Patents by Inventor Alexander E. Gash

Alexander E. Gash 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: 9062952
    Abstract: A product includes: a part including at least one component characterized as an energetic material, where the at least one component is at least partially characterized by physical characteristics of being deposited by an electrophoretic deposition process. A method includes: providing a plurality of particles of an energetic material suspended in a dispersion liquid to an EPD chamber or configuration; applying a voltage difference across a first pair of electrodes to generate a first electric field in the EPD chamber; and depositing at least some of the particles of the energetic material on at least one surface of a substrate, the substrate being one of the electrodes or being coupled to one of the electrodes.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: June 23, 2015
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Kyle T. Sullivan, Alexander E. Gash, Joshua D. Kuntz, Marcus A. Worsley
  • Publication number: 20150099102
    Abstract: In one embodiment, a material includes a plurality of particles, a solvent system and one or more stabilizing agents; the particles are configured to complete a self-propagating and/or self-sustaining reaction upon initiation thereof. In another embodiment, a method includes dispersing a plurality of particles in solution to form a dispersion and adding a stabilizing agent to the dispersion in an amount sufficient to cause the dispersion to exhibit one or more predetermined rheological properties; again, the particles in the dispersion are configured to complete a self-propagating and/or self-sustaining reaction upon initiation thereof. In still another embodiment, a method includes depositing a material on a substrate; the material includes a plurality of particles configured to complete a self-propagating and/or self-sustaining reaction upon initiation thereof, a solvent system and one or more stabilizing agents.
    Type: Application
    Filed: October 8, 2013
    Publication date: April 9, 2015
    Applicant: Lawrence Livermore National Security, LLC
    Inventors: Kyle Sullivan, John M. Densmore, Eric Duoss, Alexander E. Gash, Joshua Kuntz, John Vericella
  • Publication number: 20140217330
    Abstract: A metal oxide-carbon composite includes a carbon aerogel with an oxide overcoat. The metal oxide-carbon composite is made by providing a carbon aerogel, immersing the carbon aerogel in a metal oxide sol under a vacuum, raising the carbon aerogel with the metal oxide sol to atmospheric pressure, curing the carbon aerogel with the metal oxide sol at room temperature, and drying the carbon aerogel with the metal oxide sol to produce the metal oxide-carbon composite. The step of providing a carbon aerogel can provide an activated carbon aerogel or provide a carbon aerogel with carbon nanotubes that make the carbon aerogel mechanically robust.
    Type: Application
    Filed: January 15, 2014
    Publication date: August 7, 2014
    Inventors: Marcus A. WORSLEY, Thomas Yong-Jin HAN, Joshua D. KUNTZ, Octavio CERVANTES, Alexander E. GASH, Theodore F. BAUMANN, Joe H. SATCHER, Jr.
  • Patent number: 8664143
    Abstract: A metal oxide-carbon composite includes a carbon aerogel with an oxide overcoat. The metal oxide-carbon composite is made by providing a carbon aerogel, immersing the carbon aerogel in a metal oxide sol under a vacuum, raising the carbon aerogel with the metal oxide sol to atmospheric pressure, curing the carbon aerogel with the metal oxide sol at room temperature, and drying the carbon aerogel with the metal oxide sol to produce the metal oxide-carbon composite. The step of providing a carbon aerogel can provide an activated carbon aerogel or provide a carbon aerogel with carbon nanotubes that make the carbon aerogel mechanically robust.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: March 4, 2014
    Assignee: Lawrence Livermore National Security, LLC.
    Inventors: Marcus A. Worsley, Thomas Yong-Jin Han, Joshua D. Kuntz, Octavio Cervantes, Alexander E. Gash, Theodore F. Baumann, Joe H. Satcher, Jr.
  • Patent number: 8431197
    Abstract: An energetic composite having a plurality of reactive particles each having a reactive multilayer construction formed by successively depositing reactive layers on a rod-shaped substrate having a longitudinal axis, dividing the reactive-layer-deposited rod-shaped substrate into a plurality of substantially uniform longitudinal segments, and removing the rod-shaped substrate from the longitudinal segments, so that the reactive particles have a controlled, substantially uniform, cylindrically curved or otherwise rod-contoured geometry which facilitates handling and improves its packing fraction, while the reactant multilayer construction controls the stability, reactivity and energy density of the energetic composite.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: April 30, 2013
    Assignees: Lawrence Livermore National Security, LLC, John Hopkins University
    Inventors: Gregory M. Fritz, Robert Allen Knepper, Timothy P. Weihs, Alexander E. Gash, John S. Sze
  • Publication number: 20130078466
    Abstract: An energetic composite having a plurality of reactive particles each having a reactive multilayer construction formed by successively depositing reactive layers on a rod-shaped substrate having a longitudinal axis, dividing the reactive-layer-deposited rod-shaped substrate into a plurality of substantially uniform longitudinal segments, and removing the rod-shaped substrate from the longitudinal segments, so that the reactive particles have a controlled, substantially uniform, cylindrically curved or otherwise rod-contoured geometry which facilitates handling and improves its packing fraction, while the reactant multilayer construction controls the stability, reactivity and energy density of the energetic composite.
    Type: Application
    Filed: October 23, 2009
    Publication date: March 28, 2013
    Inventors: Gregory M. Fritz, Robert Allen Knepper, Timothy P. Weihs, Alexander E. Gash, John S. Sze
  • Publication number: 20130036930
    Abstract: A product includes: a part including at least one component characterized as an energetic material, where the at least one component is at least partially characterized by physical characteristics of being deposited by an electrophoretic deposition process. A method includes: providing a plurality of particles of an energetic material suspended in a dispersion liquid to an EPD chamber or configuration; applying a voltage difference across a first pair of electrodes to generate a first electric field in the EPD chamber; and depositing at least some of the particles of the energetic material on at least one surface of a substrate, the substrate being one of the electrodes or being coupled to one of the electrodes.
    Type: Application
    Filed: August 8, 2012
    Publication date: February 14, 2013
    Applicant: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
    Inventors: Kyle T. Sullivan, Alexander E. Gash, Joshua D. Kuntz, Marcus A. Worsley
  • Patent number: 8328967
    Abstract: Sol-gel chemistry is used to prepare igniters comprising energetic multilayer structures coated with energetic materials. These igniters can be tailored to be stable to environmental aging, i.e., where the igniters are exposed to extremes of both hot and cold temperatures (?30 C to 150 C) and both low (0%) and high relative humidity (100%).
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: December 11, 2012
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Troy W. Barbee, Jr., Randall L. Simpson, Alexander E. Gash, Joe H. Satcher, Jr.
  • Patent number: 8257520
    Abstract: An ordered energetic composite structure according to one embodiment includes an ordered array of metal fuel portions; and an oxidizer in gaps located between the metal fuel portions. An ordered energetic composite structure according to another embodiment includes at least one metal fuel portion having an ordered array of nanopores; and an oxidizer in the nanopores. A method for forming an ordered energetic composite structure according to one embodiment includes forming an ordered array of metal fuel portions; and depositing an oxidizer in gaps located between the metal fuel portions. A method for forming an ordered energetic composite structure according to another embodiment includes forming an ordered array of nanopores in at least one metal fuel portion; and depositing an oxidizer in the nanopores.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: September 4, 2012
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Alexander E. Gash, Thomas Yong-Jin Han, Donald J. Sirbuly
  • Patent number: 8187398
    Abstract: An energetic composition and system using amassed energetic multilayer pieces which are formed from the division, such as for example by cutting, scoring, breaking, crushing, shearing, etc., of a mechanically activatable monolithic energetic multilayer(s) (e.g. macro-scale sheets of multilayer films), for enhancing the sensitivity of the energetic composite and system to mechanical initiation of self-sustained reaction. In particular, mechanical initiation of the energetic composition may be achieved with significantly lower mechanical energy inputs than that typically required for initiating the monolithic energetic multilayers from which it is derived.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: May 29, 2012
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Alexander E. Gash, Troy W. Barbee, Jr.
  • Publication number: 20120122652
    Abstract: A metal oxide-carbon composite includes a carbon aerogel with an oxide overcoat. The metal oxide-carbon composite is made by providing a carbon aerogel, immersing the carbon aerogel in a metal oxide sol under a vacuum, raising the carbon aerogel with the metal oxide sol to atmospheric pressure, curing the carbon aerogel with the metal oxide sol at room temperature, and drying the carbon aerogel with the metal oxide sol to produce the metal oxide-carbon composite. The step of providing a carbon aerogel can provide an activated carbon aerogel or provide a carbon aerogel with carbon nanotubes that make the carbon aerogel mechanically robust.
    Type: Application
    Filed: October 25, 2011
    Publication date: May 17, 2012
    Inventors: Marcus A. WORSLEY, Thomas Yong-Jin Han, Joshua D. Kuntz, Octavio Cervantes, Alexander E. Gash, Theodore F. Baumann, Joe H. Satcher, JR.
  • Patent number: 8172964
    Abstract: A method for creating a pyrophoric material according to one embodiment includes thermally activating a carbon foam for creating micropores therein; contacting the activated carbon foam with a liquid solution comprising a metal salt for depositing metal ions in the carbon foam; and reducing the metal ions in the foam to metal particles. A pyrophoric material in yet another embodiment includes a pyrophoric metal-carbon foam composite comprising a carbon foam having micropores and mesopores and a surface area of greater than or equal to about 2000 m2/g, and metal particles in the pores of the carbon foam. Additional methods and materials are also disclosed.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: May 8, 2012
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Alexander E. Gash, Joe H. Satcher, Jr., Randall L. Simpson, Theodore F. Baumann, Marcus A. Worsley
  • Publication number: 20110203714
    Abstract: Sol-gel chemistry is used to prepare igniters comprising energetic multilayer structures coated with energetic materials. These igniters can be tailored to be stable to environmental aging, i.e., where the igniters are exposed to extremes of both hot and cold temperatures (?30 C to 150 C) and both low (0%) and high relative humidity (100%).
    Type: Application
    Filed: May 3, 2011
    Publication date: August 25, 2011
    Inventors: Troy W. Barbee, JR., Randall L. Simpson, Alexander E. Gash, Joe H. Satcher, JR.
  • Patent number: 7951247
    Abstract: Sol-gel chemistry is used to prepare igniters comprising energetic multilayer structures coated with energetic booster materials. These igniters can be tailored to be stable to environmental aging, i.e., where the igniters are exposed to extremes of both hot and cold temperatures (?30 C to 150 C) and both low (0%) and high relative humidity (100%).
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: May 31, 2011
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Troy W. Barbee, Jr., Randall L. Simpson, Alexander E. Gash, Joe H. Satcher, Jr.
  • Publication number: 20100267541
    Abstract: A method for producing ceramic materials utilizing the sol-gel process enables the preparation of intimate homogeneous dispersions of materials while offering the ability to control the size of one component within another. The method also enables the preparation of materials that densify at reduced temperatures. Applications of the compositions include filters, solid-oxide fuel cells, membranes, ceramic cutting tools and wear and auto parts. In one example, 10 g of AlCl6.6H2O is added to a 150 ml beaker and dissolved in 10 g EtOH and 1 g H2O. While stirring, 0.456 g of B4C powder is added. Then 9.6 g of propylene oxide is added. The gel sets up in about 10 minutes and is dried overnight. It is then washed with 1% NH4OH and air dried to yield 3.969 g of Al2O3/B4C xerogel.
    Type: Application
    Filed: June 28, 2006
    Publication date: October 21, 2010
    Inventors: Joe H. Satcher, JR., Alexander E. Gash, Randall L. Simpson, Richard L. Landingham, Robert A. Reibold
  • Publication number: 20100212787
    Abstract: An ordered energetic composite structure according to one embodiment includes an ordered array of metal fuel portions; and an oxidizer in gaps located between the metal fuel portions. An ordered energetic composite structure according to another embodiment includes at least one metal fuel portion having an ordered array of nanopores; and an oxidizer in the nanopores. A method for forming an ordered energetic composite structure according to one embodiment includes forming an ordered array of metal fuel portions; and depositing an oxidizer in gaps located between the metal fuel portions. A method for forming an ordered energetic composite structure according to another embodiment includes forming an ordered array of nanopores in at least one metal fuel portion; and depositing an oxidizer in the nanopores.
    Type: Application
    Filed: February 24, 2009
    Publication date: August 26, 2010
    Inventors: Alexander E. Gash, Thomas Yong-Jin Han, Donald J. Sirbuly
  • Publication number: 20100190639
    Abstract: A metal oxide-carbon composite includes a carbon aerogel with an oxide overcoat. The metal oxide-carbon composite is made by providing a carbon aerogel, immersing the carbon aerogel in a metal oxide sol under a vacuum, raising the carbon aerogel with the metal oxide sol to atmospheric pressure, curing the carbon aerogel with the metal oxide sol at room temperature, and drying the carbon aerogel with the metal oxide sol to produce the metal oxide-carbon composite. The step of providing a carbon aerogel can provide an activated carbon aerogel or provide a carbon aerogel with carbon nanotubes that make the carbon aerogel mechanically robust.
    Type: Application
    Filed: January 27, 2010
    Publication date: July 29, 2010
    Inventors: Marcus A. Worsley, Thomas Yong-Jin Han, Joshua D. Kuntz, Octavio Cervantes, Alexander E. Gash, Theodore F. Baumann, Joe H. Satcher, JR.
  • Publication number: 20100162913
    Abstract: An energetic composition and system using amassed energetic multilayer pieces which are formed from the division, such as for example by cutting, scoring, breaking, crushing, shearing, etc., of a mechanically activatable monolithic energetic multilayer(s) (e.g. macro-scale sheets of multilayer films), for enhancing the sensitivity of the energetic composite and system to mechanical initiation of self-sustained reaction. In particular, mechanical initiation of the energetic composition may be achieved with significantly lower mechanical energy inputs than that typically required for initiating the monolithic energetic multilayers from which it is derived.
    Type: Application
    Filed: May 18, 2007
    Publication date: July 1, 2010
    Inventors: Alexander E. Gash, Troy W. Barbee, JR.
  • Publication number: 20100139823
    Abstract: A method for creating a pyrophoric material according to one embodiment includes thermally activating a carbon foam for creating micropores therein; contacting the activated carbon foam with a liquid solution comprising a metal salt for depositing metal ions in the carbon foam; and reducing the metal ions in the foam to metal particles. A pyrophoric material in yet another embodiment includes a pyrophoric metal-carbon foam composite comprising a carbon foam having micropores and mesopores and a surface area of greater than or equal to about 2000 m2/g, and metal particles in the pores of the carbon foam. Additional methods and materials are also disclosed.
    Type: Application
    Filed: December 5, 2008
    Publication date: June 10, 2010
    Inventors: Alexander E. Gash, Joe H. Satcher, JR., Randall L. Simpson, Theodore F. Baumann, Marcus A. Worsley
  • Patent number: 7687746
    Abstract: A heating apparatus comprising an energetic nanolaminate film that produces heat when initiated, a power source that provides an electric current, and a control that initiates the energetic nanolaminate film by directing the electric current to the energetic nanolaminate film and joule heating the energetic nanolaminate film to an initiation temperature. Also a method of heating comprising providing an energetic nanolaminate film that produces heat when initiated, and initiating the energetic nanolaminate film by directing an electric current to the energetic nanolaminate film and joule heating the energetic nanolaminate film to an initiation temperature.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: March 30, 2010
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Joseph W. Tringe, Alexander E. Gash, Troy W. Barbee, Jr.