Patents Represented by Attorney, Agent or Law Firm Jacob Shuster
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Patent number: 5341056Abstract: A plurality of drive modules positioned at spaced locations along a drive th of a driven member respectively include two magnetostrictive rod elements in alignment with each other, with adjacent ends thereof in engagement with a third magnetostrictive rod element extending transversely of the drive path to engage the driven member. Simultaneous elongation and contraction of the two rod elements during elongation of the third rod element in the drive modules imparts unidirectional motion to the driven member.Type: GrantFiled: January 18, 1991Date of Patent: August 23, 1994Assignee: The United States of America as represented the Secretary of the NavyInventor: Bruce S. Maccabee
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Patent number: 5337803Abstract: The article is produced by prepositioning nonwoven reinforcement made of a etallic mesh to which ceramic tiles are wired inside of a centrifugal casting mold. Molten matrix metal is then introduced into the mold while being rotated about an axis parallel to the inflow path of the molten metal until it completely encapsulates the reinforcement.Type: GrantFiled: May 25, 1993Date of Patent: August 16, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventors: Amarnath P. Divecha, Subhash D. Karmarkar, William A. Ferrando, Scott M. Hoover
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Patent number: 5328853Abstract: Photoconductive semiconductor material is injected into narrow and closely paced cylindrical channels in an insulating matrix plate to form pixel elements of a high resolution photodetector array. A transparent conductive layer is deposited on one surface of the photoconductor array while light reflecting pads are formed on the elements at the opposite surface. Subsequently, a layer of light modulating material and a transparent conductive layer are deposited on the opposite surface to obtain a high resolution spatial light modulator.Type: GrantFiled: June 18, 1993Date of Patent: July 12, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventors: Carmen I. Huber, Tito E. Huber, Tak-Kin Chu, Nicholas Caviris
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Patent number: 5328129Abstract: A method is provided for guiding an in-flight vehicle having course divert apability toward an intercept with a target. Using a sensing device mounted on the vehicle, target data is acquired to establish a relative position vector between the vehicle and the target. A trajectory course for the vehicle is selected such that it is offset from a collision course with the target. The offset is defined within in a target impact plane perpendicular to the relative position vector. The total thrust of the vehicle associated with its course divert capability is directionally controlled through first and second orthogonal components. To reduce offset the second component is directed to cause the trajectory of the vehicle to spiral around the relative position vector.Type: GrantFiled: June 17, 1993Date of Patent: July 12, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventor: Roger L. Gray
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Patent number: 5327810Abstract: A universal receiver having a pneumatic safe/arm/firing mechanism is provd. The receiver comprises a receiver shell with a threaded barrel clampnut on one end and a threaded breech plug assembly on the opposite end. The breech plug assembly includes a cocking and striker piece and a pneumatically-operated sear. A separate pneumatically-operated safety bar interlocks with the cocking and striker piece to prevent inadvertent firing. A multi-port pneumatic valve is connected to sequentially operate the safety bar retractor followed by the sear retraction, thereby firing the gun.Type: GrantFiled: December 3, 1993Date of Patent: July 12, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventors: Harold W. Sandusky, John M. Kelley
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Patent number: 5327316Abstract: Metal oxide varistors are connected in parallel with grounded capacitors to oad outlet terminals coupled to a power source through inductor coils forming a low pass filter with the capacitors to delay propagation of a voltage increasing transient pulse to the power source until ground shunting paths of low resistance are developed in the varistors. Electromagnetic shielding partitions the inductor from the capacitors and varistors within a power outlet box mounting the load outlet terminals to prevent interference with absorption of transient energy by the varistors during the delay in establishing the ground shunting paths.Type: GrantFiled: October 9, 1990Date of Patent: July 5, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventor: Yung K. Yi
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Patent number: 5325098Abstract: A filtering system used in the tracking of a maneuvering target is provid A first filter estimates a partial system state at a time k in terms of target position measurements. A plurality of second filters are each provided with an acceleration model hypothesis from a prior time (k-1) free of position and velocity constraints. Each second filter generates an acceleration estimate at time k and a likelihood at time k that the acceleration model hypothesis is correct. The likelihoods from the second filters are summed to generate a probability vector at time k. A third interaction mixing filter generates the acceleration model hypotheses from prior time (k-1) using the probability vector from prior time (k-1) and the acceleration estimates from prior time (k-1). The third filter also provides an error covariance to the first filter to reflect the uncertainty in the acceleration model hypotheses from prior time (k-1).Type: GrantFiled: June 1, 1993Date of Patent: June 28, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventors: William D. Blair, Gregory A. Watson, Theodore R. Rice
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Patent number: 5315881Abstract: Magnetostrictive wire having a low surface-to-volume ratio established by a onstant non-planar cross-section, is helically deformed into contact with a shaft under a stress maintaining the wire in fixed relation to the shaft surface. Magnetic anisotropy is imparted to the wire by twist thereof about its cross-sectional axis while the wire is being helically deformed into contact with the shaft surface to form a torque sensor through which accurate torque detection is achieved.Type: GrantFiled: October 23, 1992Date of Patent: May 31, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventors: Howard T. Savage, Arthur E. Clark, Marilyn Wun-Fogle, Lawrence T. Kabacoff, Antonio Hernando, Bruce Beihoff
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Patent number: 5297227Abstract: A disengagable adapter for mechanically coupling optical fibers is provid The disengagable adapter separates into two complementary receptacle parts. Each receptacle part receives through a bore a single optical-fiber located within an optical-fiber connector plug. Each receptacle part attaches to and securely holds a different connector plug. The receptacle parts mate with each other in a complementary fashion and thereby connect the two optical fiber connector plugs together. These connector plugs accordingly align the two optical fibers located within the plugs. The optical fibers can be separated either by demating the complementary parts or by disconnecting one side of the adapter from its connector plug. Mounting the complementary parts to a plate facilitates multiple, simultaneous connections.Type: GrantFiled: March 18, 1993Date of Patent: March 22, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventors: Gair D. Brown, Michael A. Richardson, Gary A. Burcham
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Patent number: 5295528Abstract: A reinforcement made of a composite material is positioned inside of a ceifugal casting mold. Molten matrix metal is then introduced into the mold while being rotated about its longitudinal axis until the molten metal completely encapsulates the reinforcement.Type: GrantFiled: May 17, 1991Date of Patent: March 22, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventors: Amarnath P. Diyecha, Subhash D. Karmarkar, William A. Ferrando, Scott M. Hoover
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Patent number: 5294936Abstract: A radar sector blanker comprises an analog-to-digital converter and a sec controller unit. The analog-to-digital converter receives the analog synchro voltages describing the positioning of a radar antenna and changes these voltages into binary-coded decimal (BCD) information. The sector controller unit comprises a portable housing, a controller system, and a power supply. The controller system includes an OFF comparator circuit, an ON comparator circuit, an S-R latch, and a solid-state switch. Each comparator circuit comprises three cascaded transistor-transistor logic (TTL) integrated chips. The power supply gives a direct-current voltage to the solid-state switch and the TTL chips. The sector blanker blocks transmission for a pre-determined rotational region or sector of a radar system.Type: GrantFiled: June 7, 1993Date of Patent: March 15, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventor: Roger B. Hall
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Patent number: 5289304Abstract: Two-dimensional optical data is transferred at a variable rate through an tical delay module formed by spatial light modulators of the ferroelectric liquid crystal type interconnected in series for data transmission by a beam splitter through which laser radiation is introduced. Operation of the light modulators is controllably interrelated to control the variable delayed transfer rate of the module.Type: GrantFiled: March 24, 1993Date of Patent: February 22, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventor: Sonlinh Phuvan
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Patent number: 5283530Abstract: A bore formed within a body of material storing a magnetic field at a sattion level, establishes a linear path along which an electron beam is focussed after the bore is ionized to form a plasma channel therein. The driving current of the beam is sharply decreased to cause simultaneous decay of the stored magnetic field from a saturation level inducing an electric field concentrated in the plasma channel to accelerate travel of trailing electrons in the beam with a high accelerating gradient.Type: GrantFiled: September 12, 1991Date of Patent: February 1, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventor: Han S. Uhm
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Patent number: 5280287Abstract: An Identification Friend or Foe (IFF) method and system are provided to dct i) friendly ground-based vehicles, ii) each of the vehicle's unique identity, and iii) each of the vehicle's approximate position. A video image of an area of interest on the ground is generated from an aircraft. The video image is defined by a matrix of pixels. A range from the aircraft to a reference position within the area of interest is provided. The reference position is defined by known latitude, longitude and height within the area of interest and is further defined in the matrix of pixels by matrix coordinates. A coded signal is transmitted from a vehicle on the ground to uniquely identify the vehicle and identify the vehicle as friendly. The coded signal is also detectable as part of the video image when the coded signal is transmitted from the area of interest. The vehicle position within the area of interest is thus defined in the matrix of pixels by matrix coordinates.Type: GrantFiled: June 30, 1992Date of Patent: January 18, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventor: Alan G. Evans
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Patent number: 5280335Abstract: A system for testing a fiber-optic component with infrared radiation is provided. The testing system has a source of infrared radiation, an optic coupler, a detecting circuit, and an analog tape recorder. The optic coupler directs the infrared radiation onto the fiber-optic component. The detection circuit is electrically connected to the tape recorder. The detection circuit has an amplifier, a potentiometer connected in parallel to the amplifier, and a photoelectric transducer connected in series to the amplifier. These components are mounted on a non-conductive board. A power source supplies voltage and is connected to the amplifier. The circuit operates by having the photoelectric transducer sense the infrared radiation emitted from the tested fiber-optic component and convert the radiation into an electrical signal. The amplifier then amplifies the electrical signal to the voltage necessary for driving the tape recorder.Type: GrantFiled: May 26, 1992Date of Patent: January 18, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventor: Francis L. Needham
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Patent number: 5278966Abstract: The toroidal computer memory system utilizes toroidal memory paths in its chitecture to enable memory locations along those paths to be obtained in a single access, as compared to multiple accesses typically required by conventional linear computer memory. The storage/retrievable media is designed to replicate paths on the surface of a torus. By defining certain parameters and the mathematical properties of these memory paths in the electronics of a controller, points on the memory paths can be accessed from the storage/retrieval media more efficiently than conventional computer memory.Type: GrantFiled: June 29, 1990Date of Patent: January 11, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventors: Allen D. Parks, James C. Perry
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Patent number: 5276319Abstract: An advanced infrared (IR) Sensor based on the present invention would add the following two elements to a basic staring IR sensor using a 2 dimensional array of detector elements to significantly enhance the detection sensitivity of the device. The added features are: (1) Additional optics or modification to the normal optics to scan the image over a small fraction of the array dimensions so that each point in the image is sampled by a number of different detector elements, and (2) signal processing to combine the multiple samples for each image point so as to exclude the effects of "dead", "weak" or excessively noisy detector elements and average out the element to element sensitivity variations and calibration/correction imperfections of the "normal" elements.Type: GrantFiled: April 21, 1992Date of Patent: January 4, 1994Assignee: The United States of America as represented by the United States Secretary of the NavyInventors: Kenneth C. Hepfer, S. Roger Horman, Bob Horsch
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Patent number: 5271332Abstract: The detonation wave velocity in a solid explosive body of material, incred by the "channel effect", is further increased by compounding of the "channel effect" and/or by partial shock wave interruption by means of a threaded or rifled passage wall surface in a continuous, open channel arrangement. The high velocity detonation wave can be used to increase the jet velocity of shaped charges.Type: GrantFiled: October 2, 1992Date of Patent: December 21, 1993Assignee: The United States of America as represented by the Secretary of the NavyInventor: Raafat H. Guirguis
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Patent number: 5271328Abstract: A field coil stator of an electrical generator is fixed to the fuse body of n explosive projectile within which the rotor of the generator is supported for limited rotation dampened by a pendulum to effectively induce an electrical output from the stator field coils during and after launch of the projectile from an internally rifled gun barrel. The rotor is rotationally isolated from the stator during launch by shock absorbing means to avoid defeat of the pendulum dampening action on the rotor.Type: GrantFiled: January 22, 1993Date of Patent: December 21, 1993Assignee: The United States of America as represented by the Secretary of the NavyInventors: Kevin Boulais, Wayne L. Hopkins
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Patent number: 5267513Abstract: An explosive round is formed by a bundle of fibers made of explosive matel held in peripheral contact with each other within an outer casing. Axially extending channel passages thereby extend between the fibers to conduct shock waves periodically impacting explosive blockage plugs in order to generate auxiliary detonation waves in forward and reverse directions. The auxiliary waves propagated in the reverse direction collide with the original detonation wave in the fibers between the blockage plugs at the locations of axial gaps between the fiber segments so as to reduce peak pressure oscillation.Type: GrantFiled: October 2, 1992Date of Patent: December 7, 1993Assignee: The United States of America as represented by the Secretary of the NavyInventors: Raafat H. Guirguis, Kibong Kim