Patents Represented by Attorney Kenneth E. Walden

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  • ECM simulator for missile fire control system vulnerability studies
    Patent number: 4969819
    Abstract: An electronic countermeasure (ECM) simulator that is particularly adaptable or use in missile fire control system vulnerability studies. A general purpose digital computer is utilized to control the simulation of true target radar skin return signals and ECM signals. These ECM signals would be representative of those produced by attacking and stand-off aircraft carrying deception and obscuration jamming.
    Type: Grant
    Filed: December 3, 1969
    Date of Patent: November 13, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Wilbur G. James
  • RF and DC desensitized electroexplosive device
    Patent number: 4967665
    Abstract: An insensitive electroexplosive device to electrically ignite explosives is isclosed. This device is inherently immune to radio frequency (RF) radiation, and also provides protection against DC or very low frequency RF induced by arcing. A central feature is use of zeners and capacitors to form a reactively balanced bridge circuit. When constructed in semiconductor form as described herein, the device is capable of incorporation in small caliber ordnance.
    Type: Grant
    Filed: July 24, 1989
    Date of Patent: November 6, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Thomas A. Baginski
  • Ice penetrating moored mine
    Patent number: 4966079
    Abstract: The invention disclosed is an anti-submarine moored mine for penetrating . The moored mine has an elongated streamline body with a heavy, strong forward hull structure that constitutes a forward penetrating means and a rearward chamber for housing an air braking means such as a parachute. The intermediate sections of the moored mine contain on specific chamber for housing an explosive means such as a warhead and a separate and distinct chamber for housing an inflatable buoyancy means used to fix the position of the moored mine in the water in the proximity of the target submarine.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: October 30, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Samuel A. Humphrey
  • Combined limiting/AGC IF system
    Patent number: 4967163
    Abstract: A gain control system for a receiver that combines some of the features of oth limiting and AGC. The AGC loop of the present invention has a relatively long time constant which reduces the gain so that the desired signal is only 10 to 15 db into limiting. This degree of limiting provides instantaneous control of small changes in signal level, but prevents the receiver from instantaneously opening to full gain in the case of loss of signal. This prevents erroneous data from being received during a time interval in which it is expected that the original signal will return.
    Type: Grant
    Filed: September 17, 1973
    Date of Patent: October 30, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: James E. Kietzer
  • Corrosion resistant metallic glass coatings
    Patent number: 4965139
    Abstract: Corrosive-resistant, amorphous metal alloy coatings for crystalline metal surfaces wherein the coating is formed by vapor deposition of a mixture of(1) from 8 to 30 atomic percent of boron, silicon, or mixtures thereof and(2) the remainder being a modified metal composition formed by modifying the composition of the crystalline metal of the surface to produce a final amorphous metal alloy coating that is anodic in reference to the crystalline metal of the surface.
    Type: Grant
    Filed: March 1, 1990
    Date of Patent: October 23, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Lawrence T. Kabacoff, William Ferrando
  • CPS alarm system
    Patent number: 4962371
    Abstract: An improved collective protection system (CPS) alarm is generally comprised f an electronic circuit board terminal box that is readily connectable to any selected point of a ship power bus system. The system is provided with a plurality of pressure transducers that are selectively disposed in associated remote zones to be continuously monitored. A master monitoring panel is connected to the terminal box and is provided with a pressure indicating meter and a series of three red, yellow, and green lights corresponding to each remotely monitored zone. Separate slave panels allows monitoring of light status at additional locations such as a pilot house and/or a damage control station. The system is appropriately shielded to prevent EMI or RFI interference.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: October 9, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Bradley A. Repp, Albert M. Wurm, Adam J. Simonoff, Spencer R. Courtney
  • Infrared image detector utilizing Schottky barrier junctions
    Patent number: 4962303
    Abstract: An infrared image detector array is constructed by depositing a plurality non-contiguous strips of infrared radiation responsive, semiconductor material on one side of a base substrate. A contiguous metal semiconductor contact in then overlaid on the plurality of strips thereby forming an individual Schottky barrier detector element wherever the metal contact crosses one of the plurality of strips.
    Type: Grant
    Filed: June 27, 1989
    Date of Patent: October 9, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Tak-Kin Chu
  • Enhanced crossite random access memory element and a process for the fabrication thereof
    Patent number: 4962477
    Abstract: An enhanced random access memory element and a process for its fabrication, herein permalloy thin films are patterned, inter alia, into a plurality of geminous memory cells to form a matrix or array of juxtaposed sloped columns thereof is disclosed. Each of the geminous memory cells is configured into a unique pattern comprising twin sub-patterns joined in an opposite fashion, i.e. reversed and inversed, so as to share a common area of permalloy. Consequently, magnetic domain walls (Neel walls) are formed at opposite and adjacent apexes of the unique pattern parallel to the easy axis after a predetermined magnetic field is applied along the hard axis of the array of geminous memory cells and then reduced to zero. In this way, the magnetization is properly aligned for use of the array of geminous memory cells as an enhanced nonvolatile random access memory element.
    Type: Grant
    Filed: June 20, 1983
    Date of Patent: October 9, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Leonard J. Schwee
  • Composite tungsten-steel armor penetrators
    Patent number: 4961383
    Abstract: An armor penetrating projectile having a matrix of iron or a steel alloy ch has a Rockwell C hardness of from about 40 to about 60 and a density of from about 99.5 to 100 percent, the matrix being reinforced with wires of a heavy metal such as tungsten, molybdenum, tantalum, or alloys of these metals.
    Type: Grant
    Filed: June 26, 1981
    Date of Patent: October 9, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Steven G. Fishman, Alexander G. Rozner, Raymond C. Wiley, William N. Wishard
  • Pyrophoric alloy complexes
    Patent number: 4960564
    Abstract: Alloy complexes which are composed of (1) lithium (Li, (2) Boron (B), and ) one or more of the following elements: sodium (Na), potassium (K), rubidium (Rb), and cesium (Ce). These alloy complexes in powder form react spontaneously with air upon contact to produce large amounts of heat.
    Type: Grant
    Filed: April 6, 1978
    Date of Patent: October 2, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Raymond A. Sutula, Frederick E. Wang
  • Method of soldering aluminum
    Patent number: 4958763
    Abstract: An aluminum or aluminum alloy surface is coated with molten AgNO.sub.3, the ilver nitrate is decomposed (at about 450.degree. C.-550.degree. C.) leaving a thin layer of silver metal, and then an inter-diffusion layer of silver and aluminum is formed (at about 570.degree. C.-660.degree. C.). The treated surface can be soldered by conventional means.
    Type: Grant
    Filed: August 29, 1989
    Date of Patent: September 25, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Amarnath P. Divecha, William A. Ferrando, Philip W. Hesse, Subhash D. Karmarkar
  • Versatile nonelectric dearmer
    Patent number: 4957027
    Abstract: A versatile, dearmer using small arms cartridges that is low cost, may be usable, and can employ various types of destructive projectiles including water, clay, shot and steel slugs. A novel feature is a shock tube firing circuit which, when combined in a multiple barrel embodiment, produces multiple projectiles with a high degree of firing simultaniety.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: September 18, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Christopher R. Cherry
  • Synthesis of hydroxylamine salts
    Patent number: 4956168
    Abstract: Hydroxylamine perchlorate or nitrate is prepared by forming an alcohol-hyxylamine solution from reacting a slurry of hydroxylamine sulfate in alcohol with ammonia, reacting perchloric acid or nitric acid therewith to form the desired salt, and separating the salt.
    Type: Grant
    Filed: January 28, 1983
    Date of Patent: September 11, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Kerry L. Wagaman
  • Shaped charge with explosively driven liquid follow through
    Patent number: 4955939
    Abstract: Disclosed is a non-fragmenting explosive device for perforating a target injecting a material through the perforation to disrupt structure behind the target. The device is particularly adapted to safely disarm unexploded explosive devices such as bombs without detonation of the bomb. The device includes an outer covering of explosive material for explosively confining the disruptive material to a well defined shape for total injection into the target.
    Type: Grant
    Filed: March 2, 1983
    Date of Patent: September 11, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: James A. Petrousky, Joseph E. Backofen, Donald J. Butz
  • Process of making thin film vector magnetometer
    Patent number: 4954216
    Abstract: A thin film vector magnetometer is configured to produce an output that varies linearly with the component of an externally applied magnetic field in the plane of a thin film chip portion thereof along a predefined sensitivity axis. The sensitivity and linear dynamic range of the thin film vector magnetometer are intimately related to each other through a bias field supplied by a bias magnet portion of the device. The bias field also defines the sensitivity axis of the magnetometer which is orthogonal to the unidirectional bias field applied by the bias magnet.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: September 4, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Paul Hunter, Leonard J. Schwee
  • Method for determining astronomic azimuth
    Patent number: 4954833
    Abstract: An improved method for fixing position of a land-based target site with respect to a reference site in the natural coordinate frame comprising the steps of determining geodetic azimuth between the target site and the reference target using Global Positioning System (GPS) satellites and relative positioning survey techniques; then calculating a relationship using gravity vertical deflections; and then coverting the geodetic azimuth to astronomic azimuth. This method has several advantages over conventional methods of targeting, including speed, the ability to work in all weather conditions, and improved accuracy.
    Type: Grant
    Filed: July 5, 1989
    Date of Patent: September 4, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Alan G. Evans, William L. Stein
  • Flexible mine case
    Patent number: 4953465
    Abstract: A mine has a flexible casing which can be fabricated in much the same way at a tubeless tire of modern construction is made. The mine case when uninflated is flexible and capable of being folded into a considerably smaller space than that occupied by a rigid case thus facilitating ease of shipment, but when loaded and inflated it is rigid. Being a collapsible vessel, however, the flexible mine case loses its identity as a straight cylindrical form when planted underwater, and becomes hard to distinguish from rocks, sponge, coral, or other bottom or sea growths.
    Type: Grant
    Filed: October 31, 1963
    Date of Patent: September 4, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Ralph E. Hightower
  • Liquid monopropellant gun
    Patent number: 4953440
    Abstract: A gun in which the interior wall of the breech portion of the bore is proed with a series of small annular combustion chambers distributed along the axis which are filled with liquid monopropellant to provide a propellant lined breech. Propellant is pumped into the annular combustion chambers through ports or fill orifices which communicate with an annular chamber surrounding the breech. This construction of the propellant in a series of small discrete volumes which eliminates the hydrodynamic instabilities associated with combustion of bulk loaded liquid propellants.
    Type: Grant
    Filed: November 26, 1975
    Date of Patent: September 4, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: William M. Moscrip
  • Synthesis of hydroxylamine salts
    Patent number: 4954328
    Abstract: Hydroxylamine perchlorate or nitrate is prepared by forming an alcohol-hyxylamine solution from reacting a slurry of hydroxylamine sulfate in alcohol with sodium alkoxide, reacting perchloric acid or nitric and therewith to form the desired salt, and separating the salt.
    Type: Grant
    Filed: January 28, 1983
    Date of Patent: September 4, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Kerry L. Wagaman
  • Stibine filter and antimonial lead acid batteries
    Patent number: H816
    Abstract: Stibine is removed from gases generated in antimonial lead-acid batteries by using a filter having carbon powder (especially activated charcoal) as the active agent.
    Type: Grant
    Filed: June 3, 1986
    Date of Patent: September 4, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: James H. Carder, Anh H. Le, Chester M. Dacres