration of chemically active corrosion inhibitors in the inward-facing region than in the outward-facing region.
    Type: Application
    Filed: March 27, 2017
    Publication date: September 27, 2018
    Inventors: Zhongfen Ding, Robert R. Hebert, Weilong Zhang, Bart Antonie van Hassel, Mark R. Jaworowski, Michael A. Kryzman, Blair A. Smith, Georgios S. Zafiris, Promila Bhaatia, Mark A. Brege, Shaahin Amini, Vijay V. Pujar
  • Publication number: 20160332230
    Abstract: A system for preventing powder depletion/contamination during a consolidation process has a can for holding a powdered material; the can having an interior wall; a protective layer positioned intermediate the powdered material and the interior wall; and the protective layer being formed from a material selected from the group consisting of nickel alloys, chrome alloys, and combinations thereof.
    Type: Application
    Filed: January 14, 2015
    Publication date: November 17, 2016
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Agnieszka M Wusatowska-Sarnek, Larry G Housefield, Ruston M Moore, Enrique E Montero, Promila Bhaatia
  • Publication number: 20070228332
    Abstract: A waterborne corrosion resistant primer composition is composed of a waterborne resin system; an optional curing agent; and a non-chromate containing corrosion inhibiting additive. The non-chromate corrosion inhibiting additive includes at least one of an anodic corrosion inhibitor, a cathodic corrosion inhibitor and a metal complexing agent. The metal complexing agent increases the solubility of at least one of the anodic and cathodic corrosion inhibitors.
    Type: Application
    Filed: April 4, 2006
    Publication date: October 4, 2007
    Inventors: Mark Jaworowski, Promila Bhaatia
  • Publication number: 20060247335
    Abstract: A corrosion resistant epoxy primer comprises a epoxy resin, a curing agent, and a non-chromate containing corrosion-inhibiting pigment.
    Type: Application
    Filed: April 27, 2005
    Publication date: November 2, 2006
    Inventor: Promila Bhaatia