Patents Represented by Attorney G. H. Telfer

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  • Dynamoelectric machine with end turn support assembly having fasteners with locking devices
    Patent number: 4501985
    Abstract: A locking device on the end of a threaded fastener in an end winding support assembly is provided by a wrapped and tied cord on the stud end outside the nut with a coating of resinous material over the cord and a flat surface area on the stud to prevent turning of the assembled cord.
    Type: Grant
    Filed: May 1, 1984
    Date of Patent: February 26, 1985
    Assignee: Westinghouse Electric Corp.
    Inventors: Diane P. Dobson, Michael J. Farrell, Raymond S. Lutz
  • Anti-rotation mass support system particularly for missile support
    Patent number: 4492143
    Abstract: An anti-rotational mass support system such as for a missile comprises, in a mechanically parallel configuration, a bellows centrally located under the mass for permitting a degree of axial, tilt and radial motion while providing substantial stiffness against rotational motion and an elastomer shock isolator.
    Type: Grant
    Filed: May 31, 1983
    Date of Patent: January 8, 1985
    Assignee: Westinghouse Electric Corp.
    Inventor: Philip G. Ruhle
  • Thrust bearing starter apparatus
    Patent number: 4492481
    Abstract: A thrust bearing assembly is provided which reduces initial axial loading on a shaft's thrust bearing in order to correspondingly reduce the required torque for rotational start-up. The shaft's bearing runner is forced in a direction away from its associated thrust bearing during initial start-up procedures by a suitable means for imparting a force on the bearing runner in a direction away from the thrust bearing. The force is provided by a piston and cylinder combination, in the preferred embodiment, which provides an axial force in a direction opposing the initial shaft loading force. An anti-friction guide bearing is used to transfer this force from the piston to the shaft and, in turn, to the bearing runner.
    Type: Grant
    Filed: October 28, 1982
    Date of Patent: January 8, 1985
    Assignee: Westinghouse Electric Corp.
    Inventor: David J. Shore
  • Coupling for cryogenic liquid transfer into rotating apparatus
    Patent number: 4488406
    Abstract: A liquid coolant transfer device that has a stationary tube fit within a rotating conduit and a threaded throwback seal on the surface of the rotating element is further provided with a seal and bearing device in the form of a washer affixed to the conduit at the end of the threaded insert and extending across the gap between the rotating and stationary tubes for preventing liquid coolant flow therethrough even during severe flooding caused by faults within the electrical machine with which it is connected.
    Type: Grant
    Filed: January 16, 1984
    Date of Patent: December 18, 1984
    Assignee: Electric Power Research Institute, Inc.
    Inventor: Phillip W. Eckels
  • Dynamoelectric machine with stator coil end turn support system
    Patent number: 4488079
    Abstract: A large turbine generator is provided with a stator end winding assembly that includes a large conical member outside the coils which is joined by banding with adjusting rings radially inside the coils, with an adjusting means for each banding location that includes a wedge extending through an aperture in a portion of the adjusting ring that extends away from the coil and having a fastener that is joined to the wedge so that upon the tightening of the fastener, the wedge will be forced in the axial direction bearing against the banding and hence tightening it; and in addition, the conical member is provided with projections serving as torque splines that fit within apertures of the core so as to prevent its rotational movement in operation.
    Type: Grant
    Filed: March 30, 1984
    Date of Patent: December 11, 1984
    Assignee: Westinghouse Electric Corp.
    Inventors: George F. Dailey, Homer W. Luzader
  • Apparatus and method for making a laminated core
    Patent number: 4486279
    Abstract: An apparatus and means for removing slivers and burrs from machined laminated components utilizes a salt solution, such as sodium nitrate, as the electrolyte which flows between a cathode and the laminated member which is connected to the positive terminal of an electrical power supply. The electrolyte is pumped into the gap between the cathode and laminated component and an electrical current flows between the laminated member and the cathode, removing metal which is deplated or released into the stream of electrolyte. The use of a salt solution, as opposed to an acidic solution, for the electrolyte fluid reduces the need for cleaning and neutralizing the acid remaining on the workpiece and, furthermore, reduces the potential hazards normally associated with the use of acids.
    Type: Grant
    Filed: May 12, 1983
    Date of Patent: December 4, 1984
    Assignee: Westinghouse Electric Corp.
    Inventors: Robert E. Fromson, Maria E. Skutch, Charles S. Nunamaker, Francis A. Scheda
  • Superconducting rotor with end turn region intermittent support and cooling assembly
    Patent number: 4486676
    Abstract: The end turn region of a superconducting rotor is provided with end region support blocks that together provide channels for coil location. Within the support block channels there are intermittent supports in the form of insulating spacers extending radially both to the front and to the rear of the coil and also bottom spacers, with sheets of side insulation between the front and rear spacers and the adjacent support blocks. The intermittent supports provide access of coolant to the superconductor. They may also be formed in a manner to tilt the end region toward the pole piece for better mechanical support. A top insulating spacer is provided with cooling channels and is utilized with banding to provide secure compressive support for the end windings. Apertures in the support blocks and grooves in the spacers provide collant circulation.
    Type: Grant
    Filed: January 16, 1984
    Date of Patent: December 4, 1984
    Assignee: Electric Power Research Institute, Inc.
    Inventors: William G. Moore, Phillip W. Eckels, Michael R. Jugan
  • Electrical protection equipment with digital integration apparatus for firing pulse initiation
    Patent number: 4482930
    Abstract: A non-linear resistor assembly protecting equipment such as series capacitors is itself protected by a bypass spark gap, the firing of which is produced by a digitized pulse train, each pulse of which indicates a known increment of energy input to the varistors and is processed by counters and logic gates to achieve an initiating firing pulse upon the occurrence of a predetermined number of pulses indicating the energy input has reached predetermined limits within a given time period. The initial firing pulse is further processed through stages including semiconductor device switching, trigger spark gap firing and energy dumping from an energy storage capacitor into the elements of the main bypass spark gap.
    Type: Grant
    Filed: June 11, 1982
    Date of Patent: November 13, 1984
    Assignee: Westinghouse Electric Corp.
    Inventors: Charles A. Peterson, Louis C. Grove, Jr., Robert C. Miller, Robert M. Oates
  • Electric cutout
    Patent number: 4480245
    Abstract: An electrical cutout having a support insulator with a line terminal and fuse support assembly at each end, each of which includes a line terminal, a fuse support element and means for their support on the insulator and also includes a contact element more highly conductive than the other elements of the assembly that extends from line terminal to the fuse support element for a continuous highly conductive path therebetween free of mechanical joints.
    Type: Grant
    Filed: January 28, 1983
    Date of Patent: October 30, 1984
    Assignee: Westinghouse Electric Corp.
    Inventors: Charles H. Carothers, John E. Garau, Thomas P. Basa
  • Modular power system reactor
    Patent number: 4477792
    Abstract: The present invention discloses a modular reactor that increases the inductance per axial length by winding a conductor circumferentially about a central axis in a manner which results in radially extending columns which are sequentially wound in alternating radial order. The modules are constructed to allow them to be combined in either radial or axial juxtaposition and electrically connected either in series or in parallel.
    Type: Grant
    Filed: January 29, 1982
    Date of Patent: October 16, 1984
    Assignee: Westinghouse Electric Corp.
    Inventors: Thomas H. Putman, Andrew S. Sweetana, Jr., Frederick J. Brown
  • Multi-section power capacitor with all-film dielectric
    Patent number: 4467397
    Abstract: An all-film power capacitor in which the sections have extended electrode foils and relatively large area edge connections of deposited metal and the space factor of the section winding is relatively high.
    Type: Grant
    Filed: August 18, 1981
    Date of Patent: August 21, 1984
    Assignee: Westinghouse Electric Corp.
    Inventors: Peter H. Thiel, George E. Mercier, Michael D. Pruett
  • Brushless dynamoelectric machine with improved control wheel assembly
    Patent number: 4456843
    Abstract: A brushless dynamoelectric machine is provided with a molded insulating control wheel having a rim on whose inner surface the rectifiers and other components of the starting control circuitry are directly mounted and an outer surface on which a wire-wound starting resistor can be provided with provision for good support and adequate ventilation of the resistor so as to achieve a more compact and less expensive to assemble control wheel.
    Type: Grant
    Filed: May 31, 1983
    Date of Patent: June 26, 1984
    Assignee: Westinghouse Electric Corp.
    Inventors: Carl J. Heyne, Donald T. Hackworth
  • Shaft rounding apparatus
    Patent number: 4456516
    Abstract: An apparatus is provided which machines a generally cylindrical shaft in such a way so as to improve its roundness. A bracket is shaped to be slidably associated with the shaft in a two point contact. The bracket has a measuring means attached to it which measures the distance between a portion of the shaft's surface and a chordal line drawn between the two points of contact between the bracket and the shaft. Also provided is a means for electrochemically removing material from the surface of the shaft in response to a signal received from the measuring means which is amplified prior to being transmitted to a cathode portion of the electrochemical machining apparatus. Variations of the roundness machining apparatus incorporate placements of the cathode at various arcuate distances from the measuring means.
    Type: Grant
    Filed: May 12, 1983
    Date of Patent: June 26, 1984
    Assignee: Westinghouse Electric Corp.
    Inventor: Alfred C. Schaffner
  • Ground fault receptacle with arrangement for protecting internal electronics
    Patent number: 4442470
    Abstract: A third pair of contacts, in addition to main power contacts, is provided that includes a conductive path through the latch member holding the power contacts in closed position and the latch member, being responsive to movement of the solenoid plunger operated from the trip coil, is the first of the three pairs of contacts to open upon a trip of the unit and is the first to be closed upon a resetting by manual force on the reset button.
    Type: Grant
    Filed: September 10, 1982
    Date of Patent: April 10, 1984
    Assignee: Westinghouse Electric Corp.
    Inventor: John J. Misencik
  • Multi-section power capacitor with internal fusing arrangement
    Patent number: 4442473
    Abstract: A power capacitor with a plurality of section windings stacked within a housing is provided with an interconnection and fusing arrangement in which insulative spacer elements extending from between adjacent sections support a common electrical bus and an insulative locater element. Fuse wires attached to ends of the section windings extend around an edge of the locater element to the bus and are maintained thereby in spaced relation to avoid interaction between neighboring fuses when one clears.
    Type: Grant
    Filed: July 13, 1982
    Date of Patent: April 10, 1984
    Assignee: Westinghouse Electric Corp.
    Inventors: Barry L. Holtzman, George E. Mercier
  • Current transformer for turbine generators
    Patent number: 4437083
    Abstract: A mounting device is disclosed which provides mechanical support and electrical insulation for a current transformer used in monitoring radio frequency signals in the neutral lead of a dynamoelectric machine. By encapsulating the current transformer in a rigid insulative apparatus with a central conductor passing therethrough, the transformer can be placed proximate the neutral bus of the dynamoelectric machine to avoid attenuation of the radio frequency signals.
    Type: Grant
    Filed: January 19, 1982
    Date of Patent: March 13, 1984
    Assignee: Electric Power Research Institute, Inc.
    Inventor: Franklin T. Emery
  • Brushless excitation system with a holding current resistor
    Patent number: 4422028
    Abstract: A brushless excitation system for a synchronous motor with a holding current resistor connected across the motor field winding to insure turning on of a semiconductor excitation control switch due to a gating pulse of limited duration.
    Type: Grant
    Filed: May 12, 1981
    Date of Patent: December 20, 1983
    Assignee: Westinghouse Electric Corp.
    Inventors: Gurney L. Godwin, Alvin M. Vance
  • Dynamoelectric machines for multiples of three phases with unbalanced fractional-slot windings
    Patent number: 4409507
    Abstract: A winding technique for multiphase machines is presented that utilizes a core of Q slots and P poles for M phases where Q/M is an integer but the number of slots per phase per pole Q/M/P is a non-integer expressible as a fraction N/D reduced of common factors and M and D have a common factor of at least two. Fractional-slot, nearly but not quite balanced, windings are provided by providing a distant coil grouping for D poles in which the number of coils in the coil groups for the D poles equals N for an individual phase and the pattern is repeated for the additional poles to provide the total of P pole windings. The near balancing of the windings succeeds in achieving sufficient voltage balancing and low torque harmonics for successful operation and is advantageous for avoiding a need to provide additional core designs.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: October 11, 1983
    Assignee: Westinghouse Electric Corp.
    Inventor: Gurney L. Godwin
  • Ground fault circuit interrupter with a unified test and reset switch mechanism
    Patent number: 4409574
    Abstract: The mechanism is operable by a single test/reset push button whose initial travel from a normal operating position causes closing of test circuit contacts while power contacts are engaged. Upon an actual or test trip actuating the trip solenoid of the interrupter, a latch member releases a member holding movable power contacts and also extends the push button out due to spring action to indicate the occurrence of the trip. For resetting, the same button is again pushed to reengage the power contacts in a closed position after which release of the button returns it to its normal operating position in which the mechanism is latched.
    Type: Grant
    Filed: January 21, 1982
    Date of Patent: October 11, 1983
    Assignee: Westinghouse Electric Corp.
    Inventors: John J. Misencik, Alden K. Clements
  • Motor module cover
    Patent number: D275478
    Type: Grant
    Filed: April 16, 1982
    Date of Patent: September 11, 1984
    Assignee: Westinghouse Electric Corp.
    Inventor: Dana J. Griggs