Patents by Inventor Robert S. Larson

Robert S. Larson 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).

  • Patent number: 11920541
    Abstract: A precursor formulation of a liner comprising a polymer and at least two curatives is disclosed. One of the at least two curatives comprises a curative formulated to preferentially react with the polymer and the other of the at least two curatives comprises a blocked curative formulated to be substantially unreactive with the polymer. A method of lining a rocket motor is also disclosed, as is a rocket motor including the liner.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: March 5, 2024
    Assignee: Northrop Grumman Systems Corporation
    Inventor: Robert S. Larson
  • Patent number: 11753544
    Abstract: An insulation material includes a matrix comprising a reaction product formed from a silicon carbide precursor resin and a silicon dioxide precursor resin. At least one filler, such as hollow glass microspheres and/or carbon fiber is dispersed within the matrix. A rocket motor includes a case, the insulation material within and bonded to the case, and a solid propellant within the case. An insulation precursor includes a silicon carbide precursor resin, a silicon dioxide precursor resin, and the at least one filler. Related methods are also disclosed.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: September 12, 2023
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Benjamin W. C. Garcia, Robert S. Larson
  • Publication number: 20220065197
    Abstract: A precursor formulation of a liner comprising a polymer and at least two curatives is disclosed. One of the at least two curatives comprises a curative formulated to preferentially react with the polymer and the other of the at least two curatives comprises a blocked curative formulated to be substantially unreactive with the polymer. A method of lining a rocket motor is also disclosed, as is a rocket motor including the liner.
    Type: Application
    Filed: August 28, 2020
    Publication date: March 3, 2022
    Inventor: Robert S. Larson
  • 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
  • Patent number: 11073366
    Abstract: A flare comprising an illuminant adjacent to a casing of a flare and a liner between the casing and the illuminant. The liner comprises a reaction product of a prepolymer and a curative, and one or more of a zinc oxide material or an aluminum oxide material. Methods of forming a flare are also disclosed.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: July 27, 2021
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Robert S. Larson, Elizabeth K. Bonderson
  • Publication number: 20210190464
    Abstract: A flare comprising an illuminant adjacent to a casing of a flare and a liner between the casing and the illuminant. The liner comprises a reaction product of a prepolymer and a curative, and one or more of a zinc oxide material or an aluminum oxide material. Methods of forming a flare are also disclosed.
    Type: Application
    Filed: December 24, 2019
    Publication date: June 24, 2021
    Inventors: Robert S. Larson, Elizabeth K. Bonderson
  • Publication number: 20210061999
    Abstract: An insulation material includes a matrix comprising a reaction product formed from a silicon carbide precursor resin and a silicon dioxide precursor resin. At least one filler, such as hollow glass microspheres and/or carbon fiber is dispersed within the matrix. A rocket motor includes a case, the insulation material within and bonded to the case, and a solid propellant within the case. An insulation precursor includes a silicon carbide precursor resin, a silicon dioxide precursor resin, and the at least one filler. Related methods are also disclosed.
    Type: Application
    Filed: October 29, 2020
    Publication date: March 4, 2021
    Inventors: Benjamin W.C. Garcia, Robert S. Larson
  • Patent number: 10870757
    Abstract: An insulation material includes a matrix comprising a reaction product formed from a silicon carbide precursor resin and a silicon dioxide precursor resin. At least one filler, such as hollow glass microspheres and/or carbon fiber is dispersed within the matrix. A rocket motor includes a case, the insulation material within and bonded to the case, and a solid propellant within the case. An insulation precursor includes a silicon carbide precursor resin, a silicon dioxide precursor resin, and the at least one filler. Related methods are also disclosed.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: December 22, 2020
    Assignee: Northrop Grumman Innovation Systems, Inc.
    Inventors: Benjamin W. C. Garcia, Robert S. Larson
  • Publication number: 20200032061
    Abstract: An insulation material includes a matrix comprising a reaction product formed from a silicon carbide precursor resin and a silicon dioxide precursor resin. At least one filler, such as hollow glass microspheres and/or carbon fiber is dispersed within the matrix. A rocket motor includes a case, the insulation material within and bonded to the case, and a solid propellant within the case. An insulation precursor includes a silicon carbide precursor resin, a silicon dioxide precursor resin, and the at least one filler. Related methods are also disclosed.
    Type: Application
    Filed: July 25, 2018
    Publication date: January 30, 2020
    Inventors: Benjamin W.C. Garcia, Robert S. Larson
  • 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
  • Patent number: 9963619
    Abstract: An assembly comprising a first article, a second article adjacent the first article, and an electrically conductive adhesive in electrical communication with the first article and the second article. The electrically conductive adhesive comprises nickel nanostrands dispersed in a matrix comprising a reaction product of bisphenol-F epoxy resin, resorcinol diglycidyl ether epoxy monomer, and at least one amine-containing curing agent. The electrically conductive adhesive exhibits a tensile adhesion strength greater than about 5,000 psi and a volume resistivity less than about 0.01 ?·cm. Electrically conductive adhesives including nickel nanostrands, precursor packages of the electrically conductive adhesive, related methods of forming the electrically conductive adhesive and an assembly including the electrically conductive adhesive are also disclosed.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: May 8, 2018
    Assignee: Orbital ATK, Inc.
    Inventor: Robert S. Larson
  • Publication number: 20170145264
    Abstract: An assembly comprising a first article, a second article adjacent the first article, and an electrically conductive adhesive in electrical communication with the first article and the second article. The electrically conductive adhesive comprises nickel nanostrands dispersed in a matrix comprising a reaction product of bisphenol-F epoxy resin, resorcinol diglycidyl ether epoxy monomer, and at least one amine-containing curing agent. The electrically conductive adhesive exhibits a tensile adhesion strength greater than about 5,000 psi and a volume resistivity less than about 0.01 ?·cm. Electrically conductive adhesives including nickel nanostrands, precursor packages of the electrically conductive adhesive, related methods of forming the electrically conductive adhesive and an assembly including the electrically conductive adhesive are also disclosed.
    Type: Application
    Filed: November 24, 2015
    Publication date: May 25, 2017
    Inventor: Robert S. Larson
  • Patent number: 9416217
    Abstract: A precursor formulation of a liner comprising a polymer and at least two curatives. One of the at least two curatives comprises a more reactive curative and the other of the at least two curatives comprises a less reactive curative. The more reactive curative is formulated to crosslink the polymer. A method of lining a rocket motor is also disclosed, as is a rocket motor including the liner.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: August 16, 2016
    Assignee: Orbital ATK, Inc.
    Inventors: Robert S. Larson, Elizabeth K. Bonderson
  • Publication number: 20140260184
    Abstract: A precursor formulation of a liner comprising a polymer and at least two curatives. One of the at least two curatives comprises a more reactive curative and the other of the at least two curatives comprises a less reactive curative. The more reactive curative is formulated to crosslink the polymer. A method of lining a rocket motor is also disclosed, as is a rocket motor including the liner.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventors: Robert S. Larson, Elizabeth K. Bonderson
  • Patent number: 8598245
    Abstract: Methods of forming an insulating material comprising combining a polysilazane, a cross-linking compound, and a gas-generating compound to form a reaction mixture, and curing the reaction mixture to form a modified polysilazane. The gas-generating compound may be water, an alcohol, an amine, or combinations thereof. The cross-linking compound may be an isocyanate, an epoxy resin, or combinations thereof. The insulating material may include a matrix comprising one of a reaction product of a polysilazane and an isocyanate and a reaction product of a polysilazane and an epoxy resin. The matrix also comprises a plurality of interconnected pores produced from one of reaction of the polysilazane and the isocyanate and from reaction of the polysilazane and the epoxy resin. A precursor formulation that comprises a polysilazane, a cross-linking compound, and a gas-generating compound is also disclosed.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: December 3, 2013
    Assignee: Alliant Techsystems Inc.
    Inventors: Robert S. Larson, Michael E. Fuller
  • Publication number: 20120264838
    Abstract: Methods of forming an insulating material comprising combining a polysilazane, a cross-linking compound, and a gas-generating compound to form a reaction mixture, and curing the reaction mixture to form a modified polysilazane. The gas-generating compound may be water, an alcohol, an amine, or combinations thereof The cross-linking compound may be an isocyanate, an epoxy resin, or combinations thereof The insulating material may include a matrix comprising one of a reaction product of a polysilazane and an isocyanate and a reaction product of a polysilazane and an epoxy resin. The matrix also comprises a plurality of interconnected pores produced from one of reaction of the polysilazane and the isocyanate and from reaction of the polysilazane and the epoxy resin. A precursor formulation that comprises a polysilazane, a cross-linking compound, and a gas-generating compound is also disclosed.
    Type: Application
    Filed: April 14, 2011
    Publication date: October 18, 2012
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventors: Robert S. Larson, Michael E. Fuller
  • Patent number: 7072934
    Abstract: The present invention provides a system and method for integrating disparate business applications, and managing the applications processes in a hardware resource and user effort efficient manner. The automated system of the present invention uses a business systems platform comprised of several unique servers to efficiently manage multiple applications which are themselves generally distributed across a network, and to control the execution of the required tasks with minimum use of redundant data input to the several applications, thereby minimizing the use of hardware resources and user input effort. Business objects are controlled through a persistence framework which is Java, XML and EJB based.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: July 4, 2006
    Assignee: SABA Software, Inc.
    Inventors: Chris Helgeson, Daniel S. Lipkin, Robert S. Larson, Michael L. Dufner, Gaurav Mehra, Deepak Jain
  • Patent number: 6643652
    Abstract: The present mechanism provides a solution to the needs described above through a system and method for managing data exchange among systems in a network. The systems and methods of the present mechanism translate data from a system specific local format to a generic interchange format object, and vice versa, with predefined stylesheets using generic components and a system specific service components which utilize a native application programming interface of the specific local system.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: November 4, 2003
    Assignee: Saba Software, Inc.
    Inventors: Christopher S. Helgeson, Daniel S. Lipkin, Robert S. Larson, Srinivas Panuganti
  • Publication number: 20020073236
    Abstract: The present invention provides a solution to the needs described above through a system and method for managing data exchange among systems in a network. The systems and methods of the present invention translate data from a system specific local format to a generic interchange format object, and vice versa, with predefined stylesheets using generic components and a system specific service components which utilize a native application programming interface of the specific local system.
    Type: Application
    Filed: January 12, 2001
    Publication date: June 13, 2002
    Inventors: Christopher S. Helgeson, Daniel S. Lipkin, Robert S. Larson, Srinivas Panuganti
  • Publication number: 20020049788
    Abstract: The present invention provides a solution to the needs described above through a system and method for integrating the disparate platforms and software applications, and dynamic generation of web content in a user effort efficient manner. The system of the present invention uses an Web Content Server to interact with disparate systems and to improve the productivity of building web content. The Web Content Server provides a page engine or platform that separates data production, interaction elements, and display information and maintains these aspects of page production in different files.
    Type: Application
    Filed: January 12, 2001
    Publication date: April 25, 2002
    Inventors: Daniel S. Lipkin, Michael L. Dufner, Samdor Szego, Robert S. Larson, Michael Hussey, Dharma Widmann