Patents by Inventor David L. Hunn

David L. Hunn 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: 9797691
    Abstract: An armor component having a plurality of ceramic elements, where each ceramic element is covered by a metal coating. Each metal coating covers the outer surface of only one ceramic element. The metal coating is configured to increase a dwell time for the armor component when the armor component is impacted by a projectile.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: October 24, 2017
    Assignee: Lockheed Martin Corporation
    Inventors: David L. Hunn, Sang J. Lee
  • Patent number: 9778006
    Abstract: An explosive device contains a water-reactive material that ignites upon exposure to water. The water-reactive material ignites a water-activated fuse that has a predetermined burn rate and length. The predetermined burn rate and length allows the device to sink to a desired depth before exploding. Hence, the device explodes after a desired period of time and/or at a desired depth. Defense against underwater swimmers is an advantageous feature of embodiments of the disclosure. The device can use a forty millimeter (40 mm) form factor, which permits launch of the device from convention grenade launchers.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: October 3, 2017
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventors: Toby D. Thomas, Jonathan H. Record, Kenneth W. Havens, David L. Hunn
  • Patent number: 9366515
    Abstract: An explosive device contains a water-reactive material that ignites upon exposure to water. The water-reactive material ignites a water-activated fuse that has a predetermined burn rate and length. The predetermined burn rate and length allows the device to sink to a desired depth before exploding. Hence, the device explodes after a desired period of time and/or at a desired depth. Defense against underwater swimmers is an advantageous feature of embodiments of the disclosure. The device can use a forty millimeter (40 mm) form factor, which permits launch of the device from convention grenade launchers.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: June 14, 2016
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventors: Toby D. Thomas, Jonathan H. Record, Kenneth W. Havens, David L. Hunn
  • Patent number: 9188410
    Abstract: An armor includes a core that, in turn, includes a first layer of prismatic elements arranged in a tessellated fashion and a second layer of prismatic elements arranged in a tessellated fashion. The armor further includes a smart component operably associated with a component of the armor. The first layer of prismatic elements is nested into the second layer of prismatic elements.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: November 17, 2015
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventors: David L. Hunn, Kenneth W. Havens, Sang J. Lee
  • Patent number: 9182200
    Abstract: An armor includes a core that, in turn, includes a first layer of prismatic elements arranged in a tessellated fashion and a second layer of prismatic elements arranged in a tessellated fashion. The first layer of prismatic elements is nested into the second layer of prismatic elements. An armor includes a strike face sheet, a rear face sheet, and a core disposed between the strike face sheet and the rear face sheet. The core includes a first layer of prismatic elements arranged in a tessellated fashion, a second layer of prismatic elements arranged in a tessellated fashion, and a strain isolation layer. The first layer of prismatic elements is nested into the second layer of prismatic elements with the strain isolation layer disposed between the first layer of prismatic elements and the second layer of prismatic elements.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: November 10, 2015
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventors: David L. Hunn, Kenneth W. Havens, Sang J. Lee
  • Publication number: 20150300783
    Abstract: An armor includes a core that, in turn, includes a first layer of prismatic elements arranged in a tessellated fashion and a second layer of prismatic elements arranged in a tessellated fashion. The armor further includes a smart component operably associated with a component of the armor. The first layer of prismatic elements is nested into the second layer of prismatic elements.
    Type: Application
    Filed: August 27, 2014
    Publication date: October 22, 2015
    Inventors: David L. Hunn, Kenneth W. Havens, Sang J. Lee
  • Publication number: 20150285597
    Abstract: An armor includes a core that, in turn, includes a first layer of prismatic dements arranged in a tessellated fashion and a second layer of prismatic elements arranged in a tessellated fashion. The first layer of prismatic elements is nested into the second layer of prismatic elements. An armor includes a strike face sheet, a rear face sheet, and a core disposed between the strike face sheet and the rear face sheet. The core includes a first layer of prismatic elements arranged in a tessellated fashion, a second layer of prismatic elements arranged in a tessellated fashion, and a strain isolation layer. The first layer of prismatic elements is nested into the second layer of prismatic elements with the strain isolation layer disposed between the first layer of prismatic elements and the second layer of prismatic elements.
    Type: Application
    Filed: August 21, 2014
    Publication date: October 8, 2015
    Inventors: David L. Hunn, Kenneth W. Havens, Sang J. Lee
  • Patent number: 9140528
    Abstract: A covert taggant dispersing grenade includes: a shell, the covert taggant disposed in the shell; a dispersal apparatus operably associated with the covert taggant to disperse the covert taggant; and a propulsion section operably associated with the shell for propelling the shell through an atmosphere. A method for dispersing a taggant includes: launching a grenade containing a taggant over a target, the taggant being invisible in the spectrum of the human eye; and covertly dispensing the taggant over the target.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: September 22, 2015
    Assignee: Lockheed Martin Corporation
    Inventors: Toby D. Thomas, Richard L. Green, Jonathan H. Record, David L. Hunn
  • Patent number: 9103637
    Abstract: A covert taggant dispersing grenade includes: a shell, the covert taggant disposed in the shell; a dispersal apparatus operably associated with the covert taggant to disperse the covert taggant; and a propulsion section operably associated with the shell for propelling the shell through an atmosphere. A method for dispersing a taggant includes: launching a grenade containing a taggant over a target, the taggant being invisible in the spectrum of the human eye; and covertly dispensing the taggant over the target.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: August 11, 2015
    Assignee: Lockheed Martin Corporation
    Inventors: Toby D. Thomas, Richard L. Green, Jonathan H. Record, David L. Hunn
  • Patent number: 9068807
    Abstract: A rocket-propelled grenade includes a payload section, a selectable fuzing section joined to the payload section, and a propulsion section joined to the selectable fuzing section. A rocket-propelled grenade includes a propulsion section and a payload section operably associated with the propulsion section. The payload section includes a shell, one or more penetrators disposed in the shell, and a charge for compromising the shell to deploy the one or more penetrators when the charge is initiated.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: June 30, 2015
    Assignee: Lockheed Martin Corporation
    Inventors: Toby D. Thomas, Richard L. Green, Jonathan H. Record, Robbie S. Strauch, David L. Hunn
  • Patent number: 9032879
    Abstract: A rocket-propelled grenade includes a payload section, a selectable fuzing section joined to the payload section, and a propulsion section joined to the selectable fuzing section. A rocket-propelled grenade includes a propulsion section and a payload section operably associated with the propulsion section. The payload section includes a shell, one or more penetrators disposed in the shell, and a charge for compromising the shell to deploy the one or more penetrators when the charge is initiated.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: May 19, 2015
    Assignee: Lockheed Martin Corporation
    Inventors: Toby D. Thomas, Richard L. Green, Jonathan H. Record, Robbie S. Strauch, David L. Hunn
  • Patent number: 8985001
    Abstract: An armor includes a core that, in turn, includes a first layer of prismatic elements arranged in a tessellated fashion and a second layer of prismatic elements arranged in a tessellated fashion. The first layer of prismatic elements is nested into the second layer of prismatic elements. An armor includes a strike face sheet, a rear face sheet, and a core disposed between the strike face sheet and the rear face sheet. The core includes a first layer of prismatic elements arranged in a tessellated fashion, a second layer of prismatic elements arranged in a tessellated fashion, and a strain isolation layer. The first layer of prismatic elements is nested into the second layer of prismatic elements with the strain isolation layer disposed between the first layer of prismatic elements and the second layer of prismatic elements.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: March 24, 2015
    Assignee: Lockheed Martin Corporation
    Inventors: David L. Hunn, Kenneth W. Havens, Sang J. Lee
  • Patent number: 8904916
    Abstract: A blast resistant vehicle hull includes an enclosure and a blast channel extending between and through a lower, outer surface of the enclosure and a surface of the enclosure other than the lower, outer surface of the enclosure. A vehicle includes a blast resistant vehicle hull. The blast resistant vehicle hull includes an enclosure and a blast channel extending between and through a lower, outer surface of the enclosure and a surface of the enclosure other than the lower, outer surface of the enclosure.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: December 9, 2014
    Assignee: Lockheed Martin Corporation
    Inventors: David L. Hunn, James C. Copp, Sang J. Lee
  • Patent number: 8850946
    Abstract: An armor includes a core that, in turn, includes a first layer of prismatic elements arranged in a tessellated fashion and a second layer of prismatic elements arranged in a tessellated fashion. The armor further includes a smart component operably associated with a component of the armor. The first layer of prismatic elements is nested into the second layer of prismatic elements.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: October 7, 2014
    Assignee: Lockheed Martin Corporation
    Inventors: David L. Hunn, Kenneth W. Havens, Sang J. Lee
  • Patent number: 8701540
    Abstract: An armor includes a metallic matrix; a plurality of ceramic rods disposed in the metallic matrix, the plurality of ceramic rods and the metallic matrix forming a core; and a spall liner disposed adjacent a rear face of the core. The metallic matrix places a compressive stress on the plurality of ceramic rods. A method for making an armor includes the steps of providing a plurality of ceramic rods in a desired configuration and embedding the plurality of ceramic rods in a metallic matrix to form a core, such that the metallic matrix provides a compressive stress to the plurality of ceramic rods. The method further includes providing a spall liner and disposing the spall liner adjacent a rear surface of the core to form an armor.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: April 22, 2014
    Assignee: Lockheed Martin Corporation
    Inventor: David L. Hunn
  • Patent number: 8448559
    Abstract: A vehicle hull includes a personnel compartment and an apparatus for inhibiting effects of an explosive blast operably associated with the personnel compartment. The apparatus is configured to redirect at least a portion of a blast wave resulting from an explosive blast. The apparatus defines a cavity in which a blast attenuator is disposed. The blast attenuator comprises a core defining a plurality of interconnecting pores defining a pore volume of the core, a shear thickening fluid disposed in the pore volume of the core, and an enclosure in which the core and the shear thickening fluid are disposed.
    Type: Grant
    Filed: December 12, 2009
    Date of Patent: May 28, 2013
    Assignee: Lockheed Martin Corporation
    Inventors: David L. Hunn, Sang J. Lee, James C. Copp
  • Publication number: 20120297966
    Abstract: A blast resistant vehicle hull includes an enclosure and a blast channel extending between and through a lower, outer surface of the enclosure and a surface of the enclosure other than the lower, outer surface of the enclosure. A vehicle includes a blast resistant vehicle hull. The blast resistant vehicle hull includes an enclosure and a blast channel extending between and through a lower, outer surface of the enclosure and a surface of the enclosure other than the lower, outer surface of the enclosure.
    Type: Application
    Filed: January 28, 2010
    Publication date: November 29, 2012
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: David L. Hunn, James C. Copp, Sang J. Lee
  • Patent number: 8276497
    Abstract: A blast attenuator includes an enclosure defining a cavity; a core defining a plurality of interconnected pores, the core disposed in the cavity; and a shear thickening fluid disposed in the cavity, such that the shear thickening fills a portion of a pore volume of the core. A blast attenuation assembly includes a blast attenuator including a shear thickening fluid and a crushable element that omits a shear thickening fluid operably associated with the blast attenuator. A method includes the steps of providing a rigid core defining a plurality of interconnected pores and placing an enclosure about the core, the enclosure defining a filling port. The method further includes the steps of filling at least a portion of a pore volume of the core with a shear thickening fluid and closing the filling port to seal the enclosure and form a first blast attenuator.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: October 2, 2012
    Assignee: Lockheed Martin Corporation
    Inventor: David L. Hunn
  • Publication number: 20120234163
    Abstract: An armor includes a metallic matrix; a plurality of ceramic rods disposed in the metallic matrix, the plurality of ceramic rods and the metallic matrix forming a core; and a spall liner disposed adjacent a rear face of the core. The metallic matrix places a compressive stress on the plurality of ceramic rods. A method for making an armor includes the steps of providing a plurality of ceramic rods in a desired configuration and embedding the plurality of ceramic rods in a metallic matrix to form a core, such that the metallic matrix provides a compressive stress to the plurality of ceramic rods. The method further includes providing a spall liner and disposing the spall liner adjacent a rear surface of the core to form an armor.
    Type: Application
    Filed: April 17, 2008
    Publication date: September 20, 2012
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventor: David L. Hunn
  • Publication number: 20120180632
    Abstract: A vehicle hull includes a personnel compartment and an apparatus for inhibiting effects of an explosive blast operably associated with the personnel compartment. The apparatus is configured to redirect at least a portion of a blast wave resulting from an explosive blast. The apparatus defines a cavity in which a blast attenuator is disposed. The blast attenuator comprises a core defining a plurality of interconnecting pores defining a pore volume of the core, a shear thickening fluid disposed in the pore volume of the core, and an enclosure in which the core and the shear thickening fluid are disposed.
    Type: Application
    Filed: December 12, 2009
    Publication date: July 19, 2012
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: David L. Hunn, Sang J. Lee, James C. Copp