Patents Represented by Attorney Saul Elbaum

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  • Coherently interruptible frequency hopped chirp generator
    Patent number: 5019825
    Abstract: A coherently interruptible frequency hopped chirp waveform generator has a ignal generating synthesizer and a chirp generator with digitally stored chirp samples in which both are phase locked to a reference clock and responsive to a timing and control circuit. The digitally stored chirp signal sample is D/A converted and mixed with a fixed frequency signal generated by the synthesizer forming translated chirp signals. The translated chirp signals are output, being controlled by a timing and control circuit so that a plurality of coherently interruptible and frequency selectable chirp sub-pulses are formed.
    Type: Grant
    Filed: November 24, 1989
    Date of Patent: May 28, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: John McCorkle
  • Spatial symmetry cueing image processing method and apparatus
    Patent number: 5020111
    Abstract: An optical correlation method and apparatus recognizes and locates specific patterns in a scene based on the spatial symmetries associated with that pattern. An input scene is divided into two identical scenes, one of which plays the role of the input scene and the other the role of the filter scene. The filter image is passed through a spatial operator before being sent, along with the input image, to a real-time correlator. The real-time output from the correlator is compared to the input scene. Bright spots or regions in the correlation image represent objects with symmetry. This technique does not depend on comparison of the received image with a standard or stored image, consequently, it overcomes the traditional handicap of sensitivity to both the aspect and range of the viewer.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: May 28, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Bruce A. Weber
  • Kinetic energy projectile with impact-ejected fins
    Patent number: 5014931
    Abstract: A kinetic energy projectile intended to be launched toward a selected tar has a projectile body and a plurality of fins attached to the projectile body to provide stablity thereto in flight. Means are provided for causing the fins to be ejected from the projectile body upon impact with the target and for retaining the fins on the body in flight. The latter includes a fin support structure fastened to the body and including a locking mechanism for releasably securing the fins thereto, the fins including fasteners arranged and adapted to cooperate with the locking mechanism in releasably securing the fins to the fin support structure. In the preferred embodiment, the locking mechanism includes a plurality of channels each having a closed end, and the fasteners are a plurality of pins fastened to the fins for insertion into the channels up to said closed ends thereof.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: May 14, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Ameer G. Mikhail
  • Binary munition system
    Patent number: 5014623
    Abstract: A binary munition system comprising at least two non-explosive ingredients hat combine in flight to form a relatively safe explosive. The combination of said non-explosive ingredients for the purpose of forming safe explosives is novel.The binary munition stores the non-explosive ingredients in separate compartments which utilize membranes, bags or containers to facilitate the separation. The munition is equipped with means in which to rupture the compartments upon launch or fire. The purpose of the munition is to maintain separation of the non-explosive ingredients and to achieve mixing of the ingredients upon launch or fire of said munition.
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: May 14, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Evan H. Walker, Warren W. Hillstrom
  • Fast response, high sensitivity manometric wind sensor
    Patent number: 5010771
    Abstract: A gas flow alternator cyclically connects a microphone to a dynamic flow ssure and then a reference static flow pressure. The microphone converts the pressures to a resultant alternating differential signal providing a first input to a phase-locked amplifier. A second amplifier input is derived from an optical pickup mounted within the housing. A readout connected in the circuit with the amplifier indicates the dynamic flow pressure.
    Type: Grant
    Filed: April 4, 1990
    Date of Patent: April 30, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Charles W. Bruce
  • Air distribution connector valve
    Patent number: 5009252
    Abstract: An air distribution connector valve mechanism includes a pair of mating cectors, each having a self-closing, one way valve arranged and adapted to interfere with the self-closing, one way valve of the other connector when the two connectors are coupled together, such that the two valves will then open for unrestricted passage of air therethrough. Each connector has a coupling mechanism for releasably coupling the two connectors together to cause the interference between them. Each of the valves includes a valve body, and a compression spring associated and aligned therewith, in a valve housing having an axis of symmetry within the associated connector. Each valve body is retained and slidable axially within the housing against the force exerted by the associated compression spring, the latter normally urging the valve body against an end wall of the housing to block an opening therein.
    Type: Grant
    Filed: May 3, 1990
    Date of Patent: April 23, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Jim A. Faughn
  • Cast single plate P900 armor
    Patent number: 5007326
    Abstract: A defensive applique armor for protecting a substrate which may be exposed o attack by projectiles. The armor comprises one or more cast metal plates of predetermined thickness which have slotted holes of various sizes and designs. The slotted holes are cast at obliquity.To the slotted, cast metal armor an optional thin, cast metal layer may be added. Said layer may be positioned either within or external to the cast armor plate.The invention encompasses both the armor and the process of making the same.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: April 16, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: William A. Gooch, Jr., Matthew S. Burkins, Leo F. Mills, James W. Ogilvy, Antonio J. Ricchiazzi
  • Micromechanical vibration sensor
    Patent number: 5001933
    Abstract: The bearing failure sensor includes a micromachined mechanical resonator h a conductive cantilevered beam mounted on a conventional insulating substrate to form a microchip. A conductive contact is mounted in close proximity to the free end of the conductive beam to form a gap. An integrated circuit is connected between the fixed end of the beam and the conductive contact. The microchip is mounted on a vibrating machine to be monitored. When vibrations having a given frequency and magnitude occur, the free end will vibrate and move sufficiently to close the gap completing a circuit and causing currents to flow that are detectable by the integrated circuit. Multiple resonators, having different gap sizes and natural resonant frequencies, may also be mounted on a single substrate to monitor vibrations at a plurality of different frequency and amplitude thresholds.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: March 26, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: John H. Brand
  • Aerodynamically compliant projectile nose
    Patent number: 4998994
    Abstract: A high velocity aerodynamic projectile having a central body with a forward nd, a rearward end and a longitudinal axis, the forward end of the body has a pedestal coaxially extending outward from the body. The projectile has aft stabilizing fins or a flare rigidly affixed at its rearward end and a forward stablizing means pivotably attached to the pedestal of the central body. The forward stabilizing means consists of a self-aligning projectile nose having its rearward end separated from the forward end of the projectile's central body so as to allow the self-aligning projectile nose to pivot and align with the oncoming air stream.
    Type: Grant
    Filed: September 20, 1989
    Date of Patent: March 12, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Edward M. Schmidt, William F. Donovan
  • Vortex flowmeter having an asymmetric center body
    Patent number: 4995269
    Abstract: A flow measuring apparatus having a flow tube with an asymmetrical blunt y rigidly mounted on at least one end in a stream of flowing fluid contained within the flow tube so as to form vortices downstream of said asymmetrical blunt body at low Reynolds numbers. A laminar proportional amplifier is used for amplifying the pressure variations caused by the vortices, either a microphone or a pressure transducer is used for converting the amplified pressure variations to an electrical output signal, and a signal conditioner and read out is used for converting the output signal into a rate of flow of the stream of flowing fluid.
    Type: Grant
    Filed: March 8, 1990
    Date of Patent: February 26, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: George Mon
  • Object detection using two channel active optical sensors
    Patent number: 4996430
    Abstract: An apparatus for detecting target objects which exhibit ratios of reflectance values that are substantially the same at two separated wavelengths when compared with background objects having reflectance values that are substantially different at the same two wavelengths has a two channel active optical sensor and logic circuitry. A first signal is transmitted at a wavelength lambda-1 which is different from a second signal which is transmitted at a wavelength lambda-2. The two signals are directed towards an object which reflects the signals therefrom. The reflected signals are received and a ratio is calculated. The ratio is compared with a predetermined threshold value to indicate when a target object has been identified.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: February 26, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Neelam Gupta
  • Flare simulator and test circuit
    Patent number: 4990889
    Abstract: A squib simulator and dispensing equipment tester has a threshold circuit d simulated load connected to a double-pole magnetically latching relay that switches contacts and turns on a test indicator lamp when the dispensing equipment delivers an input pulse of sufficient amplitude and duration. A power supply provides a logic level through a feedback circuit and the latching relay to the dispensing equipment indicating the status of the squib as either fired or faulted. A reset switch also uses the power supply to reset the latching relay for additional tests.
    Type: Grant
    Filed: May 10, 1989
    Date of Patent: February 5, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Robert A. Lebsock
  • Reactived armor improvement
    Patent number: 4981067
    Abstract: An apparatus for protecting a surface from a projectile having a series of eactive armor plates disposed substantially adjacent to one another and substantially covering the surface to be protected. The reactive armor plates each have an upper inert plate having a front planar surface and a back planar surface, a lower inert plate having a front planar surface and a back planar surface and a high explosive having a front planar surface and a back planar surface sandwiched between the upper inert plate and the lower inert plate. The upper inert plate has a plurality of holes between it's front planar surface and it's back planar surface and the lower inert plate also has a plurality of holes between it's front planar surface and it's back planar surface.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: January 1, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Charles N. Kingery
  • Variable cycle engine passive mechanism
    Patent number: 4978286
    Abstract: A mechanism for varying the cycle of a power plant comprising a turbine ene having a housing connected to the rotating spool of the turbine engine with a plurality of propeller blades slideably attached to the housing such that at maximum rotational speed of the turbine engine the blades are extended beyond the cowling of the engine providing external airflow. A nonlinear spring is used for causing the propeller blades to stow within the confines of the cowling of the engine at minimum rotational speed of the engine thus providing no external airflow.
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: December 18, 1990
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Francis X. Hurley
  • Broadband transmission line coupled antenna
    Patent number: 4970524
    Abstract: A broadband omnidirectional antenna has a monopole element driven by an rf source at one end and a load at its other end consisting of insulated parallel conductors tuned to different resonant frequencies. The parallel conductors are equidistantly spaced so that transmission line coupling occurs between adjacent conductors. The parallel conductors progressively decrease in length the further away each conductor is supported from the driven element. The antenna elements can be fabricated from attached insulated wires or ribbon cable and thus the antenna can have low weight, little bulk and great flexibility.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: November 13, 1990
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Russell J. Hens
  • Gyro control and monitor circuit
    Patent number: 4967123
    Abstract: An energizing and test circuit for a gyroscope spin motor which in addition o having a set of energizing coils, also includes a reference coil which generates a sinusoidal voltage whose frequency is a function of speed of rotation of the spin rotor. This signal is fed to a precision tachometer circuit whose output is compared with a desired speed signal for generating a voltage required to maintain a proper spin rate and comprises what is referred to as a "sustain" voltage. The sustain voltage is buffered and coupled to an external test point which can be monitored to determine the functional integrity of the gyro and more particularly the quality of its motor bearings. This sustain voltage is also coupled to drive amplifier circuit means which power the head coil assembly including drive windings of the spin motor. Circuitry is also provided for performing an automated spin-up and spin-down test.
    Type: Grant
    Filed: January 30, 1990
    Date of Patent: October 30, 1990
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Robert A. Lebsock
  • Acoustic detection system
    Patent number: 4964100
    Abstract: An acoustic detection device having a parabolic dish antenna for gathering ound waves and providing a first stage of amplification, an exponential horn located at the focus of the parabolic dish antenna for further acoustic amplification, a fluidic gainblock for a final stage of amplification, and acoustic earphones for listening. Either a hand operated latex bulb or a mechanical pump is used to pressurize a plastic fluid storage container that is used to supply fluid to the fluidic gainblock. Within the fluidic gainblock are four or more staged laminar proportional amplifiers having a bandwidth of 0 to 4,000 Hz.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: October 16, 1990
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Nassy Srour, Michael V. Scanlon
  • Continuous-fiber reinforcement sabot
    Patent number: 4958571
    Abstract: A sabot for an armor-piercing fin-stabilized discarding-sabot penetrator is rovided formed of continuous filaments wherein the sabot is preferably bucket shaped and the filaments are sufficiently long to be wrapped from the obturator rearward around the projectile base, and forward to the obturator on the opposite side of the sabot. The filaments are formed of glass, pyrolytic graphite or other high tensile strength light weight material. The sabot preferably has grooves to mesh with similar grooves on a penetrator body and some of the filaments are angled into at least a portion of said grooves.
    Type: Grant
    Filed: September 13, 1989
    Date of Patent: September 25, 1990
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Lawrence J. Puckett
  • Method for low frequency attenuation in fluidic amplification of acoustic signals
    Patent number: 4957132
    Abstract: A method for attenuation of low frequency acoustic sound in an acoustic dctor comprising the steps of collecting incoming sound waves in the frequency range of DC to 3000 Hz so as to provide an incoming signal S.sub.I, splitting the incoming signal into two signals S.sub.1 and S.sub.2 such that signal S.sub.1 travels through a one acoustic transmission tube a distance of L.sub.1 to the first control port of a fluidic laminar proportional amplifier and signal S.sub.2 travels through a second acoustic transmission tube a distance of L.sub.2 to the second control port of the fluidic laminar proportional amplifier, adjusting the L.sub.1 distance such that the phase of input signal S.sub.1 is shifted in relation to the phase of input signal S.sub.2 when input signals S.sub.1 and S.sub.2 arrive at the control ports of the laminar proportional amplifier.
    Type: Grant
    Filed: December 12, 1989
    Date of Patent: September 18, 1990
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Nassy Srour
  • Fiber optic link for detecting mechanical vibration in the presence of an electromagnetic field
    Patent number: H911
    Abstract: An apparatus for detecting mechanical vibration in the presence of an electromagnetic pulse, which is of particular use in the testing of land mines. An optical fiber link is provided between the device under test and a remote data collection station. A vibration sensor and optical transmitter are secured to the device under test, while an optical receiver and event latch are present at the other end of the fiber link at the data collection station.
    Type: Grant
    Filed: July 26, 1989
    Date of Patent: May 7, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: John E. B. Tuttle