Patents by Inventor Nicholas Doan

Nicholas Doan 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).

  • Swirled flow chemical vapor deposition
    Patent number: 11008652
    Abstract: A system may include a reactor vessel comprising an outer wall, a heat source thermally coupled to the reactor vessel, at least one reactor inlet in the outer wall, and at least one reactor outlet. The reactor vessel may be configured to house a porous preform in a radially central core region. The at least one reactor inlet may be configured to introduce a precursor gas to the reactor vessel to produce swirling flow of the precursor gas around the radially central core region of the reactor vessel. The at least one reactor outlet may be configured to remove exhaust gas from the reactor vessel and assist in maintaining a dynamic pressure of the reactor vessel greater than a pressure in the porous preform.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: May 18, 2021
    Assignees: Rolls-Royce Corporation, Rolls-Royce High Temperature Composites, Inc.
    Inventors: Chong M. Cha, David Liliedahl, Richard W. Kidd, Ross Galligher, Nicholas Doan
  • SWIRLED FLOW CHEMICAL VAPOR DEPOSITION
    Publication number: 20190169740
    Abstract: A system may include a reactor vessel comprising an outer wall, a heat source thermally coupled to the reactor vessel, at least one reactor inlet in the outer wall, and at least one reactor outlet. The reactor vessel may be configured to house a porous preform in a radially central core region. The at least one reactor inlet may be configured to introduce a precursor gas to the reactor vessel to produce swirling flow of the precursor gas around the radially central core region of the reactor vessel. The at least one reactor outlet may be configured to remove exhaust gas from the reactor vessel and assist in maintaining a dynamic pressure of the reactor vessel greater than a pressure in the porous preform.
    Type: Application
    Filed: February 6, 2019
    Publication date: June 6, 2019
    Inventors: Chong M. Cha, David Liliedahl, Richard W. Kidd, Ross Galligher, Nicholas Doan
  • Swirled flow chemical vapor deposition
    Patent number: 10227696
    Abstract: A method includes heating, using a heat source, a reactor vessel including a substrate in a radially central core region of the reactor vessel and introducing, using at least one reactor inlet in an outer wall of the reactor vessel, a precursor gas to the reactor vessel. The at least one reactor inlet is configured to swirling flow of the precursor gas around the radially central core region of the reactor vessel. The material deposits on the substrate from the precursor gas. The method includes removing, using at least one reactor outlet, an exhaust gas from the reactor vessel.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: March 12, 2019
    Assignees: Rolls-Royce Corporation, Rolls-Royce High Temperature Composites, Inc.
    Inventors: Chong M. Cha, David Liliedahl, Richard Kidd, Ross Galligher, Nicholas Doan
  • SWIRLED FLOW CHEMICAL VAPOR DEPOSITION
    Publication number: 20180057931
    Abstract: A system may include a reactor vessel comprising an outer wall, a heat source thermally coupled to the reactor vessel, at least one reactor inlet in the outer wall, and at least one reactor outlet. The reactor vessel may be configured to house a substrate in a radially central core region. The at least one reactor inlet may be configured to introduce a precursor gas to the reactor vessel to produce swirling flow of the precursor gas around the radially central core region of the reactor vessel. The at least one reactor outlet may be configured to remove exhaust gas from the reactor vessel.
    Type: Application
    Filed: August 15, 2017
    Publication date: March 1, 2018
    Inventors: Chong M. Cha, David Liliedahl, Richard Kidd, Ross Galligher, Nicholas Doan