Patents Represented by Attorney L. P. Johns

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  • Method of making a cellulose-free transformer coil
    Patent number: 4406056
    Abstract: A coil structure for cellulose-free transformer coils characterized by at least three helically wound layers disposed in a reversal pattern with wedge-shaped resinous insulators between each layer.
    Type: Grant
    Filed: October 2, 1981
    Date of Patent: September 27, 1983
    Assignee: Westinghouse Electric Corp.
    Inventors: Richard D. Buckley, Edward L. Boyd, Betty J. Palmer
  • Method of making a cellulose-free transformer coils
    Patent number: 4403404
    Abstract: A coil structure for cellulose-free transformer coils characterized by a plurality of helically wound layers disposed in a zig-zag pattern with wedge-shaped resinous insulators between each layer.
    Type: Grant
    Filed: October 2, 1981
    Date of Patent: September 13, 1983
    Assignee: Westinghouse Electric Corp.
    Inventor: Dean C. Westervelt
  • Transformer with impedance matching means
    Patent number: 4400675
    Abstract: A transformer characterized by groups of low voltage and high voltage windings inductively related to a core member, and a shunt of magnetizable microlaminations disposed between the low and high voltage windings, whereby the shunts independently adjust the transformer impedance.
    Type: Grant
    Filed: November 5, 1981
    Date of Patent: August 23, 1983
    Assignee: Westinghouse Electric Corp.
    Inventor: Michael W. Thomas
  • Condenser-type electrical bushing with central electrode aligning wedging blocks
    Patent number: 4392015
    Abstract: The present invention is a condenser-type electrical bushing having a mounting flange, an upper weather casing connected to the mounting flange, a central electrode and a lower casing, both supported by the upper weather casing. A condenser is wound about the central electrode. The bushing further has a plurality of wedging blocks which are rigidly connected to the condenser and located above the mounting flange such that upon mechanical failure of the upper weather casing the central electrode and the condenser are prevented from falling into the electrical apparatus.
    Type: Grant
    Filed: December 4, 1981
    Date of Patent: July 5, 1983
    Assignee: Westinghouse Electric Corp.
    Inventors: Robert W. Runnels, Loren B. Wagenaar, Louis E. Luke, Thomas P. Bresnahan
  • Automatic tensioning control for winding stator coils
    Patent number: 4381852
    Abstract: An automatic tensioning control for winding stator coils characterized by a looper for winding lengths of wire into loops for stator coils, a reel of wire for paying off wire to the looper under controlled conditions, and tension sensing means between the reel and looper for measuring the tension on the wire and for providing an indicating signal for applying a restraining torque on the reel.
    Type: Grant
    Filed: May 6, 1982
    Date of Patent: May 3, 1983
    Assignee: Westinghouse Electric Corp.
    Inventors: Herbert E. Ferree, Dirk J. Boomgaard
  • Transformer tank panel neutral connection with reverse current shielding conductors
    Patent number: 4375627
    Abstract: An electric transformer characterized by a transformer tank having an opening with a conducting closure panel in the opening and electrically insulated from the tank, a plurality of first and second conductors of opposite polarities leading from the transformer coil-core assembly with the conductors of opposite polarity comprising forward and return paths. A conducting tubular structure mounted on and extending inwardly from the inside surface of the panel and the return path conductors being connected to the corresponding tubular structures while the forward path conductors extend through the tubular structure and the panel to an external source.
    Type: Grant
    Filed: June 26, 1981
    Date of Patent: March 1, 1983
    Assignee: Westinghouse Electric Corp.
    Inventors: Irvin L. Hansen, Randall W. Haack
  • Shielding device for electrical inductive structure
    Patent number: 4370512
    Abstract: Electrical inductive apparatus for minimizing power losses in heating of a tank of an electrical inductive structure due to a magnetic field characterized by a tank having a metal wall including openings therein, electrical inductive apparatus within the tank and having terminals thereon, a bushing extending through each opening, conductor means extending through each bushing and connected to the terminals, an electrically conductive shielding member within the tank and disposed between the openings, an electrically conductive member externally of the tank, the shielding member being electrically connected to the electrically conductive member through the openings, whereby the tank is shielded from magnetic fields generated by load currents flowing through the conductor means to minimize power losses and heating of the tank wall.
    Type: Grant
    Filed: February 23, 1981
    Date of Patent: January 25, 1983
    Assignee: Westinghouse Electric Corp.
    Inventor: Michael W. Thomas
  • Amorphous metal core laminations
    Patent number: 4364020
    Abstract: A magnetic core for use with electrical windings characterized by a plurality of groups of butt-jointed laminations of high permeability, amorphous material with each lamination group having a layer of protective material surrounding the outermost lamination and comprising a strip of material having a melting point above the temperature range of from about 340.degree. C. to 420.degree. C., whereby each lamination group is protected from damage during handling.
    Type: Grant
    Filed: February 6, 1981
    Date of Patent: December 14, 1982
    Assignee: Westinghouse Electric Corp.
    Inventors: Kou C. Lin, Belvin B. Ellis
  • Power circuit breaker with opening and closing mechanisms
    Patent number: 4358648
    Abstract: A circuit breaker characterized by a pair of separable contacts, operating means for opening the contacts and comprising a cylinder and piston mechanism, closing means for closing the contacts and comprising a second cylinder and piston assembly operatively connected to the contacts.
    Type: Grant
    Filed: July 18, 1980
    Date of Patent: November 9, 1982
    Assignee: Westinghouse Electric Corp.
    Inventors: Ronald W. Crookston, Hayes O. Dakin, Jr.
  • Combination static plate and liquid distribution manifold for electrical inductive apparatus
    Patent number: 4352078
    Abstract: A static plate and liquid distribution manifold construction for vertical coils of electrical inductive apparatus, characterized by a plurality of vertically stacked pancake coils, manifold means comprising an inner rigid core of dielectric material, a coating of metal foil on the core, and a flexible bladder enclosing the rigid core and metal foil structure above the plurality of stacked coils, a plurality of radially spaced spacers between the coils and between the top coil and the manifold means, pressure means for compressing the assembly of the manifold means, the spacers, and the coils, an inlet means for introducing a coolant into the manifold bladder whereby the coolant fluid after leaving the manifold is fed by gravity downwardly over the several stacked coils.
    Type: Grant
    Filed: February 6, 1981
    Date of Patent: September 28, 1982
    Assignee: Electric Power Research Institute, Inc.
    Inventor: Curtis L. Moore
  • Ultrasonic fluid-atomizing cooled power transformer
    Patent number: 4350838
    Abstract: A vapor-cooled power transformer characterized by a transformer within a sealed housing, and means for applying ultrasonic vibrations to a dielectric liquid within the housing in order to vaporize the fluid and to apply it to the exposed surfaces of the transformer.
    Type: Grant
    Filed: June 27, 1980
    Date of Patent: September 21, 1982
    Assignee: Electric Power Research Institute, Inc.
    Inventor: Ronald T. Harrold
  • Circuit-interrupter having a high-frequency transverse magnetic field to assist in arc interruption
    Patent number: 4346273
    Abstract: An improved circuit-interrupter is provided having a high-frequency transverse magnetic field to assist in the very rapid interruption of the arc, which is established during operation of the device, said magnetic field being preferably of the three-phase type and rotating, having three separate field coils energized by a transitory, high-frequency power source to result in an interaction between the arc column and the transversely-oriented, high-frequency, multi-phase magnetic field of transitory duration to thereby afford a more intimate interaction with the arc-extinguishing medium, which may be gaseous, for example.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: August 24, 1982
    Assignee: Westinghouse Electric Corp.
    Inventor: Thomas N. Meyer
  • Flexible bushing connector
    Patent number: 4345804
    Abstract: A high power flexible connector has a first conductive member adapted for connection to a bushing and a second conductive member adapted for connection to a winding. A plurality of flexible conductors connect the first member to the second member. Mechanically, the conductors provide for independent movement of the bushing with respect to the winding. Electrically, the cables provide a plurality of current paths and produce an electric field when carrying a current. The conductors are arranged such that the induced electric field is uniform.
    Type: Grant
    Filed: July 1, 1980
    Date of Patent: August 24, 1982
    Assignee: Westinghouse Electric Corp.
    Inventor: Thomas J. Lanoue
  • Circuit breaker with stored energy toggle-lock structure
    Patent number: 4336516
    Abstract: A circuit breaker characterized by a toggle lock means for holding toggle springs in a charged condition ready for closing a circuit through the circuit breaker contacts when necessary.
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: June 22, 1982
    Assignee: Westinghouse Electric Corp.
    Inventors: Walter V. Bratkowski, John A. Wafer, James P. Ellsworth
  • Beveled latch for circuit breaker cross-reference to related applications
    Patent number: 4324963
    Abstract: A circuit breaker characterized by a plurality of pole-units adapted for interrupting multi-phase circuits having an operating mechanism releasable to effect simultaneous opening of the multi-phase circuits, at least two latch levers biased against a latch member with each latch lever having a beveled surface to effect simultaneous release of both levers.
    Type: Grant
    Filed: May 21, 1980
    Date of Patent: April 13, 1982
    Assignee: Westinghouse Electric Corp.
    Inventors: Alfred E. Maier, Louis N. Ricci
  • Dielectric gas-vapor and vapor-vapor mixtures
    Patent number: 4320035
    Abstract: A dielectric fluid composition with high electrical strength characterized by a gas mixed with the vapor from a first fluid having a high vapor pressure at a low temperature and the vapor from a second fluid having a low vapor pressure at a low temperature to effect a mixture having a higher electrical strength than any component thereof over a temperature range from about -20.degree. C. to -40.degree. C. to about +120.degree. C. to +140.degree. C., with the vapor pressure of the mixture at the highest temperature being about one to two atmospheres. Also, the mixing of low and high cost liquids to obtain a low cost liquid with a vapor with an electrical strength equivalent or better than the best vapor over a wide temperature range.
    Type: Grant
    Filed: February 4, 1981
    Date of Patent: March 16, 1982
    Assignee: Westinghouse Electric Corp.
    Inventor: Ronald T. Harrold
  • Drawout circuit interrupter
    Patent number: 4315115
    Abstract: A drawout circuit interrupter comprising a multipole circuit breaker movable between connected and disconnected positions of incoming and outgoing terminals with corresponding conductor terminals on spaced bus bars, at least one threaded bolt on the circuit breaker engageable with an aperture of a supporting frame, and the bolt having means for holding the bolt in alignment with the aperture as the circuit breaker moves into the connected position.
    Type: Grant
    Filed: February 19, 1980
    Date of Patent: February 9, 1982
    Assignee: Westinghouse Electric Corp.
    Inventor: James O. Rexroad
  • Circuit interrupter trip unit
    Patent number: 4313098
    Abstract: A circuit interrupter trip unit characterized by a magnetic sensing and tripping device having improved means for adjusting between maximum and minimum air gaps between a magnet and armature for specific trip currents.
    Type: Grant
    Filed: January 16, 1980
    Date of Patent: January 26, 1982
    Assignee: Westinghouse Electric Corp.
    Inventor: John G. Salvati
  • Dual arcing contacts for circuit breaker
    Patent number: 4309580
    Abstract: A circuit interrupter characterized by a stationary contact and a movable contact which are operable along a predetermined path between open and closed positions to establish an arc, an arc chute for extinguishing the arc, a pair of spaced apart conductors extending from the movable contact to the arc chute which conductors provide parallel current paths for conducting an arc away from the contacts and into the arc chute.
    Type: Grant
    Filed: June 7, 1979
    Date of Patent: January 5, 1982
    Assignee: Westinghouse Electric Corp.
    Inventors: John A. Wafer, Louis N. Ricci, Alfred E. Maier
  • Circuit breaker mechanism
    Patent number: 4302740
    Abstract: A circuit interrupter mechanism comprising an overcenter toggle linkage and a releasable toggle latch means for latching the linkage in a partially closed position.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: November 24, 1981
    Assignee: Westinghouse Electric Corp.
    Inventors: Alfred E. Maier, Louis N. Ricci, Charles E. Haugh