Patents by Inventor Darrell Edwin Gaddy

Darrell Edwin Gaddy 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 mapping melt pattern during directed energy fabrication
    Patent number: 10688560
    Abstract: A method and system are provided for mapping a melt pattern of material created during directed energy fabrication. An infrared camera and a video camera are provided to record images of the pattern of melted material. Each frame of the infrared camera's images is processed to generate a first map of pixels identifying pixels indicative of a highest temperature greater than or equal to a liquidus temperature of the meltable material. Each frame of the video camera's images is processed to generate a second map of pixels identifying pixels indicative of a highest temperature greater than or equal to the liquidus temperature of the meltable material. The first map of pixels and said second map of pixels are overlaid on each other wherein a third map of pixels is generated and is indicative of a hybrid image of the pattern of melted material.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: June 23, 2020
    Assignee: United States of America as represented by the Administrator of NASA
    Inventors: Paul R. Gradl, Adam C. Kimberlin, Darrell Edwin Gaddy, Roger Derek Moody