Patents Assigned to The The United States of Americas as represented by the Secretary of the Navy
  • Running average computer
    Patent number: 4054786
    Abstract: A special purpose digital computer requiring minimal data storage capabil for continually calculating the numerical average of a predetermined number of sampled data values. The average I.sub.n + 1 is calculated according to the equation: ##EQU1## WHEREIN I.sub.n is the nth average stored; andX.sub.n + 1 is the (n + 1) sample input.A new value for the average of all previously sampled data is calculated upon receipt of each new sample thereby eliminating the storing of past sampled data values. The prior calculated average is multiplied by the previous number of data samples and the product is added to a new sample. The resultant sum is divided by the sequence number of the new sample and the quotient, which represents the new average, is placed in data storage.
    Type: Grant
    Filed: September 24, 1973
    Date of Patent: October 18, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Allen E. Vincent
  • Connector assembly
    Patent number: 4054345
    Abstract: A connector assembly to complete electrical connection between packaged electrical components. A connector header and a lead-in header commute by means of internal channels to form paths for an array of contact pins. Each pin is dimpled for self-retention in a channel after insertion. The design of the connector header allows continual access to the pins for individual removal in case of failure. Header design is symmetrical, allowing fabrication of a variety of connector lengths from a single mold.
    Type: Grant
    Filed: January 29, 1976
    Date of Patent: October 18, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Theodore R. Sherwood
  • Apparatus for computing an arithmetically accumulated sequence of numbers
    Patent number: 4054787
    Abstract: Apparatus for computing an arithmetically accumulated sequence of exponenantissa formatted numbers, which comprises write-in apparatus and read-out apparatus. The write-in apparatus comprises means for separating each of a sequence of numbers in exponent-mantissa form according to the values of the exponent, the value of the exponent being employed as a storing address for the number. Means connected to the separating means algebraically sum mantissas of like exponents; the two above means comprising a write logic block. A random-access memory is connected to the summing means for storing the sum of the mantissas. It also includes means for addressing the storing means.
    Type: Grant
    Filed: June 6, 1975
    Date of Patent: October 18, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Norman D. Pos
  • Cavity antenna
    Patent number: 4054876
    Abstract: A cavity antenna having an aperture which may be mounted flush to the gro plane. A chamber positioned above a rectangular resonant cavity allows the antenna to achieve normal bandwidth and normal gain with a very thin cavity depth.
    Type: Grant
    Filed: March 1, 1976
    Date of Patent: October 18, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Gary R. Hoople
  • Series-parallel scan, IR, CID, focal-plane array
    Patent number: 4054797
    Abstract: A series-parallel scan, IR, focal plane array which uses small InSb CID mles. The CID is used to premultiplex photocurrent through a preamplifier before the photosignal is introduced into a Si CCD TDI signal processor.
    Type: Grant
    Filed: September 23, 1976
    Date of Patent: October 18, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: A. Fenner Milton, Michael R. Hess
  • Stepped dual-frequency, ocean-wave spectrometer
    Patent number: 4053886
    Abstract: A coherent stepped dual-frequency, ocean-wave, spectrometer radar system for measuring the characteristics of ocean-surface gravity waves includes: a transmitter for transmitting in successive steps coherently related pairs of frequencies having different, small, and known frequency separations; a coherent receiver for receiving and separating the radar returns of the stepped pairs of frequencies, a frequency-shifter for offsetting the doppler spectrum of each radar return, a multiplier for multiplying together the two frequencies of each pair for each step to obtain a Bragg resonance condition for each step; and a plurality of stepped detectors each for detecting a different step of said multiplier output.
    Type: Grant
    Filed: November 19, 1976
    Date of Patent: October 11, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John W. Wright, William J. Plant, Dale L. Schuler
  • Internal calibration system
    Patent number: 4053890
    Abstract: A pulse-generation means produces RF pulses that are injected into the ra receiver. A range control means and an attenuation control means selectively vary the range and the signal strength of the RF pulses in either a manual or an automatic sequence. A display and evaluation means determines the signal strength at which a radar tracking lock is established and compares that signal strength with a standard to provide an indication of receiver operability.
    Type: Grant
    Filed: May 25, 1976
    Date of Patent: October 11, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: David S. Woodson, III, Louis R. Rudolph
  • Coating composition and method for improving propellant tear strength
    Patent number: 4052943
    Abstract: 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 may produce tears resulting in motor malfunctions. Tear strength can be increased by reactively forming on selected port surface areas a thin-film cross-linked polymeric gel coating formed essentially of a highly functional polyglycol adipate and a polyfunctional isocyanate. Cross-linking with the propellant can be achieved by controlling the hydroxyl to isocyanate ratios of the coating and the propellant. The coating is particularly useful on XLDB (cross-linked, composite-modified double base) and on CMDB (composite-modified double-base) propellants.
    Type: Grant
    Filed: September 16, 1976
    Date of Patent: October 11, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Donald E. Elrick
  • Edge detection analyzer
    Patent number: 4053928
    Abstract: A contrast detection analyzer for detecting all edges sensed during a cirar scan and their angles with respect to vertical, wherein an edge near the center of the scan is detected, the angle is measured regardless of the light or dark orientation, and the exclusivity of the edge is determined. The analyzer output is in a digitized format suitable for computer calculations.
    Type: Grant
    Filed: July 23, 1976
    Date of Patent: October 11, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Criley Orton, Richard G. Bahler
  • Reinforced filament-wound cut-port pressure vessel and method of making same
    Patent number: 4053081
    Abstract: 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 structure having filament windings and identically-sized polar openings equal to or less than the smaller of the openings dictated by the design. Identical openings permit the constant winding angle. In the winding operation, wafer-like mats formed of dimensionally-stable material are interspersed between the filament layers at each polar end. In the final step, the polar openings then are machined to the desired size. The interspersed mats encircle the polar openings and reinforce the polar regions.
    Type: Grant
    Filed: August 20, 1976
    Date of Patent: October 11, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Charles M. Minke
  • Solid state two-wire/four-wire converter with common battery
    Patent number: 4053722
    Abstract: A hybrid system utilizing a plurality of operational amplifiers provides for appropriate isolation of input and output signalling. A signal initially appearing at the incoming path of the four-wire line appears as a balanced signal at the two-wire input/output end of the system but is effectively canceled from appearing at the output path of the four-wire input/output end. A signal initially placed on the two wire input/output end of the system appears at the output of the four-wire input/output end but is effectively canceled from the input line of the four-wire input/output end. A direct current path for common battery supply of loop current, while maintaining line impedance match over the audio frequency bandwidth is maintained.
    Type: Grant
    Filed: October 4, 1976
    Date of Patent: October 11, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Lawrence P. Nahay
  • Baffled combustion chamber
    Patent number: 4052846
    Abstract: An apparatus to improve combustion efficiency of solid fueled ramjets by ucing or slowing down the mixing between the air stream and the combustion zone near the fuel grain. The mixing process is altered by placing a control device parallel to the longitudinal axis of the combustion chamber and spaced from the interior wall of the solid fuel. The device may take the form of a co-axial tube which may be perforated slotted or segmented.
    Type: Grant
    Filed: January 8, 1976
    Date of Patent: October 11, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Klaus Schadow
  • Process for bonding polymers
    Patent number: 4053680
    Abstract: A material which has two reactive groups, one of which is reactive with the irst of two dissimilar polymeric materials but not the second and the other of which is reactive with the second but not the first, is utilized to bind layers of the two polymeric materials together. The groups that are reactive with the first polymeric material are reacted with it as a layer of that material cures. Then a layer of the uncured second polymeric material is placed on the first and the groups that are reactive with it are reacted with it as it cures.
    Type: Grant
    Filed: December 4, 1975
    Date of Patent: October 11, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Bernard Wasserman, Martin H. Kaufman
  • Acoustic hologram reconstructor using surface acoustic wave devices
    Patent number: 4053867
    Abstract: This invention relates to an acoustical hologram reconstructor using surf acoustic wave (SAW) devices, which is a major part of apparatus which converts an acoustical hologram into a focused optical image, both having a magnitude and phase. The focused image is ultimately converted to an optical image having intensity variations, which can be viewed on a TV monitor. Two parallel convolvers, implemented by surface wave devices, are required to achieve the necessary speed of signal processing. One convolver loads while the other calculates, and vice versa. Circuitry is included to perform the following three functions required to reconstruct an intensity pattern: (1) multiplication of the hologram data by a focusing correction term; (2) performance of the inverse Fourier transform; (3) squaring and summing the real and imaginary components.
    Type: Grant
    Filed: December 22, 1975
    Date of Patent: October 11, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Newell O. Booth, Ralph D. Hippenstiel
  • High prf unambiguous range radar
    Patent number: 4053884
    Abstract: A pulse-compression MTI doppler radar system includes an antenna, a transter, a coded modulator, a receiver and a display. The coded modulator is connected to the transmitter and has at least two waveform generators for coding pulses having low cross-correlation. A pulse-compression filter having at least two pulse compressors for providing pulse compressed signals is connected to the receiver. Each pulse compressor is matched autocorrelatively to a different one of the waveform generators. An MTI processor has two MTI processing channels which are responsive to the pulse-compressed signals and provide an output to the display.
    Type: Grant
    Filed: March 26, 1976
    Date of Patent: October 11, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Ben H. Cantrell, Bernard L. Lewis
  • Radial depressor
    Patent number: 4051799
    Abstract: A depressing force in the form of negative lift is hydrodynamically generd on a towed underwater vehicle as a result of fluid in motion passing static fluid separated by a membrane so as to cause a negative pressure zone externally of the membrane. The external negative pressure enhances distension of the membrane into a water foil generating additional negative lift.
    Type: Grant
    Filed: June 28, 1976
    Date of Patent: October 4, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Albert E. Wallen, Paul L. Whitehead
  • High speed fiber optic communication link
    Patent number: 4052611
    Abstract: A high speed fiber optic communication link having a differential transmir circuit for receiving digital data and providing a first output for transmitting a signal representing a logic "one" and a second output for transmitting a signal representing a logic "zero". First and second light emitting diodes are provided for converting the electrical signals into light signals. These light signals are transmitted by optical waveguides to first and second light detecting diodes which convert the light signals back into electrical signals. These converted electrical signals are then amplified by a differential receiver circuit.
    Type: Grant
    Filed: April 22, 1975
    Date of Patent: October 4, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Franklin H. Fish
  • Digital amp-hour monitor
    Patent number: 4051424
    Abstract: An amp-hour monitor is provided to determine the power expended by a marine attery power supply system. Digital processing circuitry monitors a selected battery system and provides a readout of the power expended using a digital display. Additionally, a display of on-line current being drawn from the individual battery packs is displayed.
    Type: Grant
    Filed: July 13, 1976
    Date of Patent: September 27, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: James A. Privee
  • Parallel/time-shared variable time delay generator with common timing control and fast recovery
    Patent number: 4051390
    Abstract: A video-blanker system for supplying blanking pulses to receivers including main delay one-shot for responding to a pretrigger pulse and establishing a time delay in response thereto by providing an output pulse of a predetermined width and an auxiliary delay one-shot having its input AND coupled to the pretrigger pulse and to the output of the main delay one-shot for responding to pretrigger pulses occurring during the timing cycle of the main delay one-shot. The outputs of the main and auxiliary delay one-shots are trailing edge discriminated and OR coupled to initiate a pulse width one-shot which supplies the required blanking pulse. The main and auxiliary delay one-shots include means for reducing the recovery times thereof, without affecting the quasistable periods.
    Type: Grant
    Filed: June 18, 1976
    Date of Patent: September 27, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Charlie F. Reeves
  • Catoptric lens arrangement
    Patent number: 4050775
    Abstract: A family of catoptric lens arrangements is provided for focusing a maximum mount of light from an omnidirectional source into a parallel or conical beam. A rear spherical-curvature reflector is inserted into a conventional forward spherical plus rear parabolic reflector arrangement, with its center of curvature and the light source both at the focal point of the parabolic reflector. In addition, a forward collimating lens is substituted for the central portion of the forward reflector. The theoretical 100% efficiency achieved by this arrangement is independent of the diameters of the forward and rear reflectors provided, of course, that the positions and curvatures are suitably compensated.
    Type: Grant
    Filed: July 26, 1976
    Date of Patent: September 27, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: James R. Scholten