Patents Represented by Attorney Kenneth E. Walden
  • Patent number: 5192379
    Abstract: Lead fluoride acts as a densifying and stabilizing ingredient for a propent.
    Type: Grant
    Filed: November 6, 1974
    Date of Patent: March 9, 1993
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Craig E. Johnson, Paul F. Dendor
  • Patent number: 5186770
    Abstract: Bis(2-nitro-2-azapropyl) ether which is prepared by reacting one mole 1-hydroxy-2-nitro-2-azapropane with one mole of 2-nitro-2-azapropyl trifluoroacetate or 2-nitro-2-azapropyl acetate.
    Type: Grant
    Filed: June 29, 1984
    Date of Patent: February 16, 1993
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Theodore C. Adams, Jr., Horst G. Adolph
  • Patent number: 5183938
    Abstract: N,N'-Bis(4,4,4-trinitrobutyryl)hydrazine which is prepared by reacting 4,-trinitrobutyryl chloride with hydrazine in methanol at low temperature. This compound is sensitive enough to be used as an initiating explosive and thermally stable enough to be used in missile warheads.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: February 2, 1993
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Michael E. Sitzmann
  • Patent number: 5182092
    Abstract: A process for preparing hydroxylammonium nitrate which comprises reacting a hydroxylammonium salt, e.g., the sulfate, with an aqueous solution of a nitrate salt, e.g., sodium nitrate, in the presence of an organic solvent, e.g., butanol, in which the hydroxylammonium nitrate is soluble and the by-product salts are insoluble.
    Type: Grant
    Filed: March 1, 1976
    Date of Patent: January 26, 1993
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Thomas Liggett
  • Patent number: 5176788
    Abstract: A process for bonding two diamond surfaces together by(1) forming a layer of opaque nondiamond carbon material between the two mond surfaces;(2) pressing the diamond surfaces together with the opaque nondiamond material sandwiched between the diamond surfaces;(3) used pulse lased light to quickly melt all the opaque nondiamond carbon material before a significant amount of heat is lost through the diamond surface; and then(4) allowing the resulting carbon melt to cool and solidify as polycrystalline diamond which grows homoepitaxially from the diamond surfaces, bonding those surfaces together.
    Type: Grant
    Filed: July 8, 1991
    Date of Patent: January 5, 1993
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Lawrence T. Kabacoff, John Barkyoumb
  • Patent number: 5175694
    Abstract: Outputs from data bit areas of a target sensing array, above a signal throld level, are obtained by sequential scanning of groups of the data bit area aligned in columns and rows to form a digital pattern of binary data interrogated to determined the offset of the digital pattern from the centroid of the sensor array. Interrogation is performed by simultaneous counting of data bit pulses derived from separate segments of each group on opposite sides of the centroid and comparing such summations to determine the differences therebetween reflecting directional offsets from the centroid.
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: December 29, 1992
    Assignee: The United States of America as represented by The Secretary of the Navy
    Inventor: Gaetano T. Amato
  • Patent number: 5168760
    Abstract: A strain gauge comprised of a magnetic multilayer assembly exhibiting spialve effect with individual ferromagnetic layers possessing magnetostrictive properties. A magnetic field source is used to bias the magnetic moments of the ferromagnetic layers in a given direction whereby stress applied causes previously antiferromagnetically coupled moments to be angularly realigned toward a ferromagnetic arrangement. Such realignment causes a corresponding resistance change of unexpectedly high magnitude thereby providing a highly sensitive strain gauge.
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: December 8, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Marilyn Wun-Fogle, Arthur E. Clark, Kristl B. Hathaway
  • Patent number: 5165087
    Abstract: A crosstie random access memory system for reading and/or writing, utilizing permalloy thin films patterned into "wiggle" shapes to form a plurality of memory cells in an array. Address lines for reading and/or writing into the memory cells are operative through associated circuitry for writing at selected locations in the array using coincident currents. Current passed through each column of memory cells effects magnetoresistance readout in conjunction with row address lines by means of the aforementioned associated circuitry which is arranged so as to be integrated on a single substrate with the memory array.
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: November 17, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Leonard J. Schwee
  • Patent number: 5162972
    Abstract: A liquid filled variable capacitor or PFL which provides variable frequen impedance, and pulse length without changing the capacitor or PFL hardware. The capacitor is constructed from two or more conducting surfaces. A dielectric fluid mixture separates the conductors. A fluid supply system furnishes the dielectric fluid mixture to the conductors and provides for varying of the dielectric constant of the fluid and thus the capacitor operating characteristics, by varying the mixture composition. The fluid supply system has a mixing tank connected to both a supply of high dielectric constant fluid and a supply of low dielectric constant fluid. The high dielectric constant fluid and low dielectric constant fluid are mixed proportionally to obtain a dielectric fluid having the desired dielectric constant. A pump conveys the dielectric fluid between the mixing tank and the conductors while a heat exchanger controls the temperature of the dielectric fluid.
    Type: Grant
    Filed: March 30, 1982
    Date of Patent: November 10, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Ronald J. Gripshover, David B. Fenneman
  • Patent number: 5161125
    Abstract: Optical radiation is propagated through an attenuating medium to a target om which it is reflected and picked up by an echo receiver system to provide ranging and imaging data during one mode of operation. The optical radiation is transformed into acoustical pulse energy alternatively radiated to and reflected from the target in another mode of operation. The operational mode is selected so as to optimize the data extracted from the echo receiver system under different conditions affecting receiver reception.
    Type: Grant
    Filed: May 5, 1992
    Date of Patent: November 3, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Bruce Maccabee
  • Patent number: 5160802
    Abstract: A composite gun tube having a liner prestressed in compression by a surroing cylinder formed of an appropriate Nitinol alloy. A first alternative construction utilizes Nitinol in filamentary form wrapped around the liner. A second alternative construction utilizes filamentary Nitinol embedded in the liner material. In all cases, the Nitinol is formulated so that the critical transition temperature is below that of any environment which the gun tube might encounter.
    Type: Grant
    Filed: September 24, 1975
    Date of Patent: November 3, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: William M. Moscrip
  • Patent number: 5156806
    Abstract: Ternary metallic alloys of the formula Li.sub.x B.sub.y Mg.sub.z wherein 5.ltoreq.x.ltoreq.0.90, 0.05.ltoreq.y.ltoreq.0.90, 0.05.ltoreq.z.ltoreq.0.90, and x+y+z=1 and a method of preparing them. These alloys find use in areas where superlight weight, high specific strength (strength/weight ratio) and oxidation resistance are required.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: October 20, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Raymond A. Sutula, Frederick E. Wang
  • Patent number: 5155281
    Abstract: A method of preparing dichloroformals of the formula(RCH.sub.2 O).sub.2 CCl.sub.2by reaction of one mole of a thionocarbonate of the formula(RCH.sub.2 O).sub.2 C.dbd.Swith two moles of benzenesulfenyl chloride, chlorobenzenesulfenyl chloride, r methanesulfenyl chloride wherein R is --C(NO.sub.2).sub.3, --CF(NO.sub.2).sub.2, --CF.sub.2 (NO.sub.2), --CCl(NO.sub.2).sub.2, --C(NO.sub.2).sub.2 CH.sub.3, --CCl.sub.3, --CF.sub.3, or --CF.sub.2 CF.sub.3. These energetic dichloroformals are useful as explosive and propellant ingredients and as intermediates in the synthesis of other energetic explosive and propellant ingredients.
    Type: Grant
    Filed: June 1, 1984
    Date of Patent: October 13, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Michael E. Sitzmann, William H. Gilligan
  • Patent number: 5151746
    Abstract: Radiated images of the propagation path of a charged particle beam simultously projected to spaced points on a platform, are recorded therat by path tracking video cameras. Data on the positional orientations of the path tracking cameras during reception of simultaneously projected images, measured by inertial sensors, is utilized to calculate the location and direction of the beam propagation path by iterative triangulation.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: September 29, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Irving L. Kofsky, Christian A. Trowbridge
  • Patent number: 5151262
    Abstract: High purity synthetic pyrite is produced in a two-step and also in a one-step sulfidation reaction of iron powder. In a two-step process, a hydrogen-annealed iron powder is first reacted with molten sulfur at a temperature of from about 200.degree.-455.degree. C., while subjecting the reaction mass to mixing for a period sufficient to convert the iron powder to pyrrhotite, which is then reacted in a second step with sulfur vapor at a temperature of from about 420.degree.-550.degree. C., while subjecting the reaction mass to mixing for a period sufficient to convert the pyrrhotite to substantially pure pyrite. In a one-step process, iron powder is gradually heated from room temperature to about 550.degree. C. in the presence of sulfur while continuously mixing to prevent sintering and agglomeration.
    Type: Grant
    Filed: February 7, 1991
    Date of Patent: September 29, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: J. Paul Pemsler, John K. Litchfield
  • Patent number: 5149911
    Abstract: An explosive device and process of using same is provided to exert a desi force on an object without exposure to the flame heat generated upon detonation of explosive charge sandwiched between protective layers of a protective casing. One of the layers is of a thickness sufficient to absorb substantially all of the explosive released thermal energy but sufficiently thin to transfer the kinetic energy associated with the desired force for cutting and/or deformation of the object.
    Type: Grant
    Filed: February 6, 1991
    Date of Patent: September 22, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Vernon D. Ringbloom, Matthew O. Savage
  • Patent number: 5147975
    Abstract: A single ordnance fuze comprising electronic means to initiate three separate detonation outputs.The first detonation output being used for round parachute deployment and fuze probe cover release. Simultaneously a mechanical timer is started which delays deployment of a six (6) foot stand-off probe until the parachute has slowed the round almost to its terminal speed.The second detonation is initiated by depression and closure of a switch in the tip of the probe. This detonation initiates deployment a pair of detonators from the round that serve to ignite fuel that is later distributed to a prearranged site by a third explosive charge.An automatic electronic timer of short duration is also initiated by the closure of the probe switch.The third detonation is initiated by the automatic timer.The third detonation initiates a burster charge for fuel dissemination, thus completing all three of the fuze explosive functions.
    Type: Grant
    Filed: April 20, 1981
    Date of Patent: September 15, 1992
    Assignee: The United State of America as represented by the Secretary of the Navy
    Inventors: Arnold S. Munach, Alvin J. Auerbach
  • Patent number: 5145506
    Abstract: A non-magnetic, wear resistant composite of from 10 to 45 volume percent of titanium carbide or tungsten carbide particles bonded in a matrix of a nickel-titanium alloy wherein nickel comprises from 53 to 62 weight percent of the alloy with the remainder being essentially titanium.
    Type: Grant
    Filed: July 5, 1984
    Date of Patent: September 8, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: David Goldstein, Scott M. Hoover
  • Patent number: 5143047
    Abstract: A high power pulse of electrical current causes a metal conductor to expl and initiate a reaction between an aluminum or aluminum alloy powder and water which generates hydrogen gas at a high temperature and pressure. The reaction mixture is released into a second larger chamber equipped with heat exchanger which extracts useful heat energy and cools down the reaction mixture. The hydrogen gas is then separated from the solid metal oxide byproducts in the cooled reaction mixture.
    Type: Grant
    Filed: June 20, 1991
    Date of Patent: September 1, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Woodrow W. Lee
  • Patent number: 5142250
    Abstract: Conversion of electron beam energy into high power microwave energy is efted within the cavity of a Klystron device to which the electron beam is accelerated from a continuous supply source through an ion focussing channel. Ion focussing is achieved by establishment of a preionized background plasma within the channel to modulate the current of the electron beam in response to wake field effects and cause bunching of the electron beam during propagation to the Klystron device.
    Type: Grant
    Filed: January 14, 1992
    Date of Patent: August 25, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Han S. Uhm, Khanh T. Nguyen