Patents by Inventor Stephen J. Obrey

Stephen J. Obrey 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: 11879689
    Abstract: A pump assisted heat pipe may combine the low mass flow rate required of latent heat pipe transfer loops with a hermetically sealed pump to overcome the typical heat pipe capillary limit. This may result in a device with substantially higher heat transfer capacity over conventional pumped single-phase loops, heat pipes, loop heat pipes, and capillary pumped loops with very modest power requirements to operate. Further, one or more embodiments overcome the gravitation limitations in the conventional heat pipe configuration, e.g., when the heat addition zone is above the heat rejection zone, the capillary forces are required to transfer the liquid from the heat rejection zone to the heat addition zone against gravity.
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: January 23, 2024
    Assignee: TRIAD NATIONAL SECURITY, LLC
    Inventors: Robert S. Reid, Robert A. Zimmerman, Cody M. Williams, Morgan T. Biel, Stephen J. Obrey, Todd A. Jankowski, Justin Simpson, Martin J. Ward, Lydia Wermer
  • Patent number: 11340023
    Abstract: A pump assisted heat pipe may combine the low mass flow rate required of latent heat pipe transfer loops with a hermetically sealed pump to overcome the typical heat pipe capillary limit. This may result in a device with substantially higher heat transfer capacity over conventional pumped single-phase loops, heat pipes, loop heat pipes, and capillary pumped loops with very modest power requirements to operate. Further, one or more embodiments overcome the gravitation limitations in the conventional heat pipe configuration, e.g., when the heat addition zone is above the heat rejection zone, the capillary forces are required to transfer the liquid from the heat rejection zone to the heat addition zone against gravity.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: May 24, 2022
    Assignee: Triad National Security, LLC
    Inventors: Robert S. Reid, Robert A. Zimmerman, Cody M. Williams, Morgan T. Biel, Stephen J. Obrey, Todd A. Jankowski, Justin Simpson, Martin J. Ward, Lydia Wermer
  • Patent number: 8449650
    Abstract: Gases are stored, separated, and/or concentrated. An electric field is applied across a porous dielectric adsorbent material. A gas component from a gas mixture may be selectively separated inside the energized dielectric. Gas is stored in the energized dielectric for as long as the dielectric is energized. The energized dielectric selectively separates, or concentrates, a gas component of the gas mixture. When the potential is removed, gas from inside the dielectric is released.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: May 28, 2013
    Assignee: Los Alamos National Security, LLC
    Inventors: Robert P. Currier, Stephen J. Obrey, David J. Devlin, Jose Maria Sansinena
  • Publication number: 20100319534
    Abstract: Gases are stored, separated, and/or concentrated. An electric field is applied across a porous dielectric adsorbent material. A gas component from a gas mixture may be selectively separated inside the energized dielectric. Gas is stored in the energized dielectric for as long as the dielectric is energized. The energized dielectric selectively separates, or concentrates, a gas component of the gas mixture. When the potential is removed, gas from inside the dielectric is released.
    Type: Application
    Filed: June 15, 2010
    Publication date: December 23, 2010
    Applicant: LOS ALAMOS NATIONAL SECURITY, LLC
    Inventors: Robert P. Currier, Stephen J. Obrey, David J. Devlin, Jose Maria Sansinena
  • Patent number: 6322890
    Abstract: Heterogeneous solid supra-molecular alkylalumoxanes. A supra-molecular architecture of a nano-particle foundation on which an alkylalumoxane is built. Supra-molecular alkylalumoxanes comprise (a) an aluminum-oxide nanoparticle, (b) a linkage unit, and (c) an alkylalumoxane. Supra-molecular alkylalumoxanes are prepared by the reaction of a chemically modified aluminum-oxygen nanoparticle with either a pre-formed alkylalumoxane or an alkylaluminum compound, with subsequent hydrolysis or reaction with other alkylalumoxane yielding reagents. The supra-molecular alkylalumoxanes are active as catalysts for the polymerization of organic monomers and as co-catalysts with transition metal components for the polymerization of olefins.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: November 27, 2001
    Assignee: Wm. Marsh Rice University
    Inventors: Andrew Ross Barron, Stephen J. Obrey