Patents Assigned to The United States of America as represented by Secretary of Army
  • Patent number: 11073160
    Abstract: Conventional gas turbine engines are generally optimized to operate at nearly a fixed speed with fixed blade geometries for the design operating condition. When the operating condition of the engine changes, the flow incidence angles may not be optimum with the blade geometries resulting in reduced off-design performance. By contrast, according to embodiments of the present invention, articulating the pitch angle of turbine blades in coordination with adjustable nozzle vanes improves performance by maintaining flow incidence angles within the optimum range at all operating conditions of a gas turbine engine. Maintaining flow incidence angles within the optimum range can prevent the likelihood of flow separation in the blade passage and also reduce the thermal stresses developed due to aerothermal loads for variable speed gas turbine applications.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: July 27, 2021
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Muthuvel Murugan, Anindya Ghoshal, Luis Bravo
  • Patent number: 11067475
    Abstract: A method for determining an estimate of an overall bedload transport rate by using bedload transport rates for a plurality of subswaths involves, generally, performing a bathymetry survey in areas at multiple times, calculating an amount of erosion and deposition and their ratio, and calculating an erosion and a deposition transport rate using the provided equations.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: July 20, 2021
    Assignee: UNITED STATES of AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY
    Inventors: Tate O McAlpin, David Abraham, John Shelley, Thad C Pratt
  • Patent number: 11066583
    Abstract: Disclosed is a method for improving interfacial adhesion of an adhesive to unprimed substrates and an improved adhesive composition, involving admixing an adhesive with an adhesive modifier, where the modifier is at least partially soluble in the at least one adhesive and includes either a non-aromatic polyol or a molecule having at least one ortho-hydroxyl substitution on a benzene ring.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: July 20, 2021
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Ngon T. Tran, Matthew A. Bartucci, Joshua A. Orlicki, Daniel B. Knorr, Jr., Joseph L. Lenhart
  • Patent number: 11062525
    Abstract: A method for generating an augmented set of images involves data collection, data processing, and data augmentation processing performed to merge images. The data collection comprises the steps of choosing objects as selected objects, choosing configurations for imaging of the selected objects, and taking pictures with a second camera to create a set of raw object images. The data processing comprises the steps of performing dynamic range adjustment on the raw object image, performing color correction for corrected images, and removing uniform background from the corrected images to result in object images. The data augmentation processing performed to merge images comprises the steps of performing range simulation or magnification for resampled images, adding blur to the resampled images, adding noise to create final object images, and merging the final object images to the field images of a first camera to create a set of augmented images.
    Type: Grant
    Filed: November 27, 2020
    Date of Patent: July 13, 2021
    Assignee: UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE ARMY
    Inventors: Kimberly E. Manser, Sina Simingalam, Joseph P. Reynolds, Jason A. Willis, Van A. Hodgkin, Roger W. Thompson, Jr.
  • Patent number: 11061083
    Abstract: Determining a distribution of carrier mobilities in a material of an electronic device includes acquiring a magnetic field-dependent Hall measurement of the material exposed to a finite number of magnetic fields, wherein the magnetic field-dependent Hall measurement includes an electrical signal generated in response to the finite number of magnetic fields being applied perpendicular to a current through the material; and processing the magnetic field-dependent Hall measurement, using a computer, to determine a continuous, least-biased distribution of carrier mobilities that match the magnetic field-dependent Hall measurement by determining, using the magnetic field-dependent Hall measurement, a probability density function of a conductance of the material; approximating the mobility spectrum to a maximum-entropy spectrum of the material; and determining an energy dependence of carrier scattering in the material based on the maximum-entropy spectrum.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: July 13, 2021
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: William A. Beck
  • Patent number: 11060831
    Abstract: Various embodiments are directed to systems, apparatus and methods for guiding flame within a device such as a thermal battery, wherein a first energetic produces a flame that is guided toward each of a plurality of secondary energetics via respective paths within the device.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: July 13, 2021
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Matthew H. Ervin, David M. Lunking
  • Patent number: 11060815
    Abstract: An accessory rail kit removably mountable on a weapon. The accessory rail kit includes an upper accessory rail extending parallel to a round of the weapon. The upper accessory rail has a front end, a back end, and an upper accessory mounting surface. A base supports the upper accessory rail. A front structural support extends downwardly from the base, proximate to the front end of the upper accessory rail, and engages the weapon. A back structural support extends downwardly from the base, proximate to the back end of the upper accessory rail, and engages the weapon. A side rail support extends downwardly from a right side of the base that engages the weapon. A stabilizer arm extends downwardly from a left side of the base, with a contoured foot attached to a lower end of the stabilizer arm, and engages the weapon.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: July 13, 2021
    Assignee: The United States of America, as represented by the Secretary of the Army
    Inventor: Justin R. Novak
  • Patent number: 11053007
    Abstract: The present invention is directed to a device for dispensing pyrophoric decoy particulates where the device is comprised of at least one payload vessel having a structural wall that forms a cavity for housing a plurality of pyrophoric particles. The structural wall has at least one opening to facilitate dispersal of the pyrophoric particles. The payload vessels are inserted inside a tubular sleeve and hermetically sealed inside the sleeve. Within the sleeve the at least one payload vessel is also in direct contact with an expulsion assembly that upon activation pushes the payload vessels and its pyrophoric contents out of the sleeve to react with the air.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: July 6, 2021
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Kendall Mills, Clinton Plaza, Juan Patino, Lauren Morris, Zhaohua Luan
  • Patent number: 11052351
    Abstract: The present invention is directed to rigid filtration apparatus comprising a filter support and filter membrane. Such filter support is comprised of a central core. Radiating from the central core are a plurality of pleats composed of two angled walls terminating at a contact point. Such longitudinal walls circumscribe a longitudinal channel situated between the walls wherein the longitudinal channel is in communication with the central core. The longitudinal walls are comprised of a plurality of openings along the walls. A filter membrane having biocidal components may be utilized with the filter support to effectively treat contaminated fluid, gas or air. Alternatively, the composition of the rigid central core and the rigid pleats may be composed of different materials to selectively remove chemicals, biological components or pharmaceuticals in a multi-stage treatment process.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: July 6, 2021
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Kimberly A. Griswold, Scott Waisner, Yao Chen
  • Patent number: 11052390
    Abstract: The invention is directed towards an Aerodynamic Automated Biological Assay Device (“AABAD”) comprising an aerodynamic substrate having a microfluidic cassette and an electronic module, and a system and a method of deploying the same to detect biological agents and hazards suspended in an atmosphere. The AABAD may be in the form/shape of a maple seed/fruit to induce autorotation. A plurality of AABADs are dispersed into the atmosphere from an aircraft or drone. The AABADs rotate via centrifugal forces without motor or active propulsion system while descending to the ground, wherein during the descent, the AABADs microfluidic cassettes collect and process the air samples via a centrifugal force formed from the autorotation generated by the airborne carrier, and to analyze and transmits the results to a remote location.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: July 6, 2021
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Robert C Bernhards, Phillip M. Mach, Kathleen J Quinn, Trevor G Glaros
  • Patent number: 11049985
    Abstract: A photo detection device comprising a contact layer through which light enters; an absorbing region positioned such that light admitted through the contact layer passes into the absorbing region; at least one diffractive element operatively associated with the absorbing region operating to diffract light into the absorbing region; the configuration of the at least one diffractive element being determined by computer simulation to determine an optimal diffractive element (or elements) and absorbing region configuration for optimal quantum efficiency for at least one predetermined wavelength detection range, the at least one diffractive element operating to diffract light entering through the contact layer such that phases of diffracted waves from locations within the photo detection device or waves reflected by sidewalls and waves reflected by the at least one diffractive element form a constructive interference pattern inside the absorbing region.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: June 29, 2021
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Kwong-Kit Choi
  • Patent number: 11041704
    Abstract: A method for preparing a composite projectile body with preformed fragments precisely embedded within the walls of the projectile body. The process utilizes a combination of additive manufacturing and advanced powder metallurgy fabrication techniques. Specifically a skeletal structure or prefabricated cage body is filled with preformed fragments. The cage structure may be situated on a mandrel or tool inside a container. The container is filled with metal powder, degassed under vacuum, and sealed. The canister is then subjected to heat and pressure to consolidate the powder to full density. The canister is then removed and the compacted billet product is further machined to obtain a desired projectile body.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: June 22, 2021
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Michael E. Ellis, Michael V. Bruno, Deepak Kapoor, Tony F. Zahrah, Roderick Rowland, Steven C. Lawver
  • Patent number: 11041701
    Abstract: The present invention is directed to composite munition cases that burn without significant residue, rugged enough to withstand rough handling, and provides for additional burn rate control over current state of the art metal and combustible munition cases. The munition cases disclose herein utilizes combustible composite materials having an inner and outer walls connected by support structures. The support structures can be radial walls or honeycomb shaped cells. In another embodiment wedge elements assembled into a cylindrical munition case is also proposed. Exemplary composite materials include felted fiber, foam celluloid and polystyrene.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: June 22, 2021
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Leon Moy, Viral Panchal, Pasquale Carlucci
  • Patent number: 11038197
    Abstract: The present invention is directed to aqueous and hybrid aqueous electrolytes that comprise a lithium salt. The present invention is also directed to methods of making the electrolytes and methods of using the electrolytes in batteries and other electrochemical technologies.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: June 15, 2021
    Assignees: University of Maryland, College Park, The United States of America as Represented By The Secretary of the Army
    Inventors: Kang Xu, Arthur Von Wald Cresce, Oleg A. Borodin, Chunsheng Wang, Liumin Suo
  • Patent number: 11029044
    Abstract: The invention is a water recovery system that utilizes waste heat and a moving air stream to recover water with minimal use of energy and without the need to move water through filtration devices. The invention may be used for recovery and reuse of water for a wide range of emergency back-up, environmental, industrial, and mission-oriented purposes.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: June 8, 2021
    Assignee: UNITED STATES of AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY
    Inventors: Jedediah B Alvey, Martin A Page, Axy Pagan-Vasquez
  • Patent number: 11029353
    Abstract: Sensing a time varying electric field includes a device or system including a spatial sensor array having one or more transistors, a circuit including a resistor connected to each of the transistors, an analog-to-digital converter (ADC) to each circuit which convert an analog voltage outputs to digital form, and an antenna to each of the transistors. The antennas sense the time varying electric field and modulate current through their respective transistors. The spatial sensor array may be stationary or in motion during the sensing.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: June 8, 2021
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Justin L. Shumaker, Geoffrey A. Slipher
  • Patent number: 11014852
    Abstract: A method of using a flowable binder for construction or repair comprises providing a binder mixture including an alkali metal silicate, fly ash, slag, and added water, where a total water-to-solids mass ratio of the binder mixture is in a range from about 0.2 to 0.5. The binder mixture is mixed together with inert particles to form a flowable mortar. The flowable mortar is distributed over a bed of coarse aggregate, and the mortar seeps into interstices of the coarse aggregate. Upon curing, a composite comprising reinforcement material embedded in a cured binder is formed.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: May 25, 2021
    Assignees: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS, UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY
    Inventors: Waltraud M. Kriven, Kaushik Sankar, Ghassan K. Al-Chaar
  • Patent number: 11016280
    Abstract: Embodiments of the present invention are directed to systems and methods for trapping and holding airborne particles, for further measurement and characterization. In the various embodiments, an optical trap is provided which generates and uses dual hollow conical beams to trap and hold absorbing and non-absorbing, spherical and irregularly shaped, liquid and solid airborne particles. The optical trap may include: a light source for generating a beam of light; optics for shaping and forming a hollow conical beam having a ring geometry from the beam of light; a trapping region where a particle can be present to be trapped; a first parabolic reflector configured to focus an inner portion of the hollow conical beam to a first focal point in the trapping region; and a second parabolic reflector configured to focus an outer portion of the hollow conical beam to a second focal point in the trapping region.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: May 25, 2021
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Yongle Pan, Aimable Kalume
  • Patent number: 11011658
    Abstract: Method and system for wavelength thermophotovoltaic (WTPV) power generation. In one embodiment, the system comprises a refractory waveguide that collects broadband infrared light generated by a heat source; a filter that filters the collected broadband infrared light to generate narrow-band infrared light; and a thermophotovoltaic (TPV) converter, thermally de-coupled from the heat source, that receives the narrow-band infrared light and converts the received narrow-band infrared light to electrical power.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: May 18, 2021
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Patrick J. Taylor, Harry S. Hier, Ivan C. Lee, Mark Dubinsky, Zun Zhang, Priyalal S. Wijewarnasuriya
  • Patent number: 11008297
    Abstract: The present invention relates to the unexpected discovery of novel multi-aromatic, multi-substituted compounds. In certain embodiments, the compounds of the invention are generated by condensing at least two phenolic- and/or aniline-containing monomers and an aromatic, aliphatic or heteroaromatic aldehyde- and/or ketone-containing monomer. In other embodiments, at least one monomer is isolated from a bio-based resource. In yet other embodiments, the compounds of the invention are bis- or poly-phenolic compounds.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: May 18, 2021
    Assignees: Rowan University, The United States of America as Represented by the Secretary of the Army
    Inventors: Alexander W. Bassett, Joseph F. Stanzione, III, John J. La Scala, Joshua M. Sadler, Owen M. Stecca