Patents Represented by Attorney Arthur A. McGill
  • Patent number: 4893543
    Abstract: A braiding mandrel for use in making cable grips and strain relief assemblies is described. The mandrel has a rod along its axis. Enclosing the rod, along its length, are hook-ring elements separated by cylindrical spacers. The hook-ring elements are flat rings with prongs extending outward. The prongs are bent upward to form hooks on which wire is wrapped to form the cable grips and strain relief assemblies.
    Type: Grant
    Filed: July 5, 1989
    Date of Patent: January 16, 1990
    Inventor: Raymond J. Phillips
  • Patent number: 4890917
    Abstract: A small angle generating apparatus is described for deviating optical beams y accurately measurable small angles to calibrate autocollimators or the like. It includes a double mirror combination which is mounted on an elongated mechanical beam which is rotatable about a pivot at one end of the beam by means of a micrometer coupled at the opposite end thereof. Rotation of the double mirror combination deviates a beam of light from a test autocollimator from its original position either horizontally or vertically through a small angle which is linearly proportional to the angular rotation of the mechanical beam.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: January 2, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Robert J. Magee, Jian P. Marchi
  • Patent number: 4886163
    Abstract: A container for holding circuit cards within a plastic, static dissipative nclosure. The container has a handle and is sturdy enough for carrying as a suitcase. The design can be varied so that various circuit card sizes and shapes can be accommodated. The container is suitable for stacking with another like container. Detachable slides are affixed to the container for mounting in a cabinet.
    Type: Grant
    Filed: April 21, 1989
    Date of Patent: December 12, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Nelson M. Hubbell, Susan L. Murdock, Ernest P. Romano
  • Patent number: 4874326
    Abstract: A plug-receptacle type electrical connector in combination with a thin, cular, elastomeric membrane joining a plurality of cylindrical elastomeric embossments formed as an integral part thereof. Each embossment further has conical ends at each extremity and an outside diameter slightly larger than the receptacle socket cavity it will contact. Each embossment also has a longitudinal through-hole of inside diameter (ID) slightly smaller than the electrical connector plug pin it is intended to fit over. The membrane is coated with a dielectric grease and slipped over the plug pins. Connector clamping force produce hydrostatic forces, first on each embossment which causes water remaining between the pin and the embossment ID and then pin-to-pin to be broken into a discontinuous series of microspheres. The resulting discontinuity produces full electrical isolation for the assembled pins and sockets and pin-to-pin for the mated connector. Total refurbishment of a connector may thus be accomplished in situ.
    Type: Grant
    Filed: September 20, 1988
    Date of Patent: October 17, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Victor J. Marolda, Jr.
  • Patent number: 4869149
    Abstract: A stabilizing system for use in conjunction with a crane/boom in which an ject is held fast to a foam cushion within the system. A hook that forms part of the system grasps a sling holding the object and secures the object against the foam cushion. The object can be aligned by being rotated or tilted while held fast to the cushion. The object is prevented from swinging and swaying, thereby greatly reducing danger.
    Type: Grant
    Filed: October 6, 1988
    Date of Patent: September 26, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Robert D. Cavanagh, Paul E. Nelson
  • Patent number: 4864567
    Abstract: A multiline modem system provides to a computer connection a plurality of lephone lines for transmitting and receiving digital computer data at throughput rates that exceed those of single line modem systems. The system determines the number of available telephone lines, sequences through a series of telephone re-dials, and acknowledges all connections. When the last connection is verified, the system is on-line and data transfer can begin. The system described uses state-of-the-art components and meets FCC Part 68 requirements for connection to the switched telephone network.
    Type: Grant
    Filed: May 4, 1988
    Date of Patent: September 5, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Paul J. Giorgio
  • Patent number: 4862456
    Abstract: A multiline modem system provides to a computer connection a plurality of lephone lines for transmitting and receiving digital computer data at throughput rates that exceed those of single line modem systems. The system determines the number of available telephone lines, sequences through a series of telephone re-dials, and acknowledges all connections. When the last connection is verified, the system is on-line and data transfer can begin. The system described uses state-of-the-art components and meets FCC Part 68 requirements for connection to the switched telephone network.
    Type: Grant
    Filed: May 4, 1988
    Date of Patent: August 29, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Paul J. Giorgio
  • Patent number: 4860013
    Abstract: An RF multiplexer divides an incoming signal from an RF antenna into disce frequency bands. Each frequency band has its own separate circuit on separate lines to operate on the frequency band and determine if a radar signal is present or if only noise is present on the line. This is done by comparing the incoming signal for magnitude with a DC signal that is generated within the circuit and is proportional to the noise within the frequency band. An indication that any of the signals within the discrete frequency bands exceed the DC signal generated within the same band results in an alarm indication.
    Type: Grant
    Filed: April 4, 1988
    Date of Patent: August 22, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: William P. Huntley
  • Patent number: 4854174
    Abstract: A unique combination of two transducers. A hot film shear stress gauge and a piezoelectric pressure transducer are coaxially located along the longitudinal centerline of a cylindrical metal shell. The hot film shear stress gauge is exposed to the fluid while the pressure transducer is positioned directly below. Conductors are attached to each and the remaining volume filled with plastic to form a colinear unit. The conductors attached to the hot film element provide power while the conductors attached to the piezoelectric transducer transmit pressure produced electrical signals therefrom. The resulting configuration allows the measurement of fluctuating shear stress and fluctuating pressure to be made simultaneously at a single spatial location at a solid wall bounding a turbulent fluid flow layer.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: August 8, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: William L. Keith
  • Patent number: 4848210
    Abstract: A device for storing potential energy in the form of a distended elastome bladder and rapidly converting that stored energy into kinetic energy of a working fluid for quietly ejecting a projectile from the device into the surrounding fluid medium.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: July 18, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Laurent C. Bissonnette
  • Patent number: 4848146
    Abstract: A velocimeter, comprising a controlled magnetic field source and electric field sensors, the device being flush mounted in a vessel hull. The magnetic source comprises a drive coil which may be energized with either a DC current or an AC current at varous desired frequencies. The turns-area product and applied current are selected based on desired sensitivity. When the drive coil is energized, a uniform magnetic field is produced near the surface of, and normal to, the hull. The thickness of the uniform region is governed by the thickness of the boundary layer in the tubulent region. The magnetic field returns through the vessel hull structure in such a way that divB=0. Inside the coil, near the outboard external surface of the device, a pair of orthogonally disposed electric field sensors are located for measuring the electric field produced as a result of the interaction between the magnetic field and the conductive fluid.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: July 18, 1989
    Inventors: Anthony B. Bruno, Rolf G. Kasper
  • Patent number: 4847628
    Abstract: A frequency independent constant beamwidth lens antenna concept is descri utilizing a point source to point focus nonspherical lens. The essential feature is that a twisted planar or hyperbolic paraboloidal phase or wave front is formed by the antenna which then in turn produces a frequency indepenent constant beamwidth beam in the far field of the antenna for radiation or reception of planar or nearly planar spherical waves. Moreover, the frequency independent constant beamwidth beam may be steered or scanned in azimuth without moving the lens antenna or a plurality of fixed beams in different directions may be formed simultaneously by the lens antenna.
    Type: Grant
    Filed: July 7, 1988
    Date of Patent: July 11, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Robert L. Sternberg
  • Patent number: 4838797
    Abstract: A plug and receptacle combination is transformer coupled. There are no exed contacts to the environment at any time, whether the plug and receptacle combination are mated or separated from each other. By encapsulating the primary winding and secondary winding separately in a respective plug and receptacle, mating and unmating can be accomplished while submerged in water.
    Type: Grant
    Filed: June 19, 1987
    Date of Patent: June 13, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Paul J. Dodier
  • Patent number: 4835462
    Abstract: A voltage measuring device for accurately sensing the AC load voltage at remote, distal end of a long, two-conductor cable, the measuring device comprising a parallel arrangement of an AC source and a DC voltmeter, located at the proximal, source end of the cable, and an AC load in parallel with a passive, DC producing module at the distal, load end of the cable, the passive module further comprising a passive, DC producing voltage divider, the output of which is proportional to the AC load voltage drop.
    Type: Grant
    Filed: February 1, 1988
    Date of Patent: May 30, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: William L. Konrad
  • Patent number: 4833271
    Abstract: Structurally-defined, low molecular weight oligomers and preparation thereof which are active in the protection of oxidative physphorylation of mitochondria and exhibit ionophoretic activity. Said structurally defined low molecular weight oligomers are synthesized using a modified 15-dehydro PGB.sub.1 such as 16,16-dimethyl-15-dehydro prostaglandin B.sub.1 as a precursor to obtain oligomeric mixtures which are structurally defined and active in the protection of oxidative phosphorylation and exhibit ionophoretic activity. Synthesis of modified 15-dehydro-PGB.sub.1 ; 16,16-dimethyl-15-dehydro-prostagalandin B.sub.1 ; is also described.
    Type: Grant
    Filed: August 23, 1985
    Date of Patent: May 23, 1989
    Inventor: George L. Nelson
  • Patent number: 4825441
    Abstract: A free electron laser (FEL) is described which is used for generating high ower radiation in a region of increasing guiding magnetic field before injection into an undulating low magnetic field. It includes an electron beam propagating along a guiding magnetic field B.sub.0 (approximately 10 kilo gauss) inside a hollow metallic tube used as a wave guide. Around the path of the beam, an undulator in the form of a bifilar helical winding or the like produces a periodic magnetic field B.sub.1 (approximately 0.5 to 1.0 kG). The electron motion accordingly has a substantial transverse component and the motion at the cyclotron and undulator frequencies occurs. Due to the energy exchange between the gyrating component of electron motion and an electromagnetic wave already present in the hollow tube, radiation of a calculable frequency is amplified.
    Type: Grant
    Filed: January 31, 1984
    Date of Patent: April 25, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Thomas C. Marshall, S. Perry Schlesinger, Arthur A. Grossman, Shien-Chi Chen
  • Patent number: 4819503
    Abstract: A low frequency structureborne vibration isolation mount includes an annu disk pad of vibration damping material which is sandwiched and bonded between two similar light but rugged annular disks. The annular disk pad and the two annular disks have equal number of matching and corresponding holes along the circumferences thereof. The sizes of the holes are so chosen that one of the annular disks can be secured to the moving piece of equipment and isolated from everything else and the other annular disk can be secured to the stationary piece of equipment. The vibrations of the moving piece of equipment are thus isolated from everything else.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: April 11, 1989
    Assignee: Unites States of America as represented by the Secretay of the Navy
    Inventors: Valentino N. Fazi, Jr., Ronald G. Murdock, Ernest O. Hancock, John W. McCready
  • Patent number: 4819216
    Abstract: For a simplified towed array configuration an integrated hydrophone, preamplifier and telemetry hybrid unit suitable for connecting with a single coaxial cable was developed. The preamplifier and FM hydrophone telemetry assembly comprises an air backed ceramic assembly connected to a preamplifier/voltage control oscillator chip. In addition the chip includes a regulator and power separation network.
    Type: Grant
    Filed: April 1, 1983
    Date of Patent: April 4, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Dominic Fraioli
  • Patent number: 4815049
    Abstract: A selectively transparent baffle means for controlling beam pattern dispel or direction, further comprising a plurality of parallel, vertically oriented, compliant tubes each of which attach to one of two header tubes at one end while the opposite ends are open to sea pressure. The headers provide air fill or vent.
    Type: Grant
    Filed: September 1, 1988
    Date of Patent: March 21, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: William L. Konrad
  • Patent number: 4812050
    Abstract: Double-sided, high-frequency response heat flux gauge for use on metal tune blading consists of a metal film (1500A) resistance thermometer sputtered on both sides of a thin (25 .mu.m) polyimide sheet. The temperature difference across the polyimide is a direct measure of the heat flux at low frequencies, while a quasi-one-dimensional analysis is used to infer the high-frequency heat flux from the upper surface history. A new method of calibrating the heat flux gauge utilizes light source applied to a plurality of fluids covering the surface of the gauge, measuring the temporal output of the gauge and utilizing derived calibration formula.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: March 14, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Alan H. Epstein, Gerald R. Guenette, Robert J. G. Norton