Patents Assigned to The United States of America as represented by the Secretary of the Navy
  • Patent number: 10996353
    Abstract: An inventive neutron detector includes an n-type GaN wafer and a photomultiplier, which are optically coupled with each other. The n-type GaN wafer is irradiated with neutrons from a neutron source, such as including a particle accelerator and a beryllium target. Scintillation of the n-type GaN resulting from the neutron irradiation is amplified by the photomultiplier and is analyzed using a data acquisition system.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: May 4, 2021
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Noel A. Guardala, Veerendra K. Mathur, Johnathan D. Wensman
  • Patent number: 10998487
    Abstract: Exemplary practice of the present invention provides a magnetostrictive actuator characterized by linear force output and uniform magnetic biasing. A center bias magnet drives flux through series magnetostrictive bars in opposite directions while surrounding drive coils apply flux in the same direction through the bars. The net response is substantially linear with respect to the drive coil current. A second parallel set of magnetostrictive bars completes the flux path and adds to the actuator output force. Flux leakage between the parallel bars is compensated by a ferromagnetic shunt or by a tapered magnet providing uniform flux density down the length of the magnetostrictive bars. The closed flux path allows magnetic shielding of the entire actuator, if desired.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: May 4, 2021
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: John E. Miesner, George G. Zipfel, Jr.
  • Patent number: 10997060
    Abstract: Semantically equivalent variants of a computer program are generated by applying randomly selected transforms to the computer program. Unit tests are performed on the variants of the computer program to detect a defect in the computer program.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: May 4, 2021
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Sunny J. Fugate, Jason A. Landsborough, Stephen T. Harding, Charles L. Carpenter
  • Patent number: 10994816
    Abstract: A floating device having active stabilization and a method for actively stabilizing a floating device employs a floating device that operates underwater and which may be tethered to the floor of the body of water. The floating device having active stabilization includes an internal sensor assembly which measures angular velocity and generates a real time output corresponding to a measured angular velocity and a counter-rotation assembly which generates in real time mechanical energy in the form of rotation in response to the real time output of the sensor assembly that causes a counter-rotation torque on the device body that opposes the measured angular velocity. The counter-rotation torque may be imparted by accelerating a flywheel as a reaction wheel in the opposite direction of the desired counter-rotation torque, thereby achieving stability of the device body in the form of minimizing rotation.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: May 4, 2021
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventor: Leif E. Roth
  • Publication number: 20210124797
    Abstract: Actions may be automatically determined by a machine learning system using transformational randomization. A situation set and an action sequence associated with contexts of a computer-implemented application may be obtained. Left-hand side (LHS) equivalence transformations and right-hand side (RHS) equivalence transformations are obtained based on a set of a plurality of rules for the application. LHS randomizations are obtained based on combining the plurality of LHS equivalence transformations. RHS randomizations are obtained based on combining the plurality of RHS equivalence transformations. A randomized context is obtained based on the LHS randomizations, and an action sequence is determined based on the context randomization. A randomized action sequence is obtained based on the RHS randomizations. A valid action is determined based on a probability value of a randomized rule associated with the randomized action sequence.
    Type: Application
    Filed: October 28, 2019
    Publication date: April 29, 2021
    Applicant: United States of America as represented by Secretary of the Navy
    Inventor: Stuart H. Rubin
  • Publication number: 20210125826
    Abstract: Systems and methods for growth of silicon carbide over a layer comprising graphene and/or hexagonal boron nitride, and related articles, are generally described. In some embodiments, a SiC film is fabricated over a layer comprising graphene and/or hexagonal boron nitride, which in turn is disposed over a substrate. The layer and/or the substrate may be lattice-matched with the SiC film to reduce defect density in the SiC film. The fabricated SiC film may then be removed from the substrate via, for example, a stressor attached to the SiC film. In certain cases, the layer serves as a reusable platform for growing SiC films and also serves a release layer that allows fast, precise, and repeatable release at the layer surface.
    Type: Application
    Filed: June 21, 2019
    Publication date: April 29, 2021
    Applicants: Massachusetts Institute of Technology, The Government of the United States of America, as Represented by the Secretary of the Navy, ROHM Co., Ltd.
    Inventors: Rachael L. Myers-Ward, Jeehwan Kim, Kuan Qiao, Wei Kong, David Kurt Gaskill, Takuji Maekawa, Noriyuki Masago
  • Publication number: 20210123153
    Abstract: A system is provided for use with a volume of metal particles suspended in electroplating solution. The system includes: a positional tip operable to have a positive electrical bias; a dispenser operable to dispense at least one of the metal particles and the electroplating solution; a metal base depositing system operable to deposit a metal base; a controller operable to control the positional tip to move and to control the dispenser to dispense the at least one of the metal particles and the electroplating solution; and a voltage controller operable to provide the positive electrical bias to the positional tip and to provide a negative electrical bias to the metal base so as to electroplate metal onto the metal base from the particles suspended in the electroplating solution and so as to three-dimensionally print a metal shape.
    Type: Application
    Filed: October 28, 2019
    Publication date: April 29, 2021
    Applicant: United States of America as represented by Secretary of the Navy
    Inventors: Paul D. Swanson, Teresa H. Emery-Adleman
  • Patent number: 10989243
    Abstract: An explosive bolt is provided for securing a brace in tension. The bolt includes a bar, a pair of explosives, a pair of detonators and a pair of anchors. The bar has opposing longitudinal ends and an outer thickness. Opposing bores extend inwardly from the longitudinal ends to corresponding depth ends. First and second notches reduce the thickness proximate to the corresponding depth ends. A center rod separates the notches from each other. Each explosive correspondingly inserts into a corresponding bore to a corresponding depth end. Each detonator correspondingly inserts into the corresponding bore. Each anchor secures the bar to the brace. In further embodiments, the longitudinal ends include helical male threads, and the anchors are nuts having helical female threads.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: April 27, 2021
    Assignee: United States of America, as represented by the Secretary of the Navy
    Inventors: Myron L. Thomas, Seth Leland Williamson, Joshua Geiger Clarke, Logan M. Compton
  • Patent number: 10988407
    Abstract: The present invention provides for synthesizing high optical quality multicomponent chalcogenide glasses without refractive index perturbations due to striae, phase separation or crystal formation using a two-zone furnace and multiple fining steps. The top and bottom zones are initially heated to the same temperature, and then a temperature gradient is created between the top zone and the bottom zone. The fining and cooling phase is divided into multiple steps with multiple temperature holds.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: April 27, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Vinh Q. Nguyen, Mikhail Kotov, Daniel J. Gibson, Shyam S. Bayya, Jasbinder S. Sanghera, Gryphon A. Drake
  • Patent number: 10989807
    Abstract: Systems and methods are provided for autonomous airborne vehicle control using a millimeter-wave (MMW) radar. Embodiments of the present disclosure enable a MMW radar system to support an unmanned aerial vehicle (UAV) in accomplishing missions involving interacting with peers. In an embodiment, a MMW radar module of a UAV in accordance with an embodiment of the present disclosure enables the UAV to take a measurement (e.g., regarding the location of another UAV) using the MMW radar, classify a return (e.g., a MMW radar return), determine whether the detected object is a peer, and update the vehicle velocity accordingly.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: April 27, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Christopher T. Rodenbeck, Thomas Pizzillo, Thomas Apker
  • Publication number: 20210116340
    Abstract: A tailhook with a telescopic lever, a fixed jaw, a sliding jaw, a pivot arm, and a cam arm. The lever has a second lever and a first lever end attached to a ring to which a pulling force can be applied, which allows the tailhook to test and exercise an arresting cable. The sliding jaw and the fixed jaw communicate such that the arresting cable can be accepted and clamped. The second lever end is attached to the fixed jaw, while the fixed jaw includes a thumb screw that provides tension adjustment for the fixed jaw. The pivot arm provides a clamping force, and the cam arm provides a mechanical linkage between the fixed jaw and the sliding jaw such that when force is applied to the pivot arm, the cam arm moves the sliding jaw to clamp together or unclamp the fixed jaw and the sliding jaw.
    Type: Application
    Filed: October 17, 2019
    Publication date: April 22, 2021
    Applicant: United States of America as represented by the Secretary of the Navy
    Inventor: Joseph Sobrinski
  • Publication number: 20210114743
    Abstract: A clamping device includes a length, a first member, a second member, and a tightening screw. The first member has a plurality of slots, a ball end, and an axis. The slots are perpendicularly oriented to the axis of the first member. The first member communicates with the second member such that the length of the clamping device can be adjusted. The second member has a first portion with a stop end and a second portion with a pivot end that fits into any one of the plurality of slots. The tightening screw attaches the first member to the second member. The first portion and the second portion each have a tightening screw slot for accepting the tightening screw and allowing the clamping device to be adjusted such that it allows clamping onto an existing aircraft structure via the ball end, the stop end, and the finger.
    Type: Application
    Filed: October 21, 2019
    Publication date: April 22, 2021
    Applicant: United States of America as represented by the Secretary of the Navy
    Inventors: TRAVIS BOSWELL, Adam Gregory Konneker
  • Publication number: 20210118644
    Abstract: A method for non-invasively imaging plasma parameters has been invented. Crossed dipole pairs are used to differentiate changes in the measured complex self- and mutual impedances due to plasma density and magnetic field. Measurements of the complex self-impedance and mutual impedance between pairs of antennas over a wide range of frequencies provide spatial information to create an image of the plasma density and magnetic field. The spectral information is acquired simultaneously using a Gaussian monopulse as the driver signal.
    Type: Application
    Filed: October 14, 2020
    Publication date: April 22, 2021
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Erik Tejero, George Gatling, William Amatucci
  • Patent number: 10982923
    Abstract: The invention relates to quick acting interfaces that allow for easier transportation and maintenance of precision rifles. Embodiments include an interface with an engaging segment and a receiving segment that engage one another and lock together. The engaging segment may have a series of connective bearings that fit into indentations inside the receiving segment. Embodiments allow a firearm to be modulated such that a barrel of the firearm may be disassembled without the need of any specialized equipment and reassembled without impacting the firearm's accuracy or reliability. Embodiments are scalable such that multiple interfaces can be used to adjust the total length of the firearm barrel.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: April 20, 2021
    Assignee: The United States of America, as Represented by the Secretary of the Navy
    Inventors: Steven Seghi, Kevin Kellar
  • Patent number: 10984321
    Abstract: A computational system for solving a non-deterministic polynomial problem, involving a parellel processor operable by a set of self-updatable executable instructions storable on a non-transient memory device and configuring the parallel processor to interface with an information acquisition program, heuristically acquire information, through the information acquisition program, via a first transference and a second transference, whereby heuristic information is acquired, parametrically evolve the heuristic information, whereby parametrically evolved heuristic information is provided, reuse the parametrically evolved heuristic information to further heuristically acquire information, whereby iterative parametrically evolved heuristic information is provided, and self-update the set of executable instructions based on the iterative parametrically evolved heuristic information, whereby a self-updated set of executable instructions is provided, whereby the self-updated set of executable instructions facilitates i
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: April 20, 2021
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventor: Stuart H. Rubin
  • Patent number: 10982940
    Abstract: Embodiments are directed to a releasable erosion enhancing mechanism. A vented retaining ring is configured to fit concentrically around a fuze well. The retaining ring is centered about a central longitudinal axis and has an inner surface and an outer surface. A plurality of vents is axially spaced at equal distance about the venting ring's outer surface.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: April 20, 2021
    Assignee: The United States of America, as Represented by the Secretary of the Navy
    Inventors: Benjamin M. Blazek, Lee R. Hardt, Carl A. Weinstein
  • Patent number: 10981846
    Abstract: A method for making a fuel includes reacting a conjugated diene or a mixture of conjugated dienes with a catalyst selected from the group consisting of a low valent iron catalyst stabilized with a pyridineimine ligand, an iron precatalyst coordinated to the pyridineimine ligand that is activated with a reducing agent, a low oxidation state Fe complex stabilized with a pyridineimine ligand and a coordinating ligand, and combinations thereof, thereby forming a substituted cyclooctadiene. The substituted cyclooctadiene is then hydrogenated, thereby forming cyclooctane fuel.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: April 20, 2021
    Assignees: The United States of America, as Represented by the Secretary of the Navy, The Trustees of Princeton University
    Inventors: Benjamin G. Harvey, Kyle E. Rosenkoetter, Paul Chirik, C. Rose Kennedy
  • Patent number: 10985797
    Abstract: Systems, devices, and methods are provided for mixed-mode signal processing that achieves unprecedented levels of out-of-band and in-band interference suppression. Embodiments of the present disclosure mitigate the effects of blockers and jammers, which have surfaced as issues in emerging cognitive radio systems as those networks struggle to co-exist with licensed and unlicensed users.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: April 20, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Christopher T. Rodenbeck, Jose Silva-Martinez, Aydin I. Karsilayan
  • Patent number: 10983757
    Abstract: A true random number generator including a transistor, a first voltage source, a second voltage source, and a comparator. The transistor has a first electrode, a second electrode, and a third electrode. Two of the electrodes are electrically connected by a channel of conductive nanomaterial. The first voltage source is electrically connected to the first electrode and the second voltage source is electrically connected to the second electrode. The comparator is electrically connected to the third electrode and is configured to classify a measured electrical property at the third electrode as either HIGH or LOW based on a comparison of the measured electrical property with a reference value. The measured electrical property varies over time due to random telegraph signals (RTSs) due to defects in the transistor.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: April 20, 2021
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Patrick Craig Sims, Israel Perez, John D. Rockway, Sara R. Wheeland, Oren Sternberg
  • Publication number: 20210109127
    Abstract: A nano-indent process for creating a single photon emitter in a two-dimensional materials platform comprising the steps of providing a substrate, providing a layer of polymer, providing a layer of two-dimensional material, utilizing a proximal probe, applying mechanical stress to the layer of two-dimensional material and to the layer of polymer, deforming the layer of two-dimensional material and the layer of polymer, and forming a nano-indent in the two-dimensional material. A single photon emitter in a two-dimensional materials platform comprising a substrate, a deformable polymer film, a two-dimensional material, and a nano-indent in the two-dimensional material.
    Type: Application
    Filed: July 1, 2020
    Publication date: April 15, 2021
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Berend T. Jonker, Matthew R. Rosenberger, Hsun-Jen Chuang, Joshua R. Hendrickson, Chandriker Kavir Dass