Patents Represented by Attorney T. W. Kennedy
  • Patent number: 4644360
    Abstract: Separate receive and transmit interleaved arrays are distributed throughout a defined area. Each array is interconnected, at opposite ends thereof, to a feed line so that the receive and transmit antennas are each associated with four beams. Feed through connections are employed between receive feed lines and the receive arrays of the antenna thereby permitting the utilization of a microstrip structure.
    Type: Grant
    Filed: January 28, 1985
    Date of Patent: February 17, 1987
    Assignee: The Singer Company
    Inventors: James B. Mead, Leonard Schwartz, Emile J. DeVeau
  • Patent number: 4639231
    Abstract: Apparatus is disclosed for retaining an electrically fired getter inside a ring laser gyroscope. A groove is formed in a plate, which is hermetically sealed to a hole in the ring laser gyroscope block. The cylindrically shaped getter is placed longitudinally in the groove such that the getter contacts the groove along only two lines. A mousetrap shaped spring preloads the getter against the groove so as to prevent acceleration forces and vibrations from causing pieces of the getter, heater coil or wire to break loose.
    Type: Grant
    Filed: September 23, 1985
    Date of Patent: January 27, 1987
    Assignee: The Singer Company
    Inventors: James G. Koper, Bo H. G. Ljung
  • Patent number: 4583079
    Abstract: Multiple input channels, containing servo angle data, undergo analog multiplexing by a single non-linear ladder and switch network which generates a steering voltage on a channel-by-channel basis. The steering voltage undergoes demodulation and digitization for feedback to the multiplexed non-linear network thereby emulating a Type II servo loop. The digitized angle information is also made available as tracking converter outputs.
    Type: Grant
    Filed: December 14, 1983
    Date of Patent: April 15, 1986
    Assignee: The Singer Company
    Inventor: David J. Simon
  • Patent number: 4583162
    Abstract: A memory access system for a computer is improved by combining look ahead techniques with a partitioned memory. A parallel system operating in reciprocal fashion accesses from one portion while the other portion is generating the next predicted address. The system can also be adapted for use with virtual addressing.
    Type: Grant
    Filed: January 13, 1983
    Date of Patent: April 15, 1986
    Assignee: The Singer Company
    Inventor: Robert S. Prill
  • Patent number: 4536064
    Abstract: In a clear viewing screen of the kind comprising a fixed screen element; a disk-like screen element supported for rotation at the outside of the window; a motor for driving the rotatable disk-like screen element supported at the inside of the fixed screen element; the motor to coupled the rotatable disk-like screen element, the motor mounted at the periphery of said rotatable disk-like screen element, and a magnetic coupling having first and second coupling halves is provided, one coupling half coupled to the motor, and the other coupling half coupled to the rotatable disk-like screen element, the coupling members disposed opposite each other on opposite sides of the fixed screen element so that coupling can take place without making a hole in the fixed screen element.
    Type: Grant
    Filed: February 3, 1984
    Date of Patent: August 20, 1985
    Assignee: The Singer Company
    Inventors: Arnold Schindel, Edward Higgins, Jr.
  • Patent number: 4503543
    Abstract: A resilient serpentine shaped tungsten wire is formed to match a short wire section to hold a ring laser gyroscope getter. The getter-holder assembly is positioned within a stepped oblong bore so that the getter is in firm contact with the bore surface at two points. This prevents resonances of the getter or holder that might otherwise destroy the getter while subjected to vibrations.
    Type: Grant
    Filed: July 16, 1982
    Date of Patent: March 5, 1985
    Assignee: The Singer Company
    Inventors: Bo H. G. Ljung, John C. Stiles
  • Patent number: 4493997
    Abstract: A shaft state sensor includes a rotating member having a miniaturized lamp mounted thereto. A rotary transformer is connected to the lamp and supplies it with power. A number of optic fibers are arranged in a circular configuration on a stationary member of the sensor. The center of the circular configuration is coaxial with the shaft of the rotating member. As the shaft turns, the lamp becomes sequentially aligned with each of the fibers thereby indicating changes in shaft position. The fibers are connected to an optical coupler which is in turn connected to an optical density discriminator for detecting when the light passing through a particular optic fiber exceeds the required threshold level. The output from the discriminator is optical and may travel over substantial cable distances to a computer location without the introduction of electrical noise so that shaft position or velocity may be computed.
    Type: Grant
    Filed: September 1, 1982
    Date of Patent: January 15, 1985
    Assignee: The Singer Company
    Inventor: Arnold Schindel
  • Patent number: 4486845
    Abstract: A circuit for duplicating the function of an incremental shaft encoder comprises a rugged resolver connected to a hybrid digital-analog circuit which generates output signals identical to those of a counterpart incremental encoder. The digital portion of the circuit includes terminals whereat absolute angle measurements of a shaft may be made.
    Type: Grant
    Filed: July 23, 1982
    Date of Patent: December 4, 1984
    Assignee: The Singer Company
    Inventor: James J. Duckworth
  • Patent number: 4477188
    Abstract: A monolithic ring laser gyroscope is formed by six mirrors mounted to the respective center of each face in a cube. Bores in the cube interconnect each of the mirrors. Three orthogonal planes are defined within the cube, each of which contains a laser cavity. Accordingly, three orthogonal beam paths exist, each responsive to rotational inputs about three orthogonal axes.
    Type: Grant
    Filed: April 16, 1982
    Date of Patent: October 16, 1984
    Assignee: The Singer Company
    Inventors: John C. Stiles, Bo H. G. Ljung
  • Patent number: 4473297
    Abstract: Two of the three reflecting mirrors in a ring laser gyroscope are provided with transducers permitting the mirrors to control the ring laser gyroscope laser path. The third mirror is partially reflecting to permit some cavity radiation to exit. The radiation includes winking signal components which are related to laser beam lock-in. By controlling the phase difference between the signal components, minimum lock-in may be achieved.
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: September 25, 1984
    Assignee: The Singer Company
    Inventors: James H. Simpson, James G. Koper
  • Patent number: 4464942
    Abstract: A universal joint hinge assembly for a tuned rotor gyroscope is insensitive to restraint changes due to spin axes accelerations. The hinge assembly is readily trimmable at the gyroscope wheel assembly to permit adjusting of the axial compliance of the gyroscope wheel thereby reducing the rectified torques due to linear acceleration.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: August 14, 1984
    Assignee: The Singer Company
    Inventor: Walter J. Krupick
  • Patent number: 4452342
    Abstract: A braking mechanism for a rotating shaft includes a corrugated wheel keyed to the shaft. A polyurethane pad mounted on a spring-biased plunger contacts the wheel corrugations creating non-permanent mating formations in the pad. Thus, upon contact between the two, the wheel and pad mesh thereby preventing wheel rotation until the pad is withdrawn.
    Type: Grant
    Filed: February 18, 1982
    Date of Patent: June 5, 1984
    Assignee: The Singer Company
    Inventor: Arnold Schindel
  • Patent number: 4446394
    Abstract: A single beam force transducer is provided with integrally affixed isolation springs which are axially compliant and unbalanced in their spring rates so as to induce beam bending due to applied tension and compression. The amount of bending introduced due to applied tension will be of a precise magnitude so as to substantially cancel undesirable non-linear vibration effects.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: May 1, 1984
    Assignee: The Singer Company
    Inventor: William C. Albert
  • Patent number: 4444502
    Abstract: An electromechanically dithered ring laser gyroscope includes a beam combiner utilizing optical fibers instead of conventional optics. This permits a beam measuring photodetector and associated electronics to be positioned outside the gyroscope or its enclosure. The invention further includes a dither compensator using optical fibers thereby replacing sensitive electronic or optical dither compensating components.
    Type: Grant
    Filed: June 4, 1981
    Date of Patent: April 24, 1984
    Assignee: The Singer Company
    Inventor: Bo H. G. Ljung
  • Patent number: 4445065
    Abstract: A single beam force transducer has a beam characterized by a thickened central portion and tapered outward portions. The support members of the transducer are thickened and are thus stiffer while the isolator masses are shortened. These critical configuration changes raise the undesirable "tuning fork" resonant frequency of the beam supporting structure far above that of the beam and ensures that the isolating structure behaves as a rigid body.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: April 24, 1984
    Assignee: The Singer Company
    Inventor: William C. Albert
  • Patent number: 4436423
    Abstract: A torsional hinge is axially mounted within a central bore of a ring laser gyroscope body. The hinge comprises a plurality of angularly spaced wing sections having generally radially extending slits therein for permitting torsional motion of the gyroscope about the hinge. A plurality of spaced arcuate segments bridge a gap between the wing sections and the confronting surface of the bore and are cemented to the surface for securement of the hinge. By properly dimensioning and positioning the subtending contact areas of the hinge within the bore, the effects of thermal expansion of the hinge are minimized thereby inhibiting distortion of the gyroscope body as well as path length changes with temperature.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: March 13, 1984
    Assignee: The Singer Company
    Inventors: Shri A. Kumar, Bo H. G. Ljung, James G. Koper
  • Patent number: 4435757
    Abstract: A master clock for a microprogrammed digital computer generates output pulses whose separation in time can be varied in response to each microinstruction or to a process-related signal. The output pulses are formed from basic time units from a clock generator which are combined, in digital logic circuitry, to form a minimum time interval and supplemented, under command, with the necessary additional time units to delay the next output pulse by the required amount of time.
    Type: Grant
    Filed: June 30, 1981
    Date of Patent: March 6, 1984
    Assignee: The Singer Company
    Inventor: John W. Pross, Jr.
  • Patent number: 4433260
    Abstract: A hysteresis synchronous motor in which a rotor includes arcuate permanent magnets mounted adjacent to the hysteresis ring material. Permanent magnetic poles are induced in the ring material by the rotating electromagnetic stator field. After start-up, the rotor remains synchronized with the rotating field due to the mutual attraction of opposite magnetic poles.
    Type: Grant
    Filed: October 12, 1982
    Date of Patent: February 21, 1984
    Assignee: The Singer Company
    Inventors: Leon E. Weisbord, Francis W. Wessbecher
  • Patent number: 4431947
    Abstract: A feedback control system for maintaining the intensity and spectral distribution of light at a predetermined level at a wavelength characteristic of the excited source. Control of that intensity, which exhibits a systematic but not necessarily a monotonic relation with excitation, is achieved by measuring and controlling the intensity of flux at another characteristic wavelength which is both systematic and monotonic.
    Type: Grant
    Filed: June 4, 1982
    Date of Patent: February 14, 1984
    Assignee: The Singer Company
    Inventors: Lincoln Ferriss, Donald Shernoff
  • Patent number: D272801
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: February 28, 1984
    Assignee: The Singer Company
    Inventors: Shri A. Kumar, Bo Ljung, James G. Koper