Patents Represented by Attorney D. Schron

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  • Broad beam transducer
    Patent number: 4413331
    Abstract: A transducer made up of a plurality of piezoceramic tubes arranged in end to end relationship with elastomeric material between tubes. The tubes are poled and driven axially; however, the hoop mode of operation is utilized to obtain a fan-shaped beam extremely narrow in one direction and extremely broad in the direction perpendicular thereto. A suitable backing arrangement is provided for the transducer when mounted on a support body to prevent degradation of the beam pattern.
    Type: Grant
    Filed: April 26, 1976
    Date of Patent: November 1, 1983
    Assignee: Westinghouse Electric Corp.
    Inventors: Linwood M. Rowe, Jr., Dale D. Skinner, John H. Thompson
  • Method and apparatus for the automatic diagnosis of system malfunctions
    Patent number: 4402054
    Abstract: Diagnostic apparatus for monitoring a system subject to malfunctions. Estimates are obtained relating normal system operation to operating variables. Estimates are additionally obtained relating specific malfunctions to specific variables. The variables are combined in accordance with predetermined functions to get an indication of a particular malfunction. This indication is modified by a factor related to the normal operation of the system to yield a probability of the occurrence of the malfunction, and which probability is limited to a value less than 100%.
    Type: Grant
    Filed: October 15, 1980
    Date of Patent: August 30, 1983
    Assignee: Westinghouse Electric Corp.
    Inventors: Robert L. Osborne, Paul H. Haley, Stephen J. Jennings
  • Fluid control system
    Patent number: 4397334
    Abstract: Control valves govern the operation of a plurality of hydraulically-activated devices movable between extended and retracted positions. The control valves are interconnected to a plurality of control lines which carry hydraulic fluid and activation of a particular control valve will establish a certain hydraulic signal pressure pattern within the control lines indicative of a certain commanded position of one of the devices. A decoding section responsive to the signal pressure pattern allows for high pressure hydraulic flow to the selected device and in addition sets up a low pressure return path therefor. A significantly greater number of devices can be controlled with a relatively few control lines thereby reducing construction, maintenance and material costs.
    Type: Grant
    Filed: June 4, 1981
    Date of Patent: August 9, 1983
    Assignee: Westinghouse Electric Corp.
    Inventor: David M. Harrell
  • Method and apparatus for preventing the deposition of corrosive salts on rotor blades of steam turbines
    Patent number: 4386498
    Abstract: A turbine system which includes a reheater upstream from a low pressure turbine which is subject to corrosive salt depositions from the steam. Conductance probes are inserted at predetermined positions within the low pressure turbine and based on the conductance signals the reheat temperature or load is varied so as to move the corrosive salt deposition zone away from a rotating blade stage of the low pressure turbine.
    Type: Grant
    Filed: October 15, 1980
    Date of Patent: June 7, 1983
    Assignee: Westinghouse Electric Corp.
    Inventors: Pang-Kai Lee, William M. Hickam, William G. Steltz
  • Pseudo-synchronized data communication system
    Patent number: 4382287
    Abstract: A system wherein a plurality of remote stations, in response to a request from a primary terminal, will transmit requested data to the primary terminal and to a secondary terminal. The secondary terminal is operable to receive and process the data transmitted in synchronism with the requests from the primary, and without any synchronizing information between the primary and secondary terminals. This is accomplished with the provision of data processing means in the two terminals which have identical memory maps of the sequencing operation.
    Type: Grant
    Filed: July 15, 1980
    Date of Patent: May 3, 1983
    Assignee: Westinghouse Electric Corp.
    Inventors: Mark E. Ackman, Wayne L. Dufek, Charles C. McCarthy, Edward E. Kopicky
  • Method and apparatus for ultrasonic detection of near-surface discontinuities
    Patent number: 4380929
    Abstract: Near-surface discontinuities, or flaws, within a workpiece are determined by transmitting acoustic energy into the workpiece. If a discontinuity is present the acoustic energy will resonate in the section of the material between the discontinuity and the surface. Acoustic energy emerging from the section as a result of the resonating is detected and analyzed to determine this fundamental frequency, from which the half wavelength and depth of the discontinuity may be determined. The procedure is also applicable for determining the thickness of relatively thin sheets of material.
    Type: Grant
    Filed: June 30, 1981
    Date of Patent: April 26, 1983
    Assignee: Westinghouse Electric Corp.
    Inventors: Bruce J. Taszarek, Warren R. Junker
  • Position indication system
    Patent number: 4371496
    Abstract: A nuclear reactor control rod position system wherein the control rods are connected to drive rods movable within a group of detector coils. Bilateral switches are connected to the respective coils of the detectors and a control circuit sequentially provides an enabling control signal to the various groups of bilateral switches connected to the respective detectors so that the coils of each detector in turn are connected to a single signal processing circuit which may be located inside or outside the containment structure of the reactor.
    Type: Grant
    Filed: June 18, 1980
    Date of Patent: February 1, 1983
    Assignee: Westinghouse Electric Corp.
    Inventors: Charles A. Lawson, II, Wayne L. Dufek
  • Boiler feed pump turbine control system
    Patent number: 4368773
    Abstract: A boiler feed pump turbine system wherein the feed pump turbine speed is controlled by a signal locally generated by an operator up to a certain minimum speed and thereafter by a signal automatically commanded by a boiler feedwater control system. During operation within a certain speed range in which the signal from the boiler feedwater control system is controlling, a locally generated signal in the feedpump turbine control signal is caused to track the boiler control system signal so that in the event of failure thereof, the feed pump turbine may be controlled by the locally generated signal as opposed to reducing its speed to zero as would normally be dictated by the failed signal.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: January 18, 1983
    Assignee: Westinghouse Electric Corp.
    Inventor: Robert L. Frater
  • Steam turbine generator control system
    Patent number: 4368520
    Abstract: A turbine control system which includes dual controllers having microcomputer processing circuits and capable of transmitting and receiving digital information to and from a plurality of valve position control circuits, also including their own microcomputer circuitry for controlling turbine steam admission valves. An operator's panel provides for two levels of automatic control as well as a manual backup which is communicative directly with all of the valve position control circuits. Overspeed protection control as well as fast valving is provided by redundant speed control circuits.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: January 11, 1983
    Assignee: Westinghouse Electric Corp.
    Inventors: Eddie Y. Hwang, Andras I. Szabo, Louis G. Ottobre
  • Conductivity cell
    Patent number: 4357576
    Abstract: A conductivity cell wherein thin film or foil electrodes are supported in a case or holder and are separated by an electrically insulative spacer member. A small portion of each electrode together with an exposed surface of the spacer member forms a channel in which thin films of an electrolyte may be deposited from a measured environment and with the electrodes being connected to a conductivity circuit the conductance of the thin film may be measured. If the electrolyte and its concentration are known, the film thickness and deposition rate in the channel may be obtained.
    Type: Grant
    Filed: October 15, 1980
    Date of Patent: November 2, 1982
    Assignee: Westinghouse Electric Corp.
    Inventors: William M. Hickam, Pang-Kai Lee, William T. Lindsay, Jr.
  • Optical valve position sensor system
    Patent number: 4356397
    Abstract: A sensing mechanism for determining the open or closed condition of a valve member located at a remote location. First and second optical fiber sections are aligned with a rotatable light modulator between the sections. Rotational movement of the modulator is governed by movement of a portion of the valve such that the light transmitted through the modulator may be detected to provide an indication of valve condition.
    Type: Grant
    Filed: June 18, 1980
    Date of Patent: October 26, 1982
    Assignee: Westinghouse Electric Corp.
    Inventors: Bruce N. Lenderking, Donald P. Garrett
  • Two wire optical data communication system
    Patent number: 4320388
    Abstract: A control station in data communication with a plurality of remote stations, each remote station including a receiving opto-isolator device and a transmitting opto-isolator device, each having an LED and an associated light detector. The LED of the receiving opto-isolator is in series circuit arrangement with the detector of the transmitting opto-isolator. A single remote station may be provided or a plurality of remote stations either in series or parallel circuit configuration. If in series configuration, a bypass circuit may be provided in the event of a failure of a particular remote station.
    Type: Grant
    Filed: July 15, 1980
    Date of Patent: March 16, 1982
    Assignee: Westinghouse Electric Corp.
    Inventors: Charles C. McCarthy, Mark E. Ackman, Wayne L. Dufek, Edward E. Kopicky
  • Passive fiber optic sonar system
    Patent number: 4311391
    Abstract: A fiber optic sonar system wherein first and second optical fibers are wound on a common mandrel and provided with a light energy beam. An acoustic signal differentially varies the index of refraction of the optical fibers to result in an interference pattern dependent upon the frequency of the received acoustic signal or signals. The apparatus is operable to form one or more hollow conical receiver beams.
    Type: Grant
    Filed: December 27, 1979
    Date of Patent: January 19, 1982
    Assignee: Westinghouse Electric Corp.
    Inventor: George A. Gilmour
  • Image motion compensation for a TV sensor system
    Patent number: 4303945
    Abstract: An image motion compensation arrangement for a TV sensor system having an image intensifier section and a camera tube section, and which moves at a velocity V over a target area at an altitude H. An electron image of the viewed scene is accelerated between electrodes in the image intensifier section and a deflection coil is added to deflect this electron image. The coil is provided with a signal such that the deflection velocity is proportional to the ratio of V/H. With automatic light control provided, the deflection signal is also made a function of a control signal which controls a high voltage power supply to the accelerating electrodes.
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: December 1, 1981
    Assignee: Westinghouse Electric Corp.
    Inventors: James M. Fawcett, William F. Parrish
  • Inductive coupler
    Patent number: 4303902
    Abstract: A coaxial inductive coupler having an inner magnetic core member and a surrounding outer magnetic core member each having respective windings. The inner magnetic core is operatively carried by an inner support assembly which is additionally connected to an outer protective shell. The outer core is disposed within a cylinder having at the end thereof a large guide member for facilitating insertion into the outer protective shell. A locking mechanism is provided to insure positive coupling and easy release.
    Type: Grant
    Filed: August 31, 1979
    Date of Patent: December 1, 1981
    Assignee: Westinghouse Electric Corp.
    Inventors: Laban E. Lesster, Everett W. Opdahl
  • Acoustic flowmeter with Reynolds number compensation
    Patent number: 4300400
    Abstract: An acoustic flowmeter wherein pulses of acoustic energy are transmitted between upstream and downstream transducers through the fluid under measurement and wherein the arithmetic computation of velocity based upon the difference in time measurement of the oppositely-directed pulses is modified by predetermined factors to automatically compensate for errors caused by a Reynolds number change due to flow velocity change.
    Type: Grant
    Filed: April 5, 1979
    Date of Patent: November 17, 1981
    Assignee: Westinghouse Electric Corp.
    Inventors: John M. Bistrian, Jr., Lawrence G. Wright
  • Wide angle acoustic camera
    Patent number: 4300215
    Abstract: A conical acoustic lens in conjunction with a ring of transducer elements located on a circle disposed above the lens is utilized to form a plurality of radial beams for imaging a target area beneath the apparatus. The transducers may occupy the fully 360.degree. of the circle or a sector less than 360.degree. in which the case the apparatus may be rotated to give full 360.degree. coverage.
    Type: Grant
    Filed: June 6, 1980
    Date of Patent: November 10, 1981
    Assignee: Westinghouse Electric Corp.
    Inventor: Charles H. Jones
  • Magnetometer apparatus with detector immobilized in wax
    Patent number: 4292590
    Abstract: A magnetometer assembly wherein a magnetometer detector suspended from a gimbal is immersed in a wax so as to immobilize the detector. Desired gimbal operation is achieved by heating the wax in the vicinity of the detector.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: September 29, 1981
    Assignee: Westinghouse Electric Corp.
    Inventor: James H. Wilson
  • Magnetostatic wave signal-to-noise-enhancer
    Patent number: 4283692
    Abstract: A magnetostatic wave device having a microstrip transmission line in conjunction with a YIG thin film biased for magnetostatic wave operation at a level where relatively lower power input microwave signals are highly attenuated up to a critical point past which the relative attenuation is greatly reduced. Such devices may be utilized as signal-to-noise enhancers in microwave circuits such as frequency memory loops.
    Type: Grant
    Filed: July 27, 1979
    Date of Patent: August 11, 1981
    Assignee: Westinghouse Electric Corp.
    Inventor: John D. Adam
  • Fluid current meter
    Patent number: RE30900
    Abstract: Two pairs of acoustic transducers are provided for obtaining fluid current velocity measurements. The pairs of transducers are mounted in a supporting ring which introduces a controlled source of error in the measurement process, the configuration however resulting in a nearly constant error regardless of flow direction. The constant error introduced by the ring supporting structure may be easily corrected by a scaling factor in the signal processing circuitry utilized to compute fluid velocity.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: April 13, 1982
    Assignee: Westinghouse Electric Corp.
    Inventor: Hsing-Hua Shih