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| Number | Title | Issue Date |
| 4207819 | Helicopter destroyer 1. A helicopter destructor comprising in combination, a hydrophone channel, a microphone channel, a barometer channel, an AND gate connected to the outputs of said hydrophone, microphone, and ometer channels, an explosive means, and means connected to the outputs ... | 06/17/1980 |
| 4207625 | Doppler compensator for heterodyne correlation devices 2. In a sonar communication system, a transceiver for receiving doppler sals, a local oscillator for producing a first output signal of given frequency, a translation resolver connected to said local oscillator for regulating said first output signal, a ... | 06/10/1980 |
| 4203164 | Secure sonar communication system A secure sonar communication system for transmitting and receiving intellnce signals within an aqueous medium comprising in combination means for generating an electrical pseudo random noise signal within a predetermined bandwidth, means connected to sai... | 05/13/1980 |
| 4201952 | Gas laser aerodynamic window The aerodynamic window is formed of a contiguous pair of gas jet streams driven at subsonic velocity across the entire cross-sectional area of an annular laser beam. One of the jet streams has a shear interface with the interior gas of the laser and has i... | 05/06/1980 |
| 4198703 | Submarine simulating sonar beacon 1. In a submarine simulation sonar beacon adapted for predetermined maneuing under water, a hull having a forward and an aft transducer for receiving an acoustical signal within said water, means disposed in said hull connected to said forward and aft tr... | 04/15/1980 |
| 4196401 | Method and apparatus for injecting gas into a laser cavity Laser gas injected into a multiple-pulsed electric discharge laser (EDL) must be removed as quickly as possible following each laser pulse. This `clearing time` can limit the average laser output power. Fast, efficient mass transport is needed and it, in ... | 04/01/1980 |
| 4194167 | Up-Doppler simulator 1. Means for up-Dopplerizing an input signal comprising in combination, means for generating a predetermined F frequency signal, means effectively connected to said predetermined F frequency signal geneing means for producing an F/10 frequency signal, an 8F/10 fre... | 03/18/1980 |
| 4194142 | Mode control apparatus for a separable-insert coaxial magnetron A standard demountable coaxial magnetron has a cathode and a surrounding de shell formed with slots through which electromagnetic energy is coupled into an external resonant stabilizing cavity. The anode and its associated components are contained in a v... | 03/18/1980 |
| 4189268 | Diver-controlled underwater linear milling machine A linear milling machine adapted to be carried and controlled by a diver nts a hog mill cutter on a frame which itself is secured to the work preferably by a hold-down suction cup arrangement. A driven feed-screw advances the cutter relative to the work.... | 02/19/1980 |
| 4188631 | Linkage apparatus for synchronizing aircraft door movements with the deployment of a door-enclosed antenna An extendable infra-red antenna is carried in a bay portion of the aircraft ormally closed by laterally-swinging, clam-shell doors. Separate, unconnected linkage assemblies driven by a common crank extend and retract both the doors and the antenna. When re... | 02/12/1980 |
| 4183088 | Random number generator 1. A generator for producing random binary bits comprising in combination, eans for producing a random noise electrical signal, means coupled to the output of said signal producing means for converting said random noise electrical signal into a variable wi... | 01/08/1980 |
| 4175380 | Low noise gas turbine At least two gas combustion tubes disposed in an end-to-end relationship provide an elongate combustion chamber closed at both ends. A fuel mixture admitted alternatively into each closed end is ignited for generating positive pressure pulses traveling fr... | 11/27/1979 |
| 4154532 | High precision optical alignment system An optical system such as an astronomical telescope must be carefully alid to assure that its optical axis is normal to its mounting or support surface. Alignment is achieved by forming circumferentially-spaced diffuse reflectors on the face of the vidic... | 05/15/1979 |
| 4154185 | Submersible apparatus for evacuating seawater from suction-type work-handling gripper members A light-walled portable casing, filled with a hydraulic fluid, contains a gh-pressure water pump driven by a hydraulic fluid-driven motor. An externally-carried, suction-type gripper member engages the work object. Pumping evacuated seawater from the enga... | 05/15/1979 |
| 4152934 | Vector measuring current meter The present meter is characterized by its very accurate cosine response to urrent vector components of fluid (air or water) velocity parallel to the rotational axes of its propeller-like flow sensors. Structurally, it employs two flow sensors rotatably mou... | 05/08/1979 |
| 4149318 | Apparatus for measuring the square footage output of diazo printing machines and the like Most Diazo printers and other such copy machines have an automatic feed capability provided by a drive roller for receiving light-sensitive paper from copy paper rolls of varying widths and feeding the paper into the machine. To provide a square footage c... | 04/17/1979 |
| 4140936 | Square and rectangular electroacoustic bender bar transducer The transducer's active elements are a plurality of thin, narrow, piezoelric bars bonded side-by-side to a flexible plate. Electrically, a circuit is coupled across the thickness of each bar or strip to include the bars as a plurality of parallel capacit... | 02/20/1979 |
| 4138660 | Automated flash-bang method and apparatus for determining lightning stroke distances Four microphones are disposed one at each corner of a square or rectangular onfiguration located near a base station from which the lightning distance is to be measured. A light detector also is located near the base station. When lightning occurs, the lig... | 02/06/1979 |
| 4137509 | Tunable laser based upon S2, Te2 and other selected dimers Lasing can be achieved by pumping a laser cell containing a vapor formed predominantly of Group VI dimers such as S2, Te2, Se2, TeO, TeSe, TeS and SeS, from a ground electronic state to a selected vibrational-rotational le... | 01/30/1979 |
| 4116153 | Elastic electrically-conductive strain cable The cable includes bundles of plastic-impregnated nylon fibers acting both s strain members and strain accumulators. An inner core bundle is wound with an electrical conductor that stretches with the fibers when the cable is tensioned. The winding pitch as... | 09/26/1978 |
| 4106875 | Explosively-separated tongue and groove joint A pair of structural members are coupled by a tongue and groove joint hav a groove half and a tongue half. To secure the joint, bolts extend transversely through aligned bolt holes and, on each side of the tongue half holes, are so-called `collapsing` sl... | 08/15/1978 |
| 4106206 | Positively expandable and retractable thread measuring gage The gage includes a cam follower formed of a plurality of radially expande segments each provided with a pair of inclined surfaces riding on a pair of cams carried by an elongate shaft reciprocably mounted in a suitable housing. When reciprocated in one ... | 08/15/1978 |
| 4104883 | Mass transport heat exchanger method and apparatus for use in ocean thermal energy exchange power plants Ocean thermal energy conversion (OTEC) uses a fluid, such as ammonia, hea by high-temperature surface water to provide a turbine-driving working gas. To condense the gas for re-use, a slurry of phase-transformation particles and cold ambient sea water is... | 08/08/1978 |
| 4105177 | Breakaway link assembly for maintaining a structural alignment of shock-sensitive equipment The reliability of electronic navigational equipment, such as missile guice sets, frequently requires a precisely-aligned support or mounting which must be rigidly maintained during the missile operation or flight. To maintain the alignment, the housing ... | 08/08/1978 |
| 4104607 | Zero temperature coefficient of resistance bi-film resistor A first thin-film resistor member, preferably TaN, is disposed over a sec thin film member, such as NiCr, to completely cover the second member and act as a passivating layer preventing anodization of the second. The thin-film materials used for the firs... | 08/01/1978 |
| 4104719 | Multi-access memory module for data processing systems Memory apparatus for use in a data processing system and which includes in ts entirety a number of multi-access modules each formed of a plurality of data bit cells. Each module is accessed through multiple independent channels and each channel is capable ... | 08/01/1978 |
| 4079316 | Sliding tone command receiver system The system employs a sliding tone FM signal to command a remote device such s a balloon; for example, to fire a squib for balloon release. The tone is a slowly-changing, progressively-increasing signal received and detected by discriminator circuitry for a... | 03/14/1978 |
| 4071705 | Quantized non-synchronous clipped speech multi-channel coded communication system 1. A quantized nonsynchronous clipped speech multi-channel coded communicons network comprising a multiplicity of transmitter terminals and receiver terminals; each of said transmitter terminals comprising a multiplicity of audio processing sections, inc... | 01/31/1978 |
| 4071826 | Clipped speech channel coded communication system 9. A clipped speech channel coded communication receiver comprising: input eans for receiving radiated energy containing trains of pulses therein; channel decoder means operatively connected to said input means and comprising means for receiving said train... | 01/31/1978 |
| 4070550 | Quantized pulse modulated nonsynchronous clipped speech multi-channel coded communication system 1. A quantized pulse-modulated nonsynchronous clipped speech multi-channel oded communication system comprising transmitter terminals and receiver terminals; said transmitter terminals comprising a plurality of channel units, a timing unit, and a transmitt... | 01/24/1978 |
| 4069794 | Positive power control internal combustion engine The two-stroke engine has a piston mounted in a cylinder having a full diameter bore throughout its major length and a reduced diameter upper bore portion. The piston has the same configuration and in its upward compression stroke, air and finely-divided ... | 01/24/1978 |
| 4062883 | Polymer-bound metallocarborane catalyst product and process A heterogeneous metallocarborane catalyst bound to a polymeric support by a carbon-boron bond. Chloromethylated polystyrene beads provide the support. The catalytic beads are characterized as 3,3-(Ph P)-3-H-4 polystyrylmethyl - 3,1,2-Rh C2 B9 | 12/13/1977 |
| 4052943 | Coating composition and method for improving propellant tear strength A typical rocket motor includes a motor casing containing a cast propellant onded to the casing and provided with a port through which combustion gases are delivered to the motor nozzle. During storage and operation, mechanical stresses in the propellant m... | 10/11/1977 |
| 4053081 | Reinforced filament-wound cut-port pressure vessel and method of making same The fabricated pressure vessel is a filament wound structure having a connt winding angle assuring maximum filament utilization efficiency and also having polar end openings of different sizes. Fabrication of the vessel includes a first step of forming a... | 10/11/1977 |
| 4043850 | Polymeric-coated HMX crystals for use with propellant materials The adhesion of HMX crystals to the binder of a propellant material is sificantly improved by providing a polymeric polyurethane coating. The HMX crystals are tumbled in benzene to which is added a dilute solution of poly-aryl phenylisocyanate in methyle... | 08/23/1977 |
| 4043044 | Surface-following cartridge for use with linear measurement transducer systems Presently available transducer systems provide analog electrical outputs portional to the linear displacement of an active element from the surface being measured. However, use requires that all or part of the surface be conductive. The present cartridge... | 08/23/1977 |
| 4041446 | Capacitive-type displacement and pressure sensitive transducer The transducer functions as a capacitor to sense variations in inter-plate istances produced either by transducer displacement or by pressure. The capacitor plates include flexible rubber sheathing members having interior conductive surfaces spaced slightl... | 08/09/1977 |
| 4037470 | Method and apparatus for measuring high energy laser beam power A hollow spherical casing is provided with an inlet opening for admitting e full intensity of the laser beam. A primary substrate formed of a bank of small tubes is mounted in the sphere to intercept the beam. The tubes partially reflect the beam and also... | 07/26/1977 |
| 4026213 | Selectively aimable warhead The cylindrical warhead has an outer, relatively-thin metal skin member and n inner thicker metal casing, the main explosive charge being disposed in the space between the members with associated boosters or charge initiators. The initiators include a firs... | 05/31/1977 |
| 4025913 | Electrical field sensing and transmitting apparatus A pair of conductive spherical shells are carried by a balloon or other means into an electrical field which induces equal and opposite charges on the shells. Rotation of the shells causes the charges to alternate. The alternating sinusoidal charge is app... | 05/24/1977 |
