Patents Examined by G. E. Montone
  • Patent number: 3951692
    Abstract: A microwatt thermoelectric generator suitable for implanting in the body. The disclosed generator utilizes a nuclear energy source. Provision is made for temporary electrical connection to the generator for testing purposes, and for ensuring that the heat generated by the nuclear source does not bypass the pile. Also disclosed is a getter which is resistant to shrinkage during sintering, and a foil configuration for controlling the radiation of heat from the nuclear source to the hot plate of the pile.
    Type: Grant
    Filed: July 18, 1974
    Date of Patent: April 20, 1976
    Assignee: Nuclear Battery Corporation
    Inventors: Fred Hittman, Thomas S. Bustard
  • Patent number: 3950704
    Abstract: A time delay period between a first signal and a delayed second signal is iminated, restoring the original time relationship between the two signals as derived from a common trigger signal which may vary in its repetition rate. Known, uniform time increments are defined by a constant frequency source producing pulses connectable to both a static shift register having a predetermined number of bits, and a counter having its maximum cumulative count set at the sum of the predetermined number of bits in the shift register and the number of uniform time increments in the time delay period between the first and second signals. The common trigger signal is operative to simultaneously connect the source of clocking pulses to actuate both the shift register and the counter. Upon reception the delayed second signal is connected to the input of the shift register and upon reaching the maximum cumulative count of the counter, the clocking pulses are disconnected from both the shift register and the counter.
    Type: Grant
    Filed: September 12, 1974
    Date of Patent: April 13, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Bernarr H. Humpherys
  • Patent number: 3949831
    Abstract: A device for generating acoustic waves in a liquid, comprising two hollow enclosures communicating through a narrow passageway, a valve interposed in said passage way for controlling said communication, means for feeding a first one of said enclosures, in free communication with the ambient liquid, with pressurized fluid and suction means for reducing the pressure in the second enclosure to a level considerably lower than that prevailing in the first one.
    Type: Grant
    Filed: April 29, 1974
    Date of Patent: April 13, 1976
    Assignee: Institut Francaise de Petrole, des Carburants et Lubrifiants
    Inventors: Jean Cassand, Jean-Pierre Fail
  • Patent number: 3950669
    Abstract: The time duration of an erasing cycle is shortened and "raster burn" is reduced by first applying potentials which result in a substantially uniform charge over the storage surface by means of secondary electron redistribution. This causes the storage target surface to assume a substantially uniform "white" level. Thereafter, the charge on the storage target surface is reduced to a substantially uniform "black" level.
    Type: Grant
    Filed: April 24, 1974
    Date of Patent: April 13, 1976
    Assignee: RCA Corporation
    Inventor: Edgar Merle Smith
  • Patent number: 3950748
    Abstract: A method and an apparatus for determining in a radar system the optimum eination threshold for suppressing permanent echoes are described. A basic elimination threshold is defined which is modified once per revolution of the radar antenna or several times during each revolution in each area covered by the radar system, by the addition or the subtraction of a coefficient depending on the comparison of the amplitude of the video signals with a previously set threshold. Then the residual clutter rate is calculated for each revolution of the antenna and also for each area covered and is compared with two fixed values, i.e. an upper and lower limit. A coefficient is derived from this comparison and is added to or subtracted from this previously set normal threshold, depending on whether the result of the comparison, is less than the minimum-rate value or greater than the maximum-rate value.
    Type: Grant
    Filed: June 17, 1974
    Date of Patent: April 13, 1976
    Assignee: Thomson-CSF Visualisation et Traitement des Informations (T-VT)
    Inventor: Francis Busy
  • Patent number: 3949264
    Abstract: An electronic storage tube of the electron beam modulated type employing a target structure of the "coplanar grid" type in which the coplanar grid is a multilayered structure having at least one layer thereof which is more immune to ionizing radiation, such as X-rays, than at least one of the remaining layers, to yield a target structure in which erasure time and retention time are both significantly improved even though the stored pattern is repetitively read out.A method is also described herein for operating target structures of the type described hereinabove to take advantage of the above mentioned advantageous characteristics and thereby yield an electronic storage tube having operating characteristics not heretofore capable of being provided in conventional structures.
    Type: Grant
    Filed: March 8, 1974
    Date of Patent: April 6, 1976
    Assignee: Princeton Electronics Products, Inc.
    Inventor: Steven R. Hofstein
  • Patent number: 3947723
    Abstract: A closed loop controlled amplifier operable on low power is disclosed. The amplifier utilizes a relatively slow, high voltage transistor that is saturated during the active sweep and cut off during the retrace. A dampening network is included which operates during the active horizontal deflection time. A current feedback is derived from the horizontal deflection yoke to stabilize and control the amplifier.
    Type: Grant
    Filed: March 25, 1974
    Date of Patent: March 30, 1976
    Assignee: Lockheed Missiles & Space Company, Inc.
    Inventor: James P. Thompson
  • Patent number: 3946829
    Abstract: An ultrasonic device for convergently radiating ultrasonic energy including a metallic ring vibrated to resonance by at least one electromechanical transducer fixed on the outer circumference of the ring, thereby to deliver high power ultrasonic waves from the inner circumference of the ring into the vacant center thereof.
    Type: Grant
    Filed: October 17, 1973
    Date of Patent: March 30, 1976
    Assignee: Nippon Tokushu Togyo Kabushiki Kaisha
    Inventors: Eiji Mori, Kozo Okada, Saburo Ueno
  • Patent number: 3946383
    Abstract: A monopulse pulse width discriminator for differentiating between input sals on the basis of pulse width and amplitude, having discriminator and timing circuits which outputs gate a video track loop fed by the modified input signal.
    Type: Grant
    Filed: June 22, 1970
    Date of Patent: March 23, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Richard Smith Hughes, Robert E. Atkinson
  • Patent number: 3946384
    Abstract: A system for controlling the flight of a missile by the use of coded radar signals. A ground level radar transmits coded signals in the form of a phase modulated radar signal. Each coded signal represents a particular guidance command which is received by the missile and "filtered" out of the radar signal by a surface acoustic wave correlator. The correlator detects the code in the signal and in turn energizes a control circuit which operates a control surface on the missile.
    Type: Grant
    Filed: January 21, 1971
    Date of Patent: March 23, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Thomas A. Westaway
  • Patent number: 3944438
    Abstract: A heat-to-electricity converter is disclosed which includes a radioactive heat source and a thermoelectric element of relatively short overall length capable of delivering a low voltage of the order of a few tenths of a volt. Such a thermoelectric element operates at a higher efficiency than longer higher-voltage elements; for example, elements producing 6 volts. In the generation of required power, thermoelectric element drives a solid-state converter which is controlled by input current rather than input voltage and operates efficiently for a high signal-plus-noise to signal ratio of current. The solid-state converter has the voltage gain necessary to deliver the required voltage at the low input of the thermoelectric element.
    Type: Grant
    Filed: March 11, 1974
    Date of Patent: March 16, 1976
    Assignee: Arco Medical Products Company
    Inventors: Thomas F. Hursen, Steven A. Kolenik, David L. Purdy
  • Patent number: 3944879
    Abstract: A pin cushion distortion correction circuit is disclosed in which a parallel circuit of a resistor and a diode is inserted into the base circuit of a driving transistor of a saturable reactor for the correction of left and right pin cushion distortions to increase a correction current corresponding to the central portion of a video screen.
    Type: Grant
    Filed: May 16, 1974
    Date of Patent: March 16, 1976
    Assignee: Sony Corporation
    Inventor: Masao Suzuki
  • Patent number: 3944871
    Abstract: Apparatus for detecting any signal occurring within a wide bandwidth and playing it with a signal-to-noise performance substantially equal to that of a receiver of optimum bandwidth for that signal. The apparatus essentially comprises a special purpose cathode ray tube that functions as a plurality of different detectors that can self-optimize to detect any signal within a wide bandwidth by means of the interactions between the received signals and an electron beam having a wide range of electron velocities and traveling in a zig-zag path in the cathode ray tube.
    Type: Grant
    Filed: August 14, 1970
    Date of Patent: March 16, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Richard S. Trenam
  • Patent number: 3943509
    Abstract: A navigation aiding system primarily for aircraft consists of a number of spaced apart ground stations. A ranging signal is transmitted to each of a number of aircraft in turn in response to received interrogation signals. The system allows a clock carried by each aircraft to be accurately synchronised with a master clock on the ground to permit the range to be measured precisely.
    Type: Grant
    Filed: March 9, 1973
    Date of Patent: March 9, 1976
    Assignee: Elliott Brothers (London) Limited
    Inventor: David Graham Pudsey
  • Patent number: 3942179
    Abstract: A device for generating spot or barrage noise to jam communication equipment, missiles or radar employing a modulating noise that has the high frequencies removed. Said device comprises a filter means and an amplifier in circuit with the noise source, modulator and transmitter of a basic noise jamming device. The filtered output of said device has a non-uniform R.F. spectrum with a random noise density.
    Type: Grant
    Filed: October 18, 1968
    Date of Patent: March 2, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Clifford G. Dorn
  • Patent number: 3942181
    Abstract: A variable-gain amplifier comprises a transistor with an emitter connected in a degenerative emitter-follower circuit which includes a PIN diode traversed by a current injector in the form of an operational amplifier, the PIN diode forming part of a negative-feedback path extending from the output to the inverting input of the operational amplifier. To achieve a gain characteristic whose logarithm varies linearly with a control voltage, this control voltage is fed to the same inverting input through an amplifier circuit with an exponential characteristic, including another operational amplifier provided with an input transistor. A temperature-compensating circuit, preceding that input transistor, comprises still another operational amplifier having a further transistor inserted in its negative-feedback path. The variable-gain amplifier may be included in one of two conjugate (sum and difference) channels of a monopulse radar.
    Type: Grant
    Filed: October 19, 1973
    Date of Patent: March 2, 1976
    Assignee: Thomson-CSF
    Inventors: Francois Berrod, Fernand Puverel
  • Patent number: 3942177
    Abstract: In the measurement of the phase difference (proportional to the elevation angle of a target) provided by the radar target signals that are received by each antenna of an antenna array, a comparison of the responses of the signal processing circuitry to the radar target signals and to two signals with an adjustable known phase difference, causes the known phase difference to change until the result of the comparison is a null. The known phase difference, at the time that the comparison provides a null, is equal to the phase difference provided by the radar target signals and is independent of phase errors introduced by the processing circuitry.
    Type: Grant
    Filed: July 28, 1971
    Date of Patent: March 2, 1976
    Assignee: United Technologies Corporation
    Inventors: Paul M. Danzer, Giles E. Rae
  • Patent number: 3940662
    Abstract: A saturable reactor for correction of pincushion distortion of a TV picture tube raster has, in one form, a magnetically saturable two window core. A single wire control coil is wound transversely around the central leg segment of the core and is connected with the vertical frequency sawtooth driver in a parabolic wave shaping network. A first load coil, wound transversely around one outer core leg, is connected in series circuit with the horizontal frequency sawtooth driver and the horizontal deflection coils. A second load coil is wound around the exterior of the core, in lengthwise embracing relation to its other outer leg, and is connected in series with the vertical deflection coils and also in a phase inverting resonant loop circuit.
    Type: Grant
    Filed: March 14, 1974
    Date of Patent: February 24, 1976
    Assignee: Whitewater Electronics, Inc.
    Inventor: Patric C. Quirke
  • Patent number: 3940769
    Abstract: An apparatus for presenting radar target return signals having a spectrum of frequency components in a binaural audible form whereby an operator can detect a target or a plurality of simultaneous unresolved targets, determine the direction of each target relative to the radar antenna axis, and identify the type and motion of each target using only his auditory sense. The apparatus utilizes a filter to ensure that all frequency components of the return signal from each target have the same relative time of arrival at the two ears, thus binaurally localizing each target.
    Type: Grant
    Filed: January 21, 1974
    Date of Patent: February 24, 1976
    Assignee: RCA Corporation
    Inventors: Samuel Mark Sherman, Leman Goldman, Jr.
  • Patent number: 3938442
    Abstract: A keying system for interlocking the components of a beehive type project by set back force generated by firing of the projectile. Tubular spacing members having smooth rims are engraved by a pre-engraved plate upon the set back force to prevent rotation of the components and the pay load during trajectory of the projectile.
    Type: Grant
    Filed: September 27, 1971
    Date of Patent: February 17, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Vincent J. Donadio