Patents Represented by Attorney A. L. Branning

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  • Real-time audio spectrum analyzer
    Patent number: 4275460
    Abstract: A propeller modulation enhancement and display system which suppresses hull cho and displays propeller modulation of a return sonar signal in real time. The real-time operation is obtained through the use of a multichannel frequency spectrum analyzer having a plurality of narrow bandpass filters covering the frequency of interest. Suppression of the hull echo is obtained through the use of a narrow band-reject filter having a variable center frequency. The filter precedes the multichannel frequency spectrum analyzer.
    Type: Grant
    Filed: September 26, 1966
    Date of Patent: June 23, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: John P. Zirbel
  • Deepwater target-seeking mines
    Patent number: 4274333
    Abstract: 1.
    Type: Grant
    Filed: December 28, 1959
    Date of Patent: June 23, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Glen T. Lampton
  • Radar video converter
    Patent number: 4274095
    Abstract: The present invention relates to a two-dimensional radar video converter vided with an adaptive video processor using, in series, azimuth integration, mean level detection, and batch/batch correlation for target detection. The radar video converter also includes a computer interface module which selects from a plurality of threshold levels the signal thresholds to be exceeded in detecting targets in a particular radar environment. Together, the adaptive video processor and the computer interface module convert raw radar video into useful data which can be entered into a computer or used to display target detections at a convenient output.
    Type: Grant
    Filed: March 21, 1979
    Date of Patent: June 16, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Joe Phipps, Robert E. Thurber, Richard J. Prengaman
  • Embedded dielectric rod antenna
    Patent number: 4274097
    Abstract: A compact, directional antenna element for achieving narrow beamwidths and ide bandwidths. The element is formed from a polyrod having a high dielectric constant embedded in a wave guide made of a second medium having a dielectric constant slightly lower than that of the rod.
    Type: Grant
    Filed: March 21, 1980
    Date of Patent: June 16, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Albert D. Krall, Albert M. Syeles
  • Semi-active optical fuzing
    Patent number: 4269121
    Abstract: Device for causing projectiles to detonate at the optimum point along their ndividual trajectories when fired at nearly any type of target. Detonation at this point will result in the greatest damage to the intended target.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: May 26, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Irving I. Sochard
  • Method for high strength double base solventless gun propellant
    Patent number: 4267132
    Abstract: A method for manufacturing crosslinked double base propellants which incls compounding the propellant with no more than 0.1 weight percent of a crosslinking catalyst, partially curing the propellant by a mild heat prior to extrusion until the energetic binder is plasticized but not crosslinked, and extruding the propellant in a ram extruder at a temperature from 120.degree. F. to 150.degree. F. before the crosslinking mechanism has become too advanced for extrusion.
    Type: Grant
    Filed: May 28, 1974
    Date of Patent: May 12, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Larry D. Henderson, Craig E. Johnson
  • Method of age testing rubber based propellants
    Patent number: 4262541
    Abstract: A method of testing the aging properties of a rubber-based propellant by exposing a stressed sample of the rubber-based propellant to a controlled flow of air containing a carefully controlled concentration of ozone, and periodically measuring the physical properties.
    Type: Grant
    Filed: March 28, 1979
    Date of Patent: April 21, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Merrit Jacobs
  • Graded gap semiconductor detector
    Patent number: 4263604
    Abstract: A variable temperature method for the preparation of single and multiple taxial layers of single-phase (e.g., face-centered cubic), ternary lead chalcogenide alloys (e.g., lead cadmium sulfide, [Pb.sub.1-w Cd.sub.w ].sub.a [S].sub.1-a where w varies between zero and fifteen hundredths, inclusive, and a=0.500.+-.0.003), deposited upon substrates of barium fluoride, BaF.sub.2, maintained in near thermodynamic equilibrium with concurrently sublimated lead alloy and chalcogenide sources. During preparation, the temperature of the substrate is varied, thereby providing an epilayer with graded composition and predetermined electrical and optical properties along the direction of growth. This growth technique can be used to produce infrared lenses, narrowband detectors, and double heterojunction lasers.
    Type: Grant
    Filed: April 25, 1980
    Date of Patent: April 21, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: James D. Jensen, Richard B. Schoolar
  • Recrystallization of hexsanitrostilbene from nitric acid and water
    Patent number: 4260837
    Abstract: The production of 2,2',4,4',6,6'-hexanitrostilbene-I (HNS-I) having finely ivided particles of uniform size by dissolving HNS-II in hot fuming nitric acid and then drowning the HNS-nitric acid solution in water.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: April 7, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Joseph C. Dacons
  • Hermetically sealed high pressure gas container
    Patent number: 4258739
    Abstract: A hermetically sealed high pressure gas container comprising a high stren chamber for confining the gas and a check valve fitted on and soldered to a boss formed integral with the chamber. The check valve serves as a temporary seal and permits the chamber to be charged with gas under atmospheric conditions. After charging, the inlet port of the check valve is soldered closed to provide a hermetic seal.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: March 31, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John E. Blankenship, Roy W. Hoback
  • Method to determine the shear absorption of a rubberlike material
    Patent number: 4249421
    Abstract: The shear absorption of a viscoelastic material is determined by directing acoustical energy at the viscoelastic material and sampling the backscattered signals that result when compressional waves propagate through the material and are scattered by either a fluid-filled or evacuated cavity contained therein. The backscattered signals are converted to a resonance amplitude versus frequency domain and the shear absorption of the viscoelastic material is determined from the frequency and the half-width of the resonance peaks.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: February 10, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Guillermo C. Gaunaurd, Herbert M. berall, Kurt P. Scharnhorst
  • Apparatus and process for determining the composition of fluid-filled cavities
    Patent number: 4249422
    Abstract: An apparatus and method for determining the material properties characterizing a fluid contained in a cavity inside a solid comprises analyzing the resonances in the amplitude of elastic waves scattered by the cavity. Specifically, the resonance positions and their widths are used to determine the sound speed and the density of the cavity filler. The sound speed is found from the spacing between two consecutive overtones of any mode, which asymptotically becomes uniform for the higher-index overtones. The density is obtained from the width of any high order resonance and accordingly, all the information about the material composition of the filler is contained, and can be extracted, from the high-frequency asymptotic region.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: February 10, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Guillermo C. Gaunaurd, Herbert M. berall
  • Production of antibody toward asbestos and immunoassay therewith
    Patent number: 4248854
    Abstract: The invention provides a reaction product of chrysotile asbestos with an antigenic serum protein, preferably albumin, that has particular utility as an antigen in producing antibody to asbestos. The reaction product of asbestos with an antigenic serum protein also can be used in a method for producing an antibody toward asbestos by immunizing a laboratory animal with the reaction product, of asbestos and a serum protein, allowing it to remain in the blood of the animal for a sufficient period of time and thereafter recovering antibody globulins from the laboratory animal.
    Type: Grant
    Filed: August 27, 1979
    Date of Patent: February 3, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Herbert R. Lukens, Jr.
  • Infrared proximity fuze electronic amplifier
    Patent number: 4245558
    Abstract: 1. An electronic proximity fuze for a projectile comprising transducer me for converting infrared radiation to an electrical signal, amplifying means connected to said transducer for amplifying said signal, said amplifying means including automatic gain control means for decreasing the gain of said amplifying means upon occurrence of a slowly rising signal, electronic switch means, a source of electrical energy, a detonator, means connecting said switch means said source and said detonator in electrical series circuit, means connecting said amplifying means and said electronic switch means for closing said switch means upon occurrence of a rapidly rising signal of predetermined magnitude, said last named means operating to reduce said predetermined magnitude of the signal when said automatic gain control has decreased the gain of said amplifying means.
    Type: Grant
    Filed: September 26, 1963
    Date of Patent: January 20, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Michael Flaherty
  • High resolution quantizer
    Patent number: 4246571
    Abstract: A system for digitally quantizing, at high resolution, relatively small vations of an analog input signal. Initially, a reference level signal having a preselected value close to the average magnitude of the analog signal being quantized is compared with the analog input signal. The difference between these two signals is amplified and then analog to digital converted. By an iterative process, the reference level is adjusted as necessary to closely track the gross magnitude level of the analog input signal. Analog to digital conversion is applied only to the small difference signal, thereby allowing quantization to occur with high resolution. The system automatically keeps track of gross signal excursions so that the magnitude of the quantized signals is also available to the user.
    Type: Grant
    Filed: March 23, 1978
    Date of Patent: January 20, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Michael C. Gariazzo
  • Transducer-reflector system
    Patent number: 4241432
    Abstract: An acoustical line array transducer reflector system for producing conical hell radiation patterns. One side of the ground plane reflector of the system is covered with a chloroprene rubber-cork composition. Three transformers in ferrite cup cores are wired to the line array transducer elements.
    Type: Grant
    Filed: April 21, 1967
    Date of Patent: December 23, 1980
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Lewie M. Barber, Bernie R. Criswell, Ruell F. Solberg, Jr., Benjamin F. L. Weiss
  • Plateau propellant compositions
    Patent number: 4239561
    Abstract: The addition of monobasic cupric .beta.-resorcylate to a double base propant plasticized by only nitrate esters having primary nitroxy groups in order to obtain a plateau burning characteristic.
    Type: Grant
    Filed: November 29, 1973
    Date of Patent: December 16, 1980
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Albert T. Camp, Elmer R. Csanady, Paul R. Mosher
  • Electronic breathing mixture control
    Patent number: 4236546
    Abstract: An electronic breathing mixture control system which senses and controls oxygen component partial pressure of an underwater breathing mixture. Three oxygen sensors disposed within a mix chamber generate voltages proportional to the oxygen partial pressure in the mixture. These voltages are processed and compared with reference voltages using digital logic circuitry. The resulting processed signals control two light emitting diodes warning the user of improper oxygen partial pressure and in addition control a switch that actuates an oxygen valve which either restricts oxygen flow to the mix chamber or allows more oxygen to flow therein.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: December 2, 1980
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Claude E. Manley, John J. Pennella, Donald J. Deaton, Alan L. Crandall, James P. Hersey
  • Coherent frequency shift key demodulator
    Patent number: 4234852
    Abstract: Disclosed is a frequency shift key demodulator for the coherent detection of both mark and space tones. Cross coupled phase locked loops lock onto and track the difference in frequency between translated mark and space tones. An additional set of cross coupled phase locked loops locks onto and tracks overall frequency drift of the mark and space tones. Signals are generated within the first set of cross coupled loops allowing for coherent detection thereby permitting detection during signal to noise ratios of less than one. Loop bandwidths can be independently controlled and are independent of the data rate thus permitting wide system flexibility.
    Type: Grant
    Filed: November 15, 1978
    Date of Patent: November 18, 1980
    Inventor: John W. McCorkle
  • High angle-of-attack missile control system for aerodynamically controlled missiles
    Patent number: 4234142
    Abstract: A missile control system can avoid instability at high angles of attack by cross-coupling roll and steering sensor signals between the steering and roll channels. The control law for the system is derived by use of the Model-in-the-Performance Index Technique which makes the system respond at high angles as it does at low angles with desired response times, bandwidths, and stability.
    Type: Grant
    Filed: June 8, 1978
    Date of Patent: November 18, 1980
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: David J. Yost, Arthur Arrow, Robert L. Konigsberg