Patents by Inventor Royce Beal

Royce Beal 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).

  • Precursor formulations of a solid propellant, solid propellants including a reaction product of the precursor formulation, rocket motors including the solid propellant, and related methods
    Patent number: 11192831
    Abstract: A precursor formulation comprising, before curing, a hydroxyl-terminated polybutadiene (HTPB) prepolymer or a hydroxyl-terminated polyether (HTPE) prepolymer, an oxidizer, a dimer fatty diol, and an isocyanate curative. A solid propellant comprising a reaction product of the HTPB prepolymer or HTPE prepolymer, the dimer fatty diol, and the isocyanate curative is also disclosed, as is a rocket motor comprising a case and a solid propellant in the case, the solid propellant comprising the reaction product and an oxidizer. A method of reducing a burn rate of a solid propellant is also disclosed.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: December 7, 2021
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Robert S. Larson, Royce Beal
  • PRECURSOR FORMULATIONS OF A SOLID PROPELLANT, SOLID PROPELLANTS INCLUDING A REACTION PRODUCT OF THE PRECURSOR FORMULATION, ROCKET MOTORS INCLUDING THE SOLID PROPELLANT, AND RELATED METHODS
    Publication number: 20190016645
    Abstract: A precursor formulation comprising, before curing, a hydroxyl-terminated polybutadiene (HTPB) prepolymer or a hydroxyl-terminated polyether (HTPE) prepolymer, an oxidizer, a dimer fatty diol, and an isocyanate curative. A solid propellant comprising a reaction product of the HTPB prepolymer or HTPE prepolymer, the dimer fatty diol, and the isocyanate curative is also disclosed, as is a rocket motor comprising a case and a solid propellant in the case, the solid propellant comprising the reaction product and an oxidizer. A method of reducing a burn rate of a solid propellant is also disclosed.
    Type: Application
    Filed: July 13, 2017
    Publication date: January 17, 2019
    Inventors: Robert S. Larson, Royce Beal