Patents Represented by Attorney L. P. Johns

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  • Puffer circuit breaker
    Patent number: 4199671
    Abstract: A puffer circuit breaker characterized by adjustable wall means for regulating the pressure of an arc-extinguishing gas between separating contacts.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: April 22, 1980
    Assignee: Westinghouse Electric Corp.
    Inventor: Howard C. Ludwig
  • Magnetic contactor with an adjustable latch release
    Patent number: 4185259
    Abstract: An electromagnetic contactor characterized by stationary and movable contacts operable between open and closed positions by an armature of an electromagnet which is movable between energized and deenergized positions, and an adjustable latch for latching the armature in the energized position to hold the contacts in the closed position until intentionally released.
    Type: Grant
    Filed: January 19, 1978
    Date of Patent: January 22, 1980
    Assignee: Westinghouse Electric Corp.
    Inventor: Arthur G. Fovargue
  • Compressed-gas circuit interrupter having insulated contacts
    Patent number: 4181837
    Abstract: A compressed-gas circuit interrupter characterized by at least one pair of separable contacts, each contact being tubular and having a tubular insulating liner on the inner surface thereof, each liner being recessed from the open end of the contact to provide an unlined tubular surface end portion, each liner having a restrictive cross-sectional area for maximum gas pressure gradient, and gas supply means for directing a flow of compressed gas into the tubular contacts when the contacts are opened to effect elongation and extinction of an arc created upon separation of the contacts.
    Type: Grant
    Filed: March 9, 1978
    Date of Patent: January 1, 1980
    Assignee: Westinghouse Electric Corp.
    Inventor: Thomas E. Browne, Jr.
  • Vertical bus bars for motor control center
    Patent number: 4180846
    Abstract: Vertical bus bars for motor control centers characterized by elongated metal conductors having a Zee-shape cross section for use in an upright cabinet type of motor control center in which electrical connection is made by plugging apparatus onto the bus bars at any point in a vertical plane, either from the front or the rear of the bus bars without impediment. Bolted connections may also be made from either the front or the rear of the bus bars. Finally, the Zee-shaped bus bars are inherently strong enough to withstand electromechanical forces that occur with ground faults of the order of 100,000 rms symmetrical amperes.
    Type: Grant
    Filed: May 9, 1977
    Date of Patent: December 25, 1979
    Assignee: Westinghouse Electric Corp.
    Inventors: John R. Wilson, Jerome C. Wolski
  • Control center with bus bar insulators
    Patent number: 4180845
    Abstract: A control center characterized by vertical bus bars supported by dielectric insulators which are disposed in vertically spaced pairs along the bus bars and which are molded with a configuration to accommodate bus bars of various shapes and sizes.
    Type: Grant
    Filed: September 9, 1977
    Date of Patent: December 25, 1979
    Assignee: Westinghouse Electric Corp.
    Inventors: Sadiq A. Shariff, Brij M. Bharteey, Neal E. Rowe
  • Control center with insulated bus bars
    Patent number: 4178624
    Abstract: A control center with insulated bus bars characterized by a cabinet having a plurality of spaced vertical bus bars, each bus bar comprising an intermediate portion and a leg extending toward the front side of the cabinet and another leg extending toward the back side of the cabinet, a barrier encasing the bus bars and being substantially coextensive therewith, the barrier and the bus bars being in complete surface-to-surface contact with the bus bars without air space between them, the barrier having spaced openings for exposure of the legs of the bus bar for connection by detachable conductor members of a circuit interrupter, and the barriers also having breakaway surface portions for exposure of the intermediate portion of a bus bar to provide access for connection of a conductor to the bus bar.
    Type: Grant
    Filed: May 2, 1977
    Date of Patent: December 11, 1979
    Assignee: Westinghouse Electric Corp.
    Inventors: John R. Wilson, Neal E. Rowe, Brij M. Bharteey
  • Convertible selector switch
    Patent number: 4175221
    Abstract: A selector switch for use as a pushbutton and rotary switch characterized by a rotatable switch actuator and at least two switch structures, the actuator having a shaft on which a handle is detachably mounted for operation in a plurality of modes to operate the switch structures in different combinations of open and closed conditions, the handle being detachably mounted on the shaft for rotating the cam through one limited sector thereof, and the handle being repositionable on the shaft for rotation through another limited sector thereof.
    Type: Grant
    Filed: December 7, 1977
    Date of Patent: November 20, 1979
    Assignee: Westinghouse Electric Corp.
    Inventor: Walter J. Kellogg
  • Convertible selector switch
    Patent number: 4175220
    Abstract: A rotary selector switch characterized by a rotatable switch actuator and at least two switch structures, the actuator having a shaft on which a handle is detachably mounted for operation in a plurality of modes to operate the switch structures in different combinations of open and closed conditions, the handle being detachably mounted on the shaft for rotating a cam through one limited sector thereof, the handle being repositionable on the shaft for rotation through another limited sector thereof, and the handle being rotatable between a pair of spaced ribs on the switch housing.
    Type: Grant
    Filed: December 7, 1977
    Date of Patent: November 20, 1979
    Assignee: Westinghouse Electric Corp.
    Inventors: Robert J. Johnston, Stephen G. Layciak, Stephen S. Dobrosielski
  • Circuit breaker with thrust transmitting spring
    Patent number: 4163881
    Abstract: A circuit breaker having an improved compact thrust transmitting spring for opening the contacts in a minimum of time.
    Type: Grant
    Filed: September 29, 1977
    Date of Patent: August 7, 1979
    Assignee: Westinghouse Electric Corp.
    Inventors: Russell T. Borona, Kenneth R. Coley
  • Circuit breaker contact structure
    Patent number: 4162467
    Abstract: A circuit interrupter with improved current withstand capability characterized by stationary and movable contact means, the stationary contact means comprising first and second conductors being substantially parallel and having an air gap therebetween, the first conductor being pivotally mounted on the second conductor and being in the zone of pivotal movement of the first conductor so that when a fault current of predetermined conditions occurs a magnetic flux between the first and second conductors urges the first conductor toward the movable contact means.
    Type: Grant
    Filed: June 16, 1977
    Date of Patent: July 24, 1979
    Assignee: Westinghouse Electric Corp.
    Inventors: Albert R. Cellerini, Louis N. Ricci, James O. Rexroad
  • Liquid silicon casting control mechanism
    Patent number: 4162291
    Abstract: A liquid silicon casting control mechanism characterized by means for producing liquid elemental silicon and comprising a collecting vessel having a tap hole therein for periodically removing liquid silicon in a controlled manner, and comprising a tubular constricted opening.
    Type: Grant
    Filed: October 12, 1977
    Date of Patent: July 24, 1979
    Assignee: Westinghouse Electric Corp.
    Inventors: Frank G. Arcella, Charles B. Wolf, Maurice G. Fey
  • Method and apparatus for melting machining chips
    Patent number: 4160867
    Abstract: A method and apparatus for melting metal chips characterized by a preheating zone, a pre-reducer zone, and a melting zone in conjunction with an arc heater through which a reducing or inert gas atmosphere is introduced into the communicating zones, whereby metal chips entering the preheating zone move through the preheating, pre-reducing and melting zones in counterflow to the reducing or inert gas movement.
    Type: Grant
    Filed: May 17, 1977
    Date of Patent: July 10, 1979
    Assignee: Westinghouse Electric Corp.
    Inventors: Maurice G. Fey, Francis J. Harvey, II
  • Method and apparatus for superheating gases
    Patent number: 4160118
    Abstract: An arc heater method and system for producing a high energy heat source characterized by a housing forming a mixing compartment, a plurality of arc heaters radially mounted on the housing and communicating with the mixing compartment, a reactor communicating with the downstream end of the mixing compartment with a reduced opening therebetween, inlet means at the downstream end of the compartment for introducing an oxidizable metal compound into the reactor, and means within the mixing compartment for flowing superheated gases from the arc heaters at the upstream end of the compartment and into the reactor.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: July 3, 1979
    Assignee: Westinghouse Electric Corp.
    Inventors: Maurice G. Fey, Charles B. Wolf
  • Multi-pole high-voltage circuit-interrupter having independent pole tripping with a single common operating mechanism
    Patent number: 4159404
    Abstract: A multi-pole high-power circuit-interrupter is provided having a common operating mechanism, and having independent pole operation by associating with each of the several pole-units its own independent collapsible latching means, which may be very quickly released upon a tripping operation associated with the respective pole-unit to which said latch is individually connected.Another important feature of the invention, is an overlapping toggle arrangement, in which the toggle is overlapped in the closed-circuit position of the circuit-interrupter, and may be very quickly released to an extended unlatched position, for example, by an electromagnetically-operated tripping device, such as a repulsion coil, for example.
    Type: Grant
    Filed: January 6, 1976
    Date of Patent: June 26, 1979
    Assignee: Westinghouse Electric Corp.
    Inventor: Willie B. Freeman
  • Method of making pressed magnetic core components
    Patent number: 4158582
    Abstract: A method of making pressed magnetic core components having a low core loss property for use in electrical apparatus characterized by reannealing and repressing said components after initial annealing and pressing.
    Type: Grant
    Filed: April 14, 1978
    Date of Patent: June 19, 1979
    Assignee: Westinghouse Electric Corp.
    Inventor: Robert F. Krause
  • Method for preparing oxide coated microlamination particles
    Patent number: 4158561
    Abstract: A method for preparing oxide coated microlaminations characterized by heating microlamination particles at a temperature of about 1375.degree. in an atmosphere having a dew point of 55.degree. to 85.degree. F. and an air-to-natural gas ratio of from about 10.5:1 to about 8:1 for a time sufficient to decarburize the particles to less than 0.005% carbon and to form on the particle surfaces an oxide coating having a thickness of from about 0.01 to about 0.10 mils.
    Type: Grant
    Filed: April 14, 1978
    Date of Patent: June 19, 1979
    Assignee: Westinghouse Electric Corp.
    Inventors: Norman M. Pavlik, John Sefko
  • Method of making magnetic component for direct current apparatus
    Patent number: 4158581
    Abstract: A method of making compact cores for use in direct current magnetic apparatus characterized by the steps of severing particles from thin, flat strips of ferrous alloys, said particles being substantially of elongated rectangular shape, annealing said laminations in decarburizing and deoxidizing atmosphere to improve the magnetic characteristics by reducing carbon to less than 0.01% and relieving stresses, compressing the particles into a solidified configuration of the desired core component, and annealing the core component at a temperature upwards of 2200.degree. F. in a non-oxidizing atmosphere to improve the permeability and coercive force values.
    Type: Grant
    Filed: April 14, 1978
    Date of Patent: June 19, 1979
    Assignee: Westinghouse Electric Corp.
    Inventors: Robert F. Krause, Norman M. Pavlik
  • Method of making pressed magnetic core components
    Patent number: 4158580
    Abstract: A method of making pressed magnetic core components characterized by coating particles of annealed low carbon ferrous alloy with a coating of hydrated magnesium silicate.
    Type: Grant
    Filed: April 14, 1978
    Date of Patent: June 19, 1979
    Assignee: Westinghouse Electric Corp.
    Inventors: William T. Reynolds, Norman M. Pavlik
  • Current limiting contactor
    Patent number: 4158827
    Abstract: A current limiting contactor characterized by stationary and movable contacts, an elongated conductor supporting the movable contact, the conductor being fixedly mounted at a position spaced from the movable contact, the conductor having a looped portion including a pair of overlapping segments for conducting current in opposite directions of each other, the movable contact engaging the stationary contact when conducting a current up to a predetermined current value, and the conductor being comprised of a flexible material and the overlapping portions being separable to move the movable contact away from the stationary contact when the current exceeds said predetermined value.
    Type: Grant
    Filed: June 21, 1977
    Date of Patent: June 19, 1979
    Assignee: Westinghouse Electric Corp.
    Inventors: Walter V. Bratkowski, Kurt A. Grunert
  • Multi-phase switch with variable pole spacing
    Patent number: 4151384
    Abstract: A multi-pole switch characterized by spaced sets of stationary and movable contacts, mounting means for the movable contacts comprising a common contact operating shaft rotatable between open and closed positions of the contacts, the mounting means for each movable contact comprising a bracket operatively mounted on the operating shaft and having releasable means for retaining one contact at one position spaced from an adjacent contact, the bracket including means for releasably retaining one movable contact in one position laterally spaced from an adjacent contact, the mounting means also comprising a unitary insulating base mounted on the shaft and having spaced mounting stations for the movable contacts, and mounting means comprising interfitting releasable members for adjusting the lateral spacing between adjacent movable contacts.
    Type: Grant
    Filed: February 17, 1977
    Date of Patent: April 24, 1979
    Assignee: Westinghouse Electric Corp.
    Inventors: Joseph A. Coffta, William P. Heim, Thomas A. Wilsdon, Glenn A. Barlis