Patents Represented by Attorney Dale Gaudier
  • Patent number: 7240568
    Abstract: A method and apparatus are provided for determining the gas flow rate of a gas-liquid mixture which has a gas volume fraction (GVF) of at least 85% and which is conveyed along a conduit. The conduit is fitted with a differential pressure flow meter and a fluid densitometer. The method comprises: measuring the pressure difference across the differential pressure flow meter and measuring the density of the mixture using the densitometer; estimating the GVF of the mixture from the measured density; and calculating the gas flow rate from the measured pressure difference and measured density. A corrective term which comprises the estimated GVF is used in the calculation to correct the gas flow rate for the high GVF value of the mixture.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: July 10, 2007
    Assignee: Schlumberger Technology Corporation
    Inventor: David Ian Heaton Atkinson
  • Patent number: 6969994
    Abstract: Systems and methods are provided for directional propagation-type logging measurements not sensitive to dip and anisotropy over a wide frequency range. Estimates of the distance of the logging tool to a bed boundary are obtained using “up-down” measurements with antenna configurations having tilted magnetic dipoles. These estimates are insensitive to anistropy and dip, undesirable complications of directional measurements.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: November 29, 2005
    Assignee: Schlumberger Technology Corporation
    Inventors: Gerald N. Minerbo, Dzevat Omeragic, Richard A. Rosthal
  • Patent number: 4780908
    Abstract: Method and apparatus for the regulation of a modulated signal transmitted from a transmitter (E) to a receiver (R) in a differential protection system for an electrical installation. The invention lies in the regulation of the frequency spectrum of the modulated received signal (SMR). The presence of a fault in the electrical installation in this spectrum of low frequency components is attributed to presence of noise bursts in transmission affecting the received signal (SMR).
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: October 25, 1988
    Assignee: Enertec
    Inventor: Jean Arbes
  • Patent number: 4760533
    Abstract: An electronic computer disposed in an explosion-proof casing of a hydrocarbon distributor has its operating mode controlled by a portable box external to the distributor which includes apparatus for emitting a coded infrared beam representative of the desired operating mode. Inside the casing of the computer there is provided decoding apparatus for generating information in response to the infrared beam emitted by the external box. The casing is provided with a window allowing the passage of the infrared beam.
    Type: Grant
    Filed: September 11, 1984
    Date of Patent: July 26, 1988
    Assignee: Volucompteurs Aster Boutillon
    Inventor: Jean Bydlon
  • Patent number: 4752829
    Abstract: An image sensor is disclosed which is capable of handling large amounts of signal charge with small shift registers. The image sensor includes photoelements 10 in which charge is accumulated in response to sensed conditions; electrically-controllable transfer gates 20 adjacent the photoelements 10 for controllably releasing the charge from the photoelements; vertical shift registers 30, separated from the photoelements 10 by the transfer gates 20, for receiving the charge from the photoelements, and a scan generator connected to the barrier 20 for supplying a series of pulses thereto, a group of pulses being required to release all of the charge accumulated in the photoelements 10.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: June 21, 1988
    Assignee: Fairchild Weston Systems, Inc.
    Inventor: Jae S. Kim
  • Patent number: 4739260
    Abstract: A proximity sensor includes an electrical circuit formed by a slot in an elongate conductive strip. The strip carries a magnet having a pole piece protruding through the strip at one end of the slot. At the other end of the slot pass laminations which magnetically couple the electrical circuit and a multi-turn coil arranged on a form attached to the strip. The coil is terminated at a pair of output leads. A ferrous object passing in the vicinity of the pole piece of the magnet modifies the flux pattern at the pole face. The resultant flux changes, being tightly coupled to the electrical strip, induce a low voltage high current emf into the strip, which forms the primary turn of a current transformer. The secondary of the current transformer is formed by the close-coupled coil, which has multiple turns, dependent upon the output voltage required at the output leads.
    Type: Grant
    Filed: June 21, 1985
    Date of Patent: April 19, 1988
    Assignee: Schlumberger Electronics (U.K.) Limited
    Inventor: Kenneth W. Proctor
  • Patent number: 4739279
    Abstract: A method and device for supplying a sinusoidal output signal of controlled phase. First and second input signals, of different phase but derived from a common sinusoidal source, are multiplied by second and first sinusoidal reference signals, respectively. The reference signals are obtained by sampling the first and second input signals. The multiplied hybrid signals are applied to a difference amplifier to produce an output signal having a phase of predetermined value, independent of the instantaneous phase angles of the input signals.
    Type: Grant
    Filed: January 24, 1986
    Date of Patent: April 19, 1988
    Assignee: Enertec
    Inventor: Francisque Pion
  • Patent number: 4737800
    Abstract: Method and device to supply, from a source of alternating voltage (5a or 5b), a thermal printing head (3) comprising a number of heater units (3a, 3b).The device comprises a means (6a to 6d) of obtaining a rectified voltage, a means (8) of detecting the points when the alternating voltage or the rectified voltage change to zero and to produce a detection signal, a means (9) of synchronizing, with this detection signal, the heating of particular heater units and a means (7a, 7b) to absorb current.
    Type: Grant
    Filed: August 27, 1986
    Date of Patent: April 12, 1988
    Assignee: Enertec
    Inventors: Alain Caillol, Bernard Mouchet
  • Patent number: 4737620
    Abstract: In oder to improve fixing between an electronic module (140) and the body (120) of a credit card made of plastic material, a housing (122, 134) is provided in the card body with bumps (130, 132) projecting into the housing. The electronic module (140) is pressed against the bumps (130, 132) while being raised to the softening temperature of the material from which the bumps are made. The module is pressed until its contact tabs (148) are level with the face (126) of the body. Fixing is completed by causing a glue to penetrate by capilarity between the bottom (124), the insulating substrate (142) of the electronic module, and the bumps (130, 132). The invention is particularly applicable to prepaid credit cards.
    Type: Grant
    Filed: March 25, 1986
    Date of Patent: April 12, 1988
    Assignee: Flonic
    Inventors: Jean-Paul Mollet, Alain Rebjock, Jean-Louis Hayart
  • Patent number: 4737872
    Abstract: The connector comprises: a central shaft (7) at the periphery of which linear conductor elements are longitudinally disposed, at least in a zone of contact provided on the shaft; a group (22) of radially disposed resilient conductors having conductive ends bent substantially into conformity with a toroidal surface centred on and facing towards the shaft (7) at a certain level of the zone of contact; resilient toroidal couplings (27,28) centred on the shaft (7) and surrounding said ends; a clamp (22,29) for compressing said couplings radially so as to urge, at the time of said compression of the couplings, the conductive ends radially inwardly into pressure contact with the longitudinal conductor elements of the shaft. This connector forms part of a rotor carrying magnetic heads of apparatus (FIG. 2) for recording on and playing back magnetic tape.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: April 12, 1988
    Assignee: Enertec
    Inventor: Jean-Michel Delacou
  • Patent number: 4736644
    Abstract: The tooth depth of a gear meshing with a worm wheel, such as used in an electricity meter register, is adjusted by providing a mounting plate for holding the shaft of the toothed gear having a limited range of motion for adjusting the distance of the gear from the worm. The toothed gear has one end of its shaft attached to a mounting plate having a J-shaped cutout provided along one edge. The shaft of the gear is mounted to the "hook" portion of the cutout. Movement of the J-shaped cutout in a direction within the plane of the mounting plate causes a corresponding change in the distance of the toothed gear from the worm, thus enabling the mesh depth between the gear and the worm to be easily adjusted. The arrangement has no moving parts and can be formed using a simple die-stamping process.
    Type: Grant
    Filed: January 17, 1986
    Date of Patent: April 12, 1988
    Assignee: Schlumberger Canada Limited
    Inventor: Chesley R. Howell
  • Patent number: 4737106
    Abstract: In a weapons training simulator, laser radiation is output via optics (28) to simulate the firing of a round, and reflected radiation received via a conjugate path to assess the effectiveness of the shot. In the event of a miss a scan of the target area is required to provide fall of shot information. The scan is performed by controlled movement of the output faces of fibre optics (23, 24, 25) flexibly coupling to fixed sources (20, 21, 22) and of the input face of a fibre optic (200) flexibly coupling to a fixed detector (201). The problem of the bulk and inertia of prior art systems is improved by the remote location of lasers, drive and control, which may be conveniently separated for service or replacement without disturbing the optically aligned input and output faces. A further improvement is that vertically aligned multiple sources may be employed without undue weight penalty, yielding elevation information from a lateral scan.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: April 12, 1988
    Assignee: Schlumberger Electronics (U.K.) Limited
    Inventor: Richard W. Laciny
  • Patent number: 4736327
    Abstract: A digital instrument is represented by an analog-to-digital converter 17 controlled by a CPU 10 to effect measurements at regular intervals. The digital measurements are stored in a history file in a RAM 14, e.g. the most recent 100 or 500 measurements. The measurements are also linearly processed by rounding and range scaling to produce 100 reduced measurements in a second file in the RAM 14. This file is cyclically read out to a digital-to-analog converter 18 to produce a voltage on a terminal 22 for application to an oscilloscope which provides a display from which features of the measurements (e.g. a trend or a periodic component) can be seen. In order to allow for flyback and reset the 100 reduced measurements are held in a file of larger capacity (e.g. 130 or 150 measurements) which is cyclically read out. As the oldest of the 100 measurements is read a driver 19 provides a trigger pulse on a terminal 23 for the oscilloscope external trigger input.
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: April 5, 1988
    Assignee: Schlumberger Electronics (U.K.) Limited
    Inventor: Francis M. Power
  • Patent number: 4734671
    Abstract: A sensitive deflector beam having an integral deflectable element utilizes an immobilization pin and a limit pin to prevent damage to the deflectable element during fabrication and use. The immobilization pin is inserted through the beam and to the deflectable element to hold the element rigidly in place during fabrication. Thus, relatively rigorous operations such as polishing and circuit deposition may be accomplished without damage to the element.
    Type: Grant
    Filed: October 22, 1986
    Date of Patent: March 29, 1988
    Assignee: Solartron Electronics, Inc.
    Inventors: Walter H. Eisele, Peter C. Tack
  • Patent number: 4723113
    Abstract: A very high frequency harmonic generator utilizes a type III-V (e.g. GaAs) FET. An input signal is applied to the gate of the FET at a sufficient level to induce non-linear functioning of the FET. This causes an output signal to appear between the source and drain having frequency components of at least the tenth harmonic of the input signal. The device is particularly applicable to the generation of microwave signals.
    Type: Grant
    Filed: September 3, 1986
    Date of Patent: February 2, 1988
    Assignee: Enertec
    Inventor: Jean-Felicien Marcoux
  • Patent number: 4714189
    Abstract: A sensor for assessing conditions within a metallic high pressure boiler 10, has a sensitive tip section 12, which is insulated from the boiler by virtue of a ceramic spacing member 101. The joins between the member 101 and sensor body 15 and tip 12 respectively are subject to full boiler pressure. The present invention provides a pressure seal by virtue of forming a brazed seal between the parts by forming a ceramic component to be brazed in a ceramic of average gain size of substantially between 5 and 15 microns and of purity exceeding 99% with a maximum silica content of substantially 0.2%, introducing between components a eutectic of substantially the composition: 80% to 90% silver; 5% to 6% copper; less than 6% titantium; and sufficient in quantity to fill gap therebetween, and subjecting the components to a temperature in excess of eutectic liquids temperature while maintaining the components in a vacuum.
    Type: Grant
    Filed: March 26, 1986
    Date of Patent: December 22, 1987
    Assignee: Schlumberger Electronics (U.K.) Limited
    Inventor: Stuart J. Tovey
  • Patent number: 4713198
    Abstract: A plastic scintillator comprises a polymethylpentene thermoplastic material containing a fluorescent additive. This plastic scintillator material functions at high temperatures with excellent optical properties in the detection of neutrons. The plastic scintillator may also include an energy transfer compound, a wavelength shifter, a solubility enhancer for the polymethylpentene and a decolorizing agent.
    Type: Grant
    Filed: April 11, 1985
    Date of Patent: December 15, 1987
    Assignee: Sangamo Weston, Inc.
    Inventor: John J. Simonetti
  • Patent number: 4711117
    Abstract: In fluid level measurement apparatus a pressure vessel is tapped into a fluid container the fluid level in which is to be measured such that fluid level in the vessel is representative of fluid level in the container. A plurality of fluid detecting sensors are mounted in the vessel with unequal spacing to compensate for level errors due to density differences between the fluid in the vessel and container.
    Type: Grant
    Filed: May 6, 1985
    Date of Patent: December 8, 1987
    Assignee: Schlumberger Electronics, Inc.
    Inventor: Harry F. Cosser
  • Patent number: 4709583
    Abstract: A flow meter comprises electrodes (16, 18), induction windings (12, 14), a winding driver circuit (20), and a processor circuit (22). The winding excitation current is a combination of a current of period T.sub.1 and a current of period T.sub.2, where T.sub.2 >T.sub.1. The processor circuit (22) processes the voltage signal sent by the electrodes and generates intermediate measurement signals of periods T.sub.1 and T.sub.2. These signals are then used to generate a correction signal for removing the relaxation effect from the measurement signal S.
    Type: Grant
    Filed: October 28, 1986
    Date of Patent: December 1, 1987
    Assignee: Sereg
    Inventors: Thijlbert De Paepe, Gerard Crochet
  • Patent number: D293431
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: December 29, 1987
    Assignee: Sangamo Weston, Inc.
    Inventors: David N. Makinson, Karl W. Struck