Patents Represented by Attorney, Agent or Law Firm Jacob Shuster
  • Crane testing apparatus and associated load testing method
    Patent number: 6578441
    Abstract: Two groups of test weights are stacked on a horizontal base frame transported to an aligned position underlying a crane to be tested for loading capacity. Such base frame is loaded with the test weights stacked thereon after assembly into a test apparatus by removable attachment through intermediate lift beams to an upper main lift beam through which such loading is transmitted directly to the crane.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: June 17, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Frank J. Jurenka, Keith P. Thomas
  • Cooled jet blast deflectors for aircraft carrier flight decks
    Patent number: 6575113
    Abstract: Jet blast deflector panels hinged to the deck of an aircraft carrier are pivotally displaced through mechanical actuators to raised angular positions for deflecting exhaust plumes from jet propelled aircraft during take-off to protect closely spaced approaching aircraft which are to take-off thereafter in front of the deflector panels. The underside surface of each deflector panel is formed from a thermal insulating material to provide thermal protection from heating by impinging jet exhaust plumes, and is subsequently cooled by blasts of fluid or air beneath the deck when the deflector panel is in its lowered retracted position.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: June 10, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Eugene C. Fischer, Dale A. Sowell, John Wehrle, Peter O. Cervenka
  • Stern depressor type motion stabilization system for marine vessel
    Patent number: 6571724
    Abstract: Depressors mounted on the stern of a marine vessel are deployed by displacement from positions retracted from the seawater to positions immersed therein so as to divert exit flow of the seawater along retarded flow paths from the stern during vessel travel. Such deployment of the depressors is regulated under motion stabilizing control to produce corrective roll and pitch inducing forces on the vessel in response to diversions of the exit flow by the depressors.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: June 3, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Young T. Shen
  • Programmed logistic system and method for transportation and reception of commodities
    Patent number: 6567788
    Abstract: Quantities of commodities are transported in sequence from a source to a receiving location in accordance with a logistic program through which constraints based on conditions at the source and receiving location are imposed so as to regulate timing of commodity transport involving a minimized number of sequential transits during usage for delivery at a rate in excess of the usage rate to maintain a specified inventory reserve at the receiving location.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: May 20, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Ralph B. Johnson, Jr.
  • Load transporting modular platform system
    Patent number: 6561739
    Abstract: Connector housings attached to modules are received within aligned socket formations attached to the modules held assembled therewith forming a platform by joints established between such connector housings and the socket formations by selectively controlled locking balls projected through side walls of the connector housings into the socket formations. Such projection of the balls is guided through sleeves adjustably positioned on the housing side walls.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: May 13, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Himatlal J. Garala
  • Overboard rescue system
    Patent number: 6558218
    Abstract: A rescue mission is initiated by deployment of an unmanned water surface vehicle some distance from a location at which an overboard person may be in distress. The water surface vehicle is self-propelled under signal responsive or remote manual control for directionally guided travel toward the distress location, at which a raft stored in the vehicle is ejected and inflated so as to floatingly support thereon the person to be rescued. The deployed raft is then moved from the vehicle for delivery to a rescue location.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: May 6, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Eric C. Hansen
  • Magnetostrictive adjustment of propeller blade
    Patent number: 6544000
    Abstract: A magnetostrictive rod subject to a magnetic field generated by an electrical activating coil within a pocket of a propeller blade is held in abutment with the body of the blade to effect its deflection causing change in shape involving a variation in blade camber in accordance with electrically powered adjustment control.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: April 8, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Stuart D. Jessup, Joseph P. Teter
  • Leakage plugging method and implement
    Patent number: 6543486
    Abstract: An inflatable plug within a fragile streamlined cover attached to a rigid lance tube is pushed through a leakage hole to plug it on an upstream end by being inflated with pressurized fluid conducted through the lance tube to rupture the fragile cover and position the plug against the wall sealingly covering the upstream end of the hole.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: April 8, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Joseph H. Morris
  • Composite vibration damping system
    Patent number: 6533257
    Abstract: Plural vibration damping devices transmit to and receive energy from a distributor that is programmed to either dissipate the vibration induced energy produced by the devices or redistribute the vibration induced energy produced by some of the devices to minimize overall vibration without introduction of energy from an external source.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: March 18, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Arthur E. Clark
  • Underwater explosion protection for watercraft
    Patent number: 6530337
    Abstract: The underwater exterior surface of a watercraft is covered by a deformable protective covering formed from compartmental sections that are dimensionally sized, shaped and mechanically connected to each other for effective attachment of the assembled covering to and removal from the hull of the watercraft. The protective covering is of a cross-sectional construction arranged to provide protection against the damaging effects of underwater explosions by minimizing related adverse physical effects on the entire hull of the watercraft as well as mechanical and electrical components associated therewith.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: March 11, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Mark W. Hoffman
  • Inflatable vibration reducing fairing
    Patent number: 6517289
    Abstract: Components of a flexible fairing shroud are attached adjacent their leading edges to bushings through which the fairing shroud is angularly displaced about a protectively surrounded structure exposed to a fluid medium. Inflow of the fluid medium is thereby accommodated in a direction resulting in inflation of the fairing shroud to a desired streamline shape established and maintained between leading and trailing edges during flow of the fluid medium to substantially reduce vibrations otherwise induced by such flow.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: February 11, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: David B. Coakley, Richard K. Knutson
  • Gas turbine engine system with water injection
    Patent number: 6516603
    Abstract: A gas turbine engine is energized by a controlled supply of fuel thereto for operation under regulated conditions increasing efficiency and power output per unit mass of air under pressurized flow from a compressor to which the air is supplied with water droplets at a ratio predetermined to reduce operational temperature within the turbine engine. Operational conditions are also regulated by angular adjustment of the stator blades in the turbine stages of the gas turbine engine through which the pressurized flow of combustion products is conducted, so as to maintain a maximum inlet temperature arranged to maximize part-load efficiency.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: February 11, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Herman B. Urbach, Philip Levine
  • Hybrid hull construction for marine vessels
    Patent number: 6505571
    Abstract: The metallic midship section of a hybrid marine vessel hull is attached through transition extensions thereof to bow and stem sections of the hull made of a fiber reinforced plastic having transition extensions of reduced cross-section abutting and/or overlapping the transition extensions of the metallic hull section and held firmly attached thereto by holding attachments carried by cover plating extending between the overlapped transition extensions.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: January 14, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Milton O. Critchfield, Chin-Tun Kuo, Loc B. Nguyen
  • Time-frequency dependent damping via Hilbert damping spectrum
    Patent number: 6507798
    Abstract: The damping behavior of a physical system is evaluated by mapping of damping loss factors calculated from time-dependent amplitude and frequency functions to form a full time-frequency dependent damping spectrum. The time-dependent amplitude and frequency functions are formulated by calculations based on the intrinsic mode functions derived by empirical mode decomposition of the original time series dataset representing the system behavior. The amplitude and frequency functions for each intrinsic mode function are calculated from the polar representation of the Hilbert transform-based time-dependent complex function corresponding to the intrinsic mode function.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: January 14, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Liming W. Salvino, Robert Cawley
  • Method of manufacturing rein infused core structure
    Patent number: 6495088
    Abstract: A layered arrangement is fabricated by deposit on a mold surface to form a porous foam core of coated microballoons which is assembled within a sandwich between layers of fibrous skin. The sandwich supported on the mold surface is then is sealed within a film enclosure through which a one-shot infusion of liquid resin is performed. After curing and hardening of the infused resin, the film enclosure is removed from the sandwich to expose a multilayered structure.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: December 17, 2002
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Paul A. Coffin, Vincent J. Castelli, Deborah Houghton
  • Efficiency maximized conversion of electrical to mechanical energy by magnetostrictive transduction
    Patent number: 6489695
    Abstract: The efficiency of converting electrical energy into a mechanical output is maximized by alternatively matching selection of power supply for the drive coil applying a magnetic field to transducer element made of a magnetostrictive material having a near-zero magnetic anisotropy, or matching selection of the magnetostrictive material to the required magnetostriction for a given power supply.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: December 3, 2002
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Marilyn Wun-Fogle, James B. Restorff, Arthur E. Clark
  • Hydrodynamic propulsion flow control for modification of flap controlled lift
    Patent number: 6481363
    Abstract: Flow modifying devices are simultaneously operative on the upper and lower surfaces of a fixed stabilizer foil on the submerged pod or hull of an ocean vessel to modify the lift hydrodynamically induced under control of pivotal flaps during propulsion of the vessel. The lift otherwise induced by the pivotal flaps is directionally reversed for all angular positions thereof by the spoiler devices.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: November 19, 2002
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Wayne P. Liu
  • Neural network system for estimation of aircraft flight data
    Patent number: 6466888
    Abstract: Input parameters which correspond to operational flight data of an aircraft within a predetermined flight domain, are defined through measured variable state parameters generated during aircraft flight, utilizing a neural network trained by exemplars corresponding to such variable state parameters and reference information on the aircraft for data processing of real time values of the variable state parameter measurement to calculate values of the input parameters and provide a corresponding output as a reliable estimate of aircraft flight data such as airspeed, sideslip and angle of attack.
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: October 15, 2002
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Kelly McCool, David Haas
  • Propulsion nacelle alignment system for tilt-rotor aircraft
    Patent number: 6457672
    Abstract: The propulsion nacelles of a tilt-rotor type aircraft are adjustably positioned on the aircraft wings under control of a programmed actuator in response to error signals produced by change in angle of attack between the aircraft fuselage and the air stream to minimize drag imposed on the aircraft by the air stream during flight.
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: October 1, 2002
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Tsze C. Tai
  • Piezoelectrically controlled vibration reducing mount system
    Patent number: 6443416
    Abstract: Equipment having a source of vibration associated therewith is mechanically supported with strict positional tolerance on a floor surface by an elastic cylinder made of rubber. Such elastic cylinder is stiffened by a bulge restricting sleeve made of piezoelectric ceramic material so that fluctuating voltage applied thereto from a source of electrical energy under active control, during the continuous sensing of vibrations transferred to the surface, nulls the bulge restriction of the stiffening sleeve to reduce the vibrations transferred to the surface within the operational frequency range of the vibration source associated with the equipment.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: September 3, 2002
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Kenneth E. Jones