Patents Assigned to United States of America as represented by the Administrator of the National Aeronautics and Space Administration (NASA)
  • Patent number: 9440752
    Abstract: A method for increasing density of a region of a porous, phenolic bonded (“PPB”) body adjacent to a selected surface to increase failure tensile strength of the adjacent region and/or to decrease surface recession at elevated temperatures. When the surface-densified PPB body is brought together with a substrate, having a higher failure tensile strength, to form a composite body with a PPB body/substrate interface, the location of tensile failure is moved to a location spaced apart from the interface, the failure tensile strength of the PPB body is increased, and surface recession of the material at elevated temperature is reduced. The method deposits and allows diffusion of a phenolic substance on the selected surface. The PPB body and the substrate may be heated and brought together to form the composite body. The phenolic substance is allowed to diffuse into the PPB body, to volatilize and to cure, to provide a processed body with an increased surface density.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: September 13, 2016
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (NASA)
    Inventors: Margaret M. Stackpoole, Christian Espinoza
  • Patent number: 9423799
    Abstract: An information processing system and method for adaptively selecting an aircraft descent flight path for an aircraft, are provided. The system receives flight adaptation parameters, including aircraft flight descent time period, aircraft flight descent airspace region, and aircraft flight descent flyability constraints. The system queries a plurality of flight data sources and retrieves flight information including any of winds and temperatures aloft data, airspace/navigation constraints, airspace traffic demand, and airspace arrival delay model. The system calculates a set of candidate descent profiles, each defined by at least one of a flight path angle and a descent rate, and each including an aggregated total fuel consumption value for the aircraft following a calculated trajectory, and a flyability constraints metric for the calculated trajectory.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: August 23, 2016
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (NASA)
    Inventors: Minghong G. Wu, Steven M. Green
  • Patent number: 9371140
    Abstract: A system and method for providing information to a crew of the aircraft while in-flight. The system includes a module having: a receiver for receiving a message while in-flight; a filter having a set of screening parameters and operative to filter the message based on the set of screening parameters; and a converter for converting the message into an audible message. The message includes a pilot report having at least one of weather information, separation information, congestion information, flight deviation information and destination information. The message is sent to the aircraft by another aircraft or an air traffic controller.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: June 21, 2016
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (NASA)
    Inventors: Walter W Johnson, Joel B. Lachter, Vernol Battiste, Robert W Koteskey
  • Patent number: 9336484
    Abstract: An efficient method and system for real-time or offline analysis of multivariate sensor data for use in anomaly detection, fault detection, and system health monitoring is provided. Models automatically derived from training data, typically nominal system data acquired from sensors in normally operating conditions or from detailed simulations, are used to identify unusual, out of family data samples (outliers) that indicate possible system failure or degradation. Outliers are determined through analyzing a degree of deviation of current system behavior from the models formed from the nominal system data. The deviation of current system behavior is presented as an easy to interpret numerical score along with a measure of the relative contribution of each system parameter to any off-nominal deviation. The techniques described herein may also be used to “clean” the training data.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: May 10, 2016
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (NASA)
    Inventor: David J. Iverson
  • Patent number: 9327822
    Abstract: The present invention provides an aircraft having variable airframe geometry for accommodating efficient flight. The aircraft includes an elongated fuselage, an oblique wing pivotally connected with said fuselage, a wing pivoting mechanism connected with said oblique wing and said fuselage, and a brace operably connected between said oblique wing and said fuselage. The present invention also provides an aircraft having an elongated fuselage, an oblique wing pivotally connected with said fuselage, a wing pivoting mechanism connected with said oblique wing and said fuselage, a propulsion system pivotally connected with said oblique wing, and a brace operably connected between said propulsion system and said fuselage.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: May 3, 2016
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics & Space Administration (NASA)
    Inventors: John E. Melton, Michael R. Dudley
  • Patent number: 9296474
    Abstract: Disclosed is a novel adaptive control method and system called optimal control modification with normalization and covariance adjustment. The invention addresses specifically to current challenges with adaptive control in these areas: 1) persistent excitation, 2) complex nonlinear input-output mapping, 3) large inputs and persistent learning, and 4) the lack of stability analysis tools for certification. The invention has been subject to many simulations and flight testing. The results substantiate the effectiveness of the invention and demonstrate the technical feasibility for use in modern aircraft flight control systems.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: March 29, 2016
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics & Space Administration (NASA)
    Inventors: Nhan T. Nguyen, John J. Burken, Curtis E. Hanson
  • Patent number: 9297907
    Abstract: System and method for monitoring receipt and estimating flux value, in real time, of incident radiation, using two or more nanostructures (NSs) and associated terminals to provide closed electrical paths and to measure one or more electrical property change values ?EPV, associated with irradiated NSs, during a sequence of irradiation time intervals. Effects of irradiation, without healing and with healing, of the NSs, are separately modeled for first order and second order healing. Change values ?EPV are related to flux, to cumulative dose received by NSs, and to radiation and healing effectivity parameters and/or ?, associated with the NS material and to the flux. Flux and/or dose are estimated in real time, based on EPV change values, using measured ?EPV values. Threshold dose for specified changes of biological origin (usually undesired) can be estimated. Effects of time-dependent radiation flux are analyzed in pre-healing and healing regimes.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: March 29, 2016
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics & Space Administration (NASA)
    Inventors: Jing Li, Richard T. Wilkins, James J. Hanratty, Yijiang Lu
  • Patent number: 9227721
    Abstract: An aerodynamic control apparatus for an air vehicle improves various aerodynamic performance metrics by employing multiple spanwise flap segments that jointly form a continuous or a piecewise continuous trailing edge to minimize drag induced by lift or vortices. At least one of the multiple spanwise flap segments includes a variable camber flap subsystem having multiple chordwise flap segments that may be independently actuated. Some embodiments also employ a continuous leading edge slat system that includes multiple spanwise slat segments, each of which has one or more chordwise slat segment. A method and an apparatus for implementing active control of a wing shape are also described and include the determination of desired lift distribution to determine the improved aerodynamic deflection of the wings. Flap deflections are determined and control signals are generated to actively control the wing shape to approximate the desired deflection.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: January 5, 2016
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics & Space Administration (NASA)
    Inventor: Nhan T. Nguyen
  • Patent number: 9182394
    Abstract: Method for providing a nanopipette array for biosensing applications. A thin substrate of anodizable metal (“AN-metal,” such as Al, Mg, Zn, Ti, Ta and/or Nb) is anodized at temperature T=20-200° C., chemical bath pH=4-6 and electrical potential 1-300 Volts, to produce an array of anodized nanopipette channels, having diameters 10-50 nm, with oxidized channel surfaces of thickness 5-20 nm. A portion of exposed non-oxidized AN-metal between adjacent nanopipette channels, of length 1-5 ?m, is etched away, exposing inner and outer surfaces of a nanopipette channel. A probe molecule, is deposited on one or both surfaces to provide biosensing capability for K(?1) target molecules. Target molecule presence, in an above-threshold concentration, in a fluid passed through or adjacent to a nanopipette channel, produces characteristic detection signals associated with the probe molecule site.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: November 10, 2015
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics & Space Administration (NASA)
    Inventor: Meyya Meyyappan
  • Patent number: 9171473
    Abstract: A dynamic weather route system automatically analyzes routes for in-flight aircraft flying in convective weather regions and attempts to find more time and fuel efficient reroutes around current and predicted weather cells. The dynamic weather route system continuously analyzes all flights and provides reroute advisories that are dynamically updated in real time while the aircraft are in flight. The dynamic weather route system includes a graphical user interface that allows users to visualize, evaluate, modify if necessary, and implement proposed reroutes.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: October 27, 2015
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics & Space Administration (NASA)
    Inventors: B. David McNally, Heinz Erzberger, Kapil Sheth
  • Patent number: 9033525
    Abstract: Methods for maximizing a fraction of light energy absorbed in each of three classes of light concentrators (rectangular parallelepipeds, paraboloids and prisms) by choice of incident angle of radiation and of one or more geometrical or physical parameters (absorber thickness, paraboloid dimensions, location of paraboloid focus, prism angles, concentrator material, cladding, prism angles, etc.). Alternatively, the light energy absorbed plus the light energy that escapes through non-total internal reflection within the light concentrator can be minimized.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: May 19, 2015
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics & Space Administration (NASA)
    Inventor: Bin Chen
  • Patent number: 9024510
    Abstract: A thin film device for harvesting energy from wind. The thin film device includes one or more layers of a compliant piezoelectric material formed from a composite of a polymer and an inorganic material, such as a ceramic. Electrodes are disposed on a first side and a second side of the piezoelectric material. The electrodes are formed from a compliant material, such as carbon nanotubes or graphene. The thin film device exhibits improved resistance to structural fatigue upon application of large strains and repeated cyclic loadings.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: May 5, 2015
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics & Space Administration (NASA)
    Inventor: Bin Chen
  • Patent number: 9023182
    Abstract: The present invention is directed to a method for making an enantiomeric organic compound having a high amount of enantiomer excesses including the steps of a) providing an aqueous solution including an initial reactant and a catalyst; and b) subjecting said aqueous solution simultaneously to a magnetic field and photolysis radiation such that said photolysis radiation produces light rays that run substantially parallel or anti-parallel to the magnetic field passing through said aqueous solution, wherein said catalyst reacts with said initial reactant to form the enantiomeric organic compound having a high amount of enantiomer excesses.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: May 5, 2015
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (NASA)
    Inventor: George W. Cooper
  • Patent number: 8940145
    Abstract: A supercapacitor electrode mechanism comprising an electrically conductive, porous substrate, having one or more metallic oxides deposited on a first surface and a chemically reduced graphene oxide deposited on a second surface, to thereby provide an electrical double layer associated with the substrate. The substrate may be carbon paper or a similar substance. The layers of the supercapacitor are optionally rolled into an approximately cylindrical structure.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: January 27, 2015
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics & Space Administration (NASA)
    Inventors: Bin Chen, Meyya Meyyappan
  • Patent number: 8924069
    Abstract: A method and system for control of a first aircraft relative to a second aircraft. A desired location and desired orientation are estimated for the first aircraft, relative to the second aircraft, at a subsequent time, t=t2, subsequent to the present time, t=t1, where the second aircraft continues its present velocity during a subsequent time interval, t1?t?t2, or takes evasive action. Action command sequences are examined, and an optimal sequence is chosen to bring the first aircraft to the desired location and desired orientation relative to the second aircraft at time t=t2. The method applies to control of combat aircraft and/or of aircraft in a congested airspace.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: December 30, 2014
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics & Space Administration (NASA)
    Inventors: John T. Kaneshige, Kalmanje S. Krishnakumar
  • Patent number: 8924736
    Abstract: A method of authenticating or declining to authenticate an asserted identity of a candidate-person. In an enrollment phase, a reference PQRST heart action graph is provided or constructed from information obtained from a plurality of graphs that resemble each other for a known reference person, using a first graph comparison metric. In a verification phase, a candidate-person asserts his/her identity and presents a plurality of his/her heart cycle graphs. If a sufficient number of the candidate-person's measured graphs resemble each other, a representative composite graph is constructed from the candidate-person's graphs and is compared with a composite reference graph, for the person whose identity is asserted, using a second graph comparison metric. When the second metric value lies in a selected range, the candidate-person's assertion of identity is accepted.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: December 30, 2014
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics & Space Administration (NASA)
    Inventors: Sorin V. Dusan, Charles C. Jorgensen
  • Patent number: 8759057
    Abstract: A process for purifying laccase from an ectomycorrhizal fruiting body is disclosed. The process includes steps of homogenization, sonication, centrifugation, filtration, affinity chromatography, ion exchange chromatography, and gel filtration. Purified laccase can also be separated into isomers.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: June 24, 2014
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics & Space Administration (NASA)
    Inventors: Kenneth W. Cullings, Julia C. DeSimone, Chad D. Paavola
  • Patent number: 8733706
    Abstract: A deployable aerodynamic decelerator structure includes a ring member disposed along a central axis of the aerodynamic decelerator, a plurality of jointed rib members extending radially from the ring member and a flexible layer attached to the plurality of rib members. A deployment device is operable to reconfigure the flexible layer from a stowed configuration to a deployed configuration by movement of the rib members and a control device is operable to redirect a lift vector of the decelerator structure by changing an orientation of the flexible layer.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: May 27, 2014
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics & Space Administration (NASA)
    Inventors: Ian M. Fernandez, Ethiraj Venkatapathy, Kenneth R. Hamm
  • Patent number: 8725470
    Abstract: A method and associated system for multi-disciplinary optimization of various parameters associated with a space vehicle that experiences aerocapture and atmospheric entry in a specified atmosphere. In one embodiment, simultaneous maximization of a ratio of landed payload to vehicle atmospheric entry mass, maximization of fluid flow distance before flow separation from vehicle, and minimization of heat transfer to the vehicle are performed with respect to vehicle surface geometric parameters, and aerostructure and aerothermal vehicle response for the vehicle moving along a specified trajectory. A Pareto Optimal set of superior performance parameters is identified.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: May 13, 2014
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics & Space Administration (NASA)
    Inventors: James L. Brown, Joseph A Garcia, David J. Kinney, Jeffrey V Bowles, Nagi N Mansour
  • Patent number: 8725456
    Abstract: The prognostic tool disclosed here decomposes the problem of estimating the remaining useful life (RUL) of a component or sub-system into two separate regression problems: the feature-to-damage mapping and the operational conditions-to-damage-rate mapping. These maps are initially generated in off-line mode. One or more regression algorithms are used to generate each of these maps from measurements (and features derived from these), operational conditions, and ground truth information. This decomposition technique allows for the explicit quantification and management of different sources of uncertainty present in the process. Next, the maps are used in an on-line mode where run-time data (sensor measurements and operational conditions) are used in conjunction with the maps generated in off-line mode to estimate both current damage state as well as future damage accumulation.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: May 13, 2014
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics & Space Administration (NASA)
    Inventors: Bhaskar Saha, Kai F. Goebel, Abhinav Saxena, Jose R. Celaya