Patents by Inventor Raymond A. Wildman

Raymond A. Wildman 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).

  • Propellant grain for optimizing the interior ballistic performance of a weapon
    Patent number: 10906848
    Abstract: A method of manufacturing and optimizing energetic propellant grains includes generating an optimal surface area to mass fraction burned ratio profile for a predetermined solid structure including propellant grains; using the profile as a target function of a topological optimization process to generate a 3D form of a propellant grain; developing a negative of the 3D form of the propellant grain; mixing and densifying the negative with an energetic material in an uncured form in a mixer to create a structure including the energetic material and embedded negative; and solvating the negative from the structure, wherein the negative comprises a 3D propellant grain. The developing of the negative of the 3D form of the propellant grain may occur using a predetermined material in an additive manufacturing process. The negative may be soluble in the predetermined material, and the energetic material may be insoluble in the predetermined material.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: February 2, 2021
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Paul J. Conroy, Raymond A. Wildman, Eric J. Robinette, John R. Schmidt, Andrew T. Gaynor
  • Propellant Grain for Optimizing the Interior Ballistic Performance of a Weapon
    Publication number: 20180273438
    Abstract: A method of manufacturing and optimizing energetic propellant grains includes generating an optimal surface area to mass fraction burned ratio profile for a predetermined solid structure including propellant grains; using the profile as a target function of a topological optimization process to generate a 3D form of a propellant grain; developing a negative of the 3D form of the propellant grain; mixing and densifying the negative with an energetic material in an uncured form in a mixer to create a structure including the energetic material and embedded negative; and solvating the negative from the structure, wherein the negative comprises a 3D propellant grain. The developing of the negative of the 3D form of the propellant grain may occur using a predetermined material in an additive manufacturing process. The negative may be soluble in the predetermined material, and the energetic material may be insoluble in the predetermined material.
    Type: Application
    Filed: March 23, 2017
    Publication date: September 27, 2018
    Inventors: Paul J. Conroy, Raymond A. Wildman, Eric J. Robinette, John R. Schmidt, Andrew T. Gaynor