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Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 4767986 | Oscillating transducers for monitoring the surface of elongated objects A device for measuring or testing of an object, for example rolled wire, a tube, or a billet, to detect surface discontinuities employs a sensing transducer which is oscillated backwards and forwards over the surface of the test object by means of a motor... | 08/30/1988 |
| 4761770 | Ultrasonic binaural sensory aid for a blind person A method for processing a reflected echo signal which is received from an object and supplied to an ultrasonic binaural sensory aid comprising the step of stretching said reflected signal in time axis, and the step of converting the stretched signal into ... | 08/02/1988 |
| 4761610 | Apparatus for determining the position of surface defects of a test objects with respect to an edge thereof Apparatus for determining the location of surface defects on a test piece of electrically conductive material by scanning the surface with at least one sensor arrangement comprising proximity sensors based on eddy current induction. The test piece may be ... | 08/02/1988 |
| 4760797 | Method and apparatus for automated tie detection and tamping Apparatus for detecting at least one metallic object in a series of metallic objects lying along a path in a repetitive pattern by a metallic detector mounted on a vehicle movable along the path with the movement of the vehicle controlled by the detector ... | 08/02/1988 |
| 4748345 | Pulse conditioning circuit for controlling electrically controllable valves in a hydraulic control apparatus Pulse conditioning device for electrically controlling valves in hydraulic control apparatus whereby a regulating signal is transmitted to the actuator of the respective electrically controllable valve. A filter is connected to the input side of an isolat... | 05/31/1988 |
| 4745627 | Procedure and circuit for detection of the information of a received signal Two phase-shifted quadrature signals are formed from a reception signal modulated by frequency-shift keying. Instant values of one of the quadrature signals are taken at the instant when the other quadrature signal passes through zero and vice-versa. The ... | 05/17/1988 |
| 4739665 | Torque transducer with neutral point compensation A torque transducer with neutral point compensation has a measuring axle formed as a hollow member inside which a slender torsion spring is axially arranged to internally load the hollow member. With this device a constant torque load on the measuring axl... | 04/26/1988 |
| 4703385 | Protective circuit for series capacitor banks As overvoltage protection for a series capacitor (C1-C5) in a high-voltage network a voltage-dependent resistor (Z6), built up of metal oxide varistors, is arranged in parallel with the capacitor. In parallel with the resistor there is a spark gap means c... | 10/27/1987 |
| 4352140 | Surge arrester In a surge arrester comprising a stack of series-connected cylindrical ZnO-varistors in an insulating housing, the envelope surface of each varistor is provided with an insulating protection means, which overlap varistors positioned adjacent to each other... | 09/28/1982 |
| 4351011 | Directional wave detector apparatus In directional wave detector apparatus for electrical power line relay protection devices determining the direction to a fault, the current and voltage of the travelling waves generated by a fault point are combined at a measuring point and the sign of th... | 09/21/1982 |
