Patents Represented by Attorney James T. Shepherd
  • Patent number: 7484447
    Abstract: A mine clearing device comprises a substantially hollow body forming a cavity. An eccentric ballast is disposed within the cavity and is rotated by a motor powered by an internal power source, thereby imparting rotational motion to the device. A plurality of anti-axial projections of varying lengths and sizes are mounted on the outer surface of the body to interact with the terrain and, thus, impart unbiased motion to the body as it rotates and traverses a mine field. The outer surface of the body is made of blast resistant material. A shock absorbent material, disposed within the cavity, absorbs the explosive force of mines. Circuitry or a marker substance may be used to record or mark the path traveled by the device.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: February 3, 2009
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventor: Helmut Portmann
  • Patent number: 7467579
    Abstract: A mine clearing device has an outer body forming a cavity capable of holding a pressurized substance, a conduit in the outer surface for expelling the pressurized substance from the body to thereby cause the device to rotate and traverse a mine field, and a plurality of anti-axial projections on the surface of the outer body that interact with the terrain to impart unbiased motion to the body as it rotates. A regulator controls the flow of the substance and a nozzle directs it as it exits the conduit. The outer body is made of blast resistant material. A shock absorbent material, disposed within the shell, absorbs the explosive force of mines. Circuitry or a marker substance may be used to record the position of the device.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: December 23, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Helmut Portmann
  • Patent number: 7448527
    Abstract: A fastener device has a body member for welding and securing structural members together. The body member has a lateral bore extending between an upper flat side and a lower flat side. The sides each have a pattern of externally facing grooves communicating with the lateral bore and an exothermic material fills the patterns of grooves, the lateral bore and a radially extending bore communicating with the lateral bore. A fuse in the radial bore produces intense heat in the exothermic material to initiate an exothermic reaction to melt at least some of the body member, exothermic material, and structural members and weld the body member and structural members together. The man-portable, self-contained, reliable, fastener device permits a relatively unskilled workman to securely interconnect the structural members together at a primitive work site without requiring ancillary equipment.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: November 11, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Kenneth Ford
  • Patent number: 7428939
    Abstract: A flexible skirt-cell system is provided for a hovercraft having a propulsion system mounted to interface with water and a flexible skirt having an upper flexible panel section and a lower flexible finger section. The panel section extends around the bow, stern and two sides of the hovercraft hull and the finger section extends around the hull below the panel section and is connected to the panel section from a forward-abeam location and forward along the two sides and across the bow. Fans create pressurized air that is fed through air ducts to form a pressurized air cushion that supports the hovercraft. Interconnected flexible cells are connected between the panel and finger sections from the forward-abeam locations rearward to the stern. Additional air ducts pass pressurized air from the fan units to inflate the cells, thereby elevating the stern and raising the propulsion system above the water.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: September 30, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: John Ducote
  • Patent number: 7421349
    Abstract: A device, and method, detects the presence of developing faults in rolling element bearings. Detection is accomplished by measuring the vibration of the apparatus in which the bearing is operating (motor, generator, engine, etc.) and searching for signatures unique to bearing faults. These signatures are predicted by a fault signature model and recognized by a detector, both of which are part of this invention.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: September 2, 2008
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventor: Jason Stack
  • Patent number: 7406001
    Abstract: An underwater acoustic beacon comprises a cylindrical transducer and at least one spiral wavefront transducer aligned along a common central axis. For use in underwater navigation, the cylindrical and spiral wavefront transducers are activated singly and in combination in accordance with a prescribed sequence.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: July 29, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Benjamin Dzikowicz
  • Patent number: 7386151
    Abstract: Identity and biometric data are collected from individuals. The collected data is used to form biometric data packages, each of which contains information about one biometric feature and identity data associated with the corresponding individual. Each biometric data package is stored in a categorical fashion based on its biometric feature. A current query from a requesting source includes at least one monitored biometric feature of an individual of interest. A first correlation is performed between the current query's monitored biometric feature and the same type of biometric feature associated with those of the biometric data packages previously stored in a categorical fashion. A second correlation is performed between the current query's monitored biometric feature and the monitored biometric feature associated with each of the previous queries. Results of the correlations can be indications of suspicious behavior that was used by the requesting source to form the current query.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: June 10, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Elan Moritz
  • Patent number: 7383019
    Abstract: A field data collection and relay station is equipped to receive sensor data from locations in a region. The station has directional antennas that are focused to transmit and receive energy in and from unique directions. The station establishes a wireless network in which the sensor data is formatted and distributed to one or more of the directional antennas. As a result, the sensor data is wirelessly transmitted in at least one unique direction.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: June 3, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Steve Thorsted, Eural Chestang, Scott Chandler, Dave Silnutzer
  • Patent number: 7373523
    Abstract: Digital data is prepared for storage in a secure fashion. Each data byte of a data file is encrypted. A unique bit number is assigned to each data bit in the encrypted data bytes where the bit number identifies a position of the data bit in the data file. Each such bit number is encrypted to generate a corresponding encrypted bit number. A data package is generated for each data bit. The data package includes a first data byte containing (i) a value of the data bit, and (ii) a bit storage location, at least one second data byte identifying the data file with which the data bit is associated, and at least one third data byte containing the encrypted bit number associated with the data bit. Each data package is transmitted to one of a plurality of storage locations based on the bit storage location identified in the data package's first data byte.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: May 13, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Elan Moritz
  • Patent number: 7342847
    Abstract: A method is provided for along-track displacement of an underwater vehicle equipped with a synthetic aperture sonar (SAS) system. The SAS system is operated as the vehicle moves through the water. Using successively-detected acoustic signals, an actual redundant phase center overlap scenario is determined that is indicative of along-track displacement of the underwater vehicle occurring between the successively-detected acoustic signals.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: March 11, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: John Oeschger
  • Patent number: 7342399
    Abstract: A system for tracking a moving magnetic target uses a magnetic anomaly sensing system to continually determine magnetic gradient tensors associated with the target and converts the magnetic gradient tensors to gradient contraction scalars. A processor uses the magnetic gradient tensors and gradient contraction scalars to determine a minimum of bearing and range to the target. A velocity of the target is determined using the determined bearing and range at two points in time as the target is moving. To continually track with the moving target, the processor determines adjustments in elevation and azimuth using the magnetic gradient tensors and gradient contraction scalars along with bearing, range and determined velocities of the target. The processor can include a routine that determines range while accounting for asphericity errors introduced by the aspherical nature of constant magnetic gradient contours associated with the target.
    Type: Grant
    Filed: April 17, 2006
    Date of Patent: March 11, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Roy Wiegert
  • Patent number: 7315485
    Abstract: A system and method of determining a classification of at least one underwater object is provided. The method includes generating at least one low-resolution imagery of an object from a plurality of frequencies produced by a detection device and extracting at least 5 characteristics of the object within the low-resolution imagery at each of the plurality of frequencies. The method further includes generating at least 15 features from the at least 5 characteristics and classifying the features to determine the identity of the at least one underwater object.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: January 1, 2008
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Jason Stack, Gerald Dobeck
  • Patent number: 7301851
    Abstract: A method and survey system for inspecting hulls of ships has a base portion and side portions defining an inspection channel in water. Sonar is mounted on the side portions transmitting acoustic signals onto a hull as a ship passes through the inspection channel, receiving reflected acoustic signal portions of the transmitted acoustic signals, and converting the reflected acoustic signal portions into electromagnetic acousto-signals corresponding to the hull and objects on the hull. An electro-optic scanning array is mounted on the base member transmitting optical signals onto the hull as the ship passes through the inspection channel, receiving reflected optical signal portions of the transmitted optical signals, and converting the reflected optical signal portions into electromagnetic opto-signals corresponding to the hull and objects on the hull. A control module receiving the corresponding electromagnetic acousto-signals and opto-signals transmits these signals as amplified RF signals.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: November 27, 2007
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Larry Mixon, Linda Lampl, Thomas Herbert
  • Patent number: 7299714
    Abstract: A telescoping lever arm comprises a tube and a rod. The tube has an opening at one end thereof and has an inner circumferential dimension along the inside thereof. The opening is smaller than the inner circumferential dimension of the tube. The rod has an outer circumferential dimension that is smaller than that of the tube's opening. The rod resides partially in the tube and extends therefrom via the tube's opening. At least one annular flange is coupled to the rod at a portion thereof residing in the tube. Each such annular flange is defined by a circumferential dimension that is larger than that of the tube's opening and smaller than the inner circumferential dimension of the tube. The other end of the tube is configured to be coupled to a workpiece or an adapter that can be coupled to a workpiece.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: November 27, 2007
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventor: Richard Jermyn
  • Patent number: 7298277
    Abstract: A system is provided for monitoring one or more depth associated parameters of an object submerged in water. A first set of alarm devices are mounted in the system's housing such that they are accessible from the exterior thereof. The first set of alarm devices, defined by an audio generator, a tactile generator, and a light, are initiated in accordance with a predetermined initiation scheme when at least one of the monitored parameters does not satisfy predetermined threshold criteria associated therewith. A second set of alarm devices are tethered to the system's housing for remote positioning with respect thereto. The second set of alarm devices utilize the same types of alarm devices as the first set of alarm devices and are also initiated in accordance with the predetermined initiation scheme.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: November 20, 2007
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: William D. Olstad, Dennis G. Gallagher
  • Patent number: 7296528
    Abstract: A platform for providing an interface between a host vessel and ship-to-shore craft has a water buoyant surface that is transportable on the host vessel, an angled deck within the surface, an inner and outer ramp, and an inner and outer deck of different deck heights within the platform.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: November 20, 2007
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Christopher J. Doyle, Robert W. James
  • Patent number: 7299152
    Abstract: Event data associated with possible terrorist activities occurring at geographically-dispersed locations is monitored and analyzed. Event data collected from the locations is delineated by one or more data classes. Statistical analyses performed on the event data are based on one of a number of unique time periods or blocks. Results of the statistical analyses are used in the performance of a number of correlations in order to identify patterns occurring in the data classes and/or correlations between the data classes.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: November 20, 2007
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventor: Elan Moritz
  • Patent number: 7296530
    Abstract: An unmanned system performs inspection, identification and/or neutralization of underwater objects. An unmanned vehicle that operates at a water's surface stows underwater crawling and/or swimming vehicles that can operate underneath a water's surface. A winch associated with each robotic vehicle is mounted on the unmanned vehicle. An electro-mechanical tether electrically and mechanically couples a corresponding robotic vehicle to the unmanned vehicle, and is mechanically coupled to a corresponding winch for control of the paying out and reeling in thereof.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: November 20, 2007
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Charles Bernstein, John Dudinsky, Paul Moser, Daniel Kucik, Doug Freeman, David Jennings
  • Patent number: 7272242
    Abstract: A method of object detection in an image uses a background anomaly approach that searches for anomalies of a particular size and shape that are distinguishable from the image's local background. Included is a geometric classifier used to distinguish regularly-shaped objects from irregularly-shaped objects.
    Type: Grant
    Filed: April 26, 2004
    Date of Patent: September 18, 2007
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Andrew J. Nevis, James F. Bryan, Brett W. Cordes, James S. Taylor, Mary C. Hulgan
  • Patent number: 7266939
    Abstract: A moisture-absorbing material and method of making same are provided. Hollow fibrous tubes of cotton are sequentially dried, combed in a direction to substantially longitudinally align the hollow fibrous tubes of cotton, and stretched, twisted about and compressed in this direction. A powder material can be mixed with the hollow fibrous tubes of cotton. The powder material is inert with respect to the hollow fibrous tubes of cotton and initiates a chemical reaction that generates water when exposed to water.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: September 11, 2007
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Robert Woodall, Felipe Garcia