Patents by Inventor Christopher Mara

Christopher Mara 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 Producing Machined CMC Surfaces without Exposing Fiber
    Publication number: 20240025812
    Abstract: A method to produce a ceramic matrix composite part, wherein the method comprises providing a ceramic fiber preform. Wherein the ceramic fiber preform includes a three-dimensional framework of a plurality of ceramic fibers. The method comprising, prior to melt infiltration, adding a layer of machinable stock to a target area of the ceramic fiber preform, melt infiltrating the ceramic fiber preform, forming the ceramic matrix composite part by cooling the melt infiltrated ceramic fiber preform, and machining the part in the target area where the machinable stock is located.
    Type: Application
    Filed: July 22, 2022
    Publication date: January 25, 2024
    Applicant: Rolls-Royce High Temperature Composites Inc.
    Inventors: Jeffrey Crutchfield, Pathikumar Sellappan, Chris Downie, Christopher Mara, Sungbo Shim
  • Method of producing machined CMC surfaces without exposing fiber
    Patent number: 11858862
    Abstract: A method to produce a ceramic matrix composite part, wherein the method comprises providing a ceramic fiber preform. Wherein the ceramic fiber preform includes a three-dimensional framework of a plurality of ceramic fibers. The method comprising, prior to melt infiltration, adding a layer of machinable stock to a target area of the ceramic fiber preform, melt infiltrating the ceramic fiber preform, forming the ceramic matrix composite part by cooling the melt infiltrated ceramic fiber preform, and machining the part in the target area where the machinable stock is located.
    Type: Grant
    Filed: July 22, 2022
    Date of Patent: January 2, 2024
    Assignee: ROLLS-ROYCE HIGH TEMPERATURE COMPOSITES INC.
    Inventors: Jeffrey Crutchfield, Pathikumar Sellappan, Chris Downie, Christopher Mara, Sungbo Shim