Patents by Inventor Mary Trinh

Mary Trinh 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).

  • Method of making laminate thin-wall ceramic tubes and said tubes with electrodes, particularly for solid oxide fuel cells
    Patent number: 6974516
    Abstract: A method of fabricating a ceramic tube with electrodes thereon suitable for use as a tubular reaction chamber for a fuel cell. In one embodiment, the method includes wrapping a first electrode material around a mandrel, then wrapping a green ceramic material over the first electrode material, and then wrapping a second electrode material over the green ceramic material. The wrapped layers are laminated together, and then removed from the mandrel and sintered, in either sequence, to produce the laminated ceramic tube having an inner first electrode and an outer second electrode. Alternatively, a first electrode tube is provided in place of the mandrel and around which the green ceramic material is wrapped. The outer second electrode may be produced by wrapping a second electrode material around the green ceramic material, before or after laminating, or by printing the electrode material onto the sintered ceramic tube.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: December 13, 2005
    Assignee: Presidio Components, Inc.
    Inventors: Alan Devoe, Mary Trinh
  • Method of making laminate thin-wall ceramic tubes and said tubes with electrodes, particularly for solid oxide fuel cells
    Publication number: 20050000621
    Abstract: A method of fabricating a ceramic tube with electrodes thereon suitable for use as a tubular reaction chamber for a fuel cell. In one embodiment, the method includes wrapping a first electrode material around a mandrel, then wrapping a green ceramic material over the first electrode material, and then wrapping a second electrode material over the green ceramic material. The wrapped layers are laminated together, and then removed from the mandrel and sintered, in either sequence, to produce the laminated ceramic tube having an inner first electrode and an outer second electrode. Alternatively, a first electrode tube is provided in place of the mandrel and around which the green ceramic material is wrapped. The outer second electrode may be produced by wrapping a second electrode material around the green ceramic material, before or after laminating, or by printing the electrode material onto the sintered ceramic tube.
    Type: Application
    Filed: February 23, 2004
    Publication date: January 6, 2005
    Inventors: Alan Devoe, Mary Trinh
  • Laminate thin-wall ceramic tubes, including with integral stress wrappings, thickened ends and/or internal baffles, particularly for solid oxide fuel cells
    Patent number: 6695940
    Abstract: Very thin cast ceramic tape, preferably approximately 12 &mgr;m in thickness, is wrapped, preferably in a reversing spiral or helix, around a mandrel, preferably a mandrel made of steel and coated with a wax releasing agent, for so many times, preferably five or greater, as achieves a desired thickness of a tube wall, preferably about 100 &mgr;m. The green ceramic tube is then laminated in a pressure laminator, preferably a hydrostatic laminator at 3000 to 5000 psi, linking polymer chains between each ceramic layer, cross-linking polymer chains within each ceramic layer, and densifying the produced ceramic laminate tube by reducing porosity.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: February 24, 2004
    Inventors: Alan D. Devoe, Mary Trinh
  • Laminate thin-wall ceramic tubes, including with integral stress wrappings, thickened ends and/or internal baffles, particularly for solid oxide fuel cells
    Publication number: 20020146523
    Abstract: Very thin cast ceramic tape, preferably approximately 12 &mgr;m in thickness, is wrapped, preferably in a reversing spiral or helix, around a mandrel, preferably a mandrel made of steel and coated with a wax releasing agent, for so many times, preferably five or greater, as achieves a desired thickness of a tube wall, preferably about 100 &mgr;m. The green ceramic tube is then laminated in a pressure laminator, preferably a hydrostatic laminator at 3000 to 5000 psi, linking polymer chains between each ceramic layer, cross-linking polymer chains within each ceramic layer, and densifying the produced ceramic laminate tube by reducing porosity.
    Type: Application
    Filed: April 5, 2001
    Publication date: October 10, 2002
    Inventors: Alan D. Devoe, Mary Trinh