Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 6490143 | Blocking circuit for high voltage spike testing An apparatus to provide spike conduction and power supply isolation that is effective for a 60 Hz power supply operating frequency. The power frequency blocking circuit is practically implemented for a 60 Hz power supply operating frequency. The power fre... | 12/03/2002 |
| 6475008 | Underwater mateable electrical connector with anti-hydrolock feature An electrical connector includes a plug section having a body, and a receptacle section which is connected to the plug section. A collapsible seal is disposed within a circumferential groove formed in the plug section. The receptacle section has a cylindr... | 11/05/2002 |
| 6465124 | Magnesium anode, seawater/acid/catholyte electrolyte utilizing a palladium and iridium carbon paper cathode electrochemical system The present invention relates to an improved magnesium semi-fuel cell which has a magnesium anode, a seawater/catholyte electrolyte, preferably containing acid to solubilize solid precipitates, and an electrocatalyst composed of palladium and iridium cata... | 10/15/2002 |
| 6433730 | Noise riding threshold control with immunity to signals with high pulse repetition frequencies and high duty cycles A system and method is disclosed for a radar receiver, such as a wideband crystal video early warning receiver, to automatically detect the noise level of the radar receiver with immunity to high pulse repetition frequencies and high duty cycle signals. T... | 08/13/2002 |
| 6430107 | Computerized auditory scene analysis particularly suited for undersea applications A digital signal processor is disclosed for analyzing sound signals to determine the identification of the sound and the location of the source of the sound, as well as to present its results as an auditory scene. The processing includes producing a gram ... | 08/06/2002 |
| 6422506 | Towed airborne array system A towed airborne array system has a balloon that supports appropriate instrumentation packages overhead and is tethered to a towing ship to improve line-of-sight sensing and communication capabilities to up to about 100 nautical miles. These improved capa... | 07/23/2002 |
| 6415211 | Weapon and launcher test set (WALT) A portable data acquisition system for use in certifying torpedo tube-launched weapons such as a Mark 48/ADCAP, a Tomahawk missile or a Harpoon and the like. The system includes a portable computer, a rugged four slot chassis, a 32 channel multiplexing mo... | 07/02/2002 |
| 6411566 | System and method for processing an underwater acoustic signal by identifying nonlinearity in the underwater acoustic signal A nonlinear signal processing system and method is used to identify nonlinearity (e.g., chaos) in underwater acoustic signals, such as sonar signals. The system and method detects the underwater acoustic signal and digitizes the underwater acoustic signal... | 06/25/2002 |
| 6407720 | Capacitively loaded quadrifilar helix antenna A quadrifilar helix antenna is provided having a feedpoint for the antenna connecting to individual helical antenna elements. Each antenna element comprises a normal helix element with a plurality of series capacitors inserted along the element length wit... | 06/18/2002 |
| 6404701 | Encapsulated volumetric acoustic array in the shape of a towed body An encapsulation assembly includes a housing having a nose end, a tail end, and a body portion between the nose end and the tail end. A plurality of acoustic transducers are positioned within the body portion of the housing, each of the plurality of acous... | 06/11/2002 |
| 6397234 | System and apparatus for the detection of randomness in time series distributions made up of sparse data sets A method and apparatus are provided for automatically characterizing the spatial arrangement among the data points of a time series distribution in a data processing system wherein the classification of said time series distribution is required. The metho... | 05/28/2002 |
| 6386907 | Battery clamp An improved automotive battery jumper cable includes an electrically conductive cable which is terminated at each end by a terminal clamp. Each of the terminal clamps includes a pair of gripping members each having a jaw end and a handle end. The gripping... | 05/14/2002 |
| 6388948 | Method and system for determining underwater effective sound velocity A method and system for determining the effective sound velocity between a source of sound energy located at an initial depth ZS and an actual target located at another depth. A system utilizing a device such as a computer or microprocessor is ... | 05/14/2002 |
| 6385130 | Dual channel switch with frequency band limiting An acoustic switch, having a predetermined frequency response, is disclosed that allows for a single channel device to be interconnected to multiple transducers. The acoustic switch ensures that the signals from the transducer closest to transmitter, whic... | 05/07/2002 |
| 6382072 | Support and alignment assembly A support and alignment assembly for use on a moving vehicle having a fixed receiver mounted thereon. The assembly comprises a support assembly including (i) a loading tray for supporting a missile, (ii) a storage structure for supporting the loading tray... | 05/07/2002 |
| 6371247 | Lift assembly A lift assembly includes first and second elevator structures, each including a first scissors section, a second scissors section pivotally connected to the first scissors section and supporting a lift shaft which extends between the first and second stru... | 04/16/2002 |
| 6370740 | Mechanical clamp for cylindrical objects A clamp for cylindrical objects uses a plurality of split-rings, each of which has a first half-ring and a second half-ring. Each first half-ring is hingedly coupled to a corresponding second half-ring at a hinge point. Means, coupled to each first half-r... | 04/16/2002 |
| 6370085 | Extendable hull-mounted sonar system A system to extend transducer arrays from the hull of a vessel while it is underway provides for increased array gain, volumetric aperture (very large aperture arrays), and rejection of hull-bound noise for submarines, surface ships, weapons, and unmanned... | 04/09/2002 |
| 6370083 | Method and apparatus for detecting acoustic signals from a plurality of acoustic signal sensors An apparatus and method for detecting acoustic signals from a plurality of acoustic signal sensors. The apparatus comprises a plurality of acoustic signal detection channels. Each channel has an input for receiving acoustic signals from a corresponding ac... | 04/09/2002 |
| 6369477 | Roller-type electric motor A roller-type electric motor includes a housing having a hollow interior and an inner wall. A plurality of stator poles each of predetermined magnetic polarity are positioned at the inner wall of the housing, and a roller having an outer surface is positi... | 04/09/2002 |
| 6370084 | Acoustic vector sensor An acoustic vector sensor for monitoring acoustic energy underwater includes an acoustic sensing tri-axial accelerometer, a body of syntactic foam encasing the accelerometer, a body of viscoelastic rubber encasing the body of syntactic foam, and a rigid p... | 04/09/2002 |
| 6364986 | High-strength parts formed using stereolithography High-strength parts are produced by first performing a stereolithography part generation process to create a polymer part having opposing interior surfaces. An uncured strength material is interposed between the opposing interior surfaces of the polymer p... | 04/02/2002 |
| 6356816 | Method and apparatus for reducing drag in marine vessels A system is disclosed that applies non-linear signal processing methods derived from theories of information and non-linear oscillations (chaos) to control the turbulent boundary layer of marine vessels in order to reduce the drag to which the vessels enc... | 03/12/2002 |
| 6356600 | Non-parametric adaptive power law detector A system for detecting unknown broadband signals in noise consisting of non-stationary narrowband components and a stationary colored broadband component includes a sensor which collects data in which a signal of interest may be found and generates a rece... | 03/12/2002 |
| 6346810 | Electric motor control using temperature and magnetic field strength variation of its stator liminations A sensor for facilitating the measurement of temperature and magnetic field is described. The sensor comprises an optical cable having a distal end encompassed in a sheath of giant magnetoresistive material. Temperature changes alter the spectrum emissivi... | 02/12/2002 |
| 6344834 | Low angle, high angle quadrifilar helix antenna An antenna is provided that can switch from generating a low radiation angle to a high radiation angle. The antenna comprises a quadrifilar helix antenna in which the helical antenna elements have a first pitch at one end of the antenna and a second pitch... | 02/05/2002 |
| 6330866 | Missile support and alignment assembly A missile support and alignment assembly for use on a moving vehicle having a fixed missile launch tube mounted thereon. The assembly comprises a missile support assembly including (i) a loading tray for supporting a missile, (ii) a storage structure for ... | 12/18/2001 |
| 6314349 | Landmass fly-around boundary generation A process for generating fly-around boundaries for use by projectiles such as missiles or the like which facilitates the steps of providing original cartographic data representative of at least one geographical position on a landmass and providing a prede... | 11/06/2001 |
| 6305263 | Appended pod underwater gun mount An appended pod underwater gun mount for a submersible host vessel includes a strut member having a base end fixed to an outer hull of the submersible host vessel and a distal end protruding outwardly from the host vessel, the distal end being angled with... | 10/23/2001 |
| 6304885 | Digital data retrieving, organizing and display system A digital data retrieving, organizing and display device for retrieving information from a number of disparate sources relating to development of a complex system including firmware, hardware and software and organizing and displaying on cards the informa... | 10/16/2001 |
| 6298012 | Doubly resonant push-pull flextensional The present invention relates to a flextensional transducer device comprising a multi-resonant shell and push-pull driving system for driving the shell so as to provide at least two tunable resonant modes, thereby increasing the operational bandwidth of t... | 10/02/2001 |
| 6285631 | Slotted cylinder transducer with sealing boot and method of making same A sealed slotted cylinder includes an active transducer assembly, end caps at each end of the assembly, and a boot fused to the end caps and sealing the assembly. The sealed slotted cylinder is made using a dummy insert and a spacer within the dummy inser... | 09/04/2001 |
| 6262574 | Sensor for measuring magnetic field strength and temperature for an electric motor A sensor for facilitating the measurement of temperature and magnetic field is described. The sensor comprises an optical cable having a distal end encompassed in a sheath of giant magnetoresistive material. Temperature changes alter the spectrum emissivi... | 07/17/2001 |
| 6259974 | Automated ballistic constant determination A method for the automated generation of ballistic constants for use in a trajectory control system. The potential trajectory of a pursuing vehicle is divided into a plurality of multiple sequential phases wherein each phase is characterized by a pluralit... | 07/10/2001 |
| 6249762 | Method for separation of data into narrowband and broadband time series components A method for separation of acoustical data into narrowband and broadband time series components includes the steps of: constructing a data matrix in which time series samples of acoustical data are arranged in a forward-backward linear predictor matrix; d... | 06/19/2001 |
| 6229761 | Estimating ship velocity through the water and over the ground A method and system are provided to estimate a ship's velocity. Two ship sonar returns from two different directions are selected. Each return includes volume reverberation data and bottom reverberation data. Doppler shift for each of the two returns base... | 05/08/2001 |
| 6218994 | Small antennas for communication over sea ice The invention described herein relates to an antenna system which makes use of the waveguide properties of sea ice. The antenna system broadly includes at least one antenna wire extending along and preferably in contact with a sea ice surface for transmit... | 04/17/2001 |
| 6199471 | Method and system for determining the probable location of a contact The present invention relates to a method and a system for determining a weapon firing strategy for an evading target. The method of the present invention comprises the steps of sensing the motion of the target, analyzing the motion of the target, providi... | 03/13/2001 |
| 6195057 | Submarine antenna assembly for deployment through ice layer A submarine antenna assembly comprises a tubular body having a removable end cap, a mast stowable in the body and extendible therefrom and having elements mounted thereon, a penetrator stowable in the body and movable therefrom by the mast upon removal of... | 02/27/2001 |
| 6164230 | Passive system for mitigation of thruster wake deficit A marine vehicle having enhanced maneuverability, which has a hull at least partially submerged in water. The vehicle has a forward bow, a longitudl axis extending rearwardly from said bow and opposed first and second sides. The first and second sides h... | 12/26/2000 |
