ROBERT MYER SLEPIAN
Engineers in Pittsburgh, PA

4963694, Oct 16, 1990

Jun 5, 1989

7/361205

Christopher C. Alexion - North Huntingdon PA
Thomas D. Hordubay - Penn Hills Township, Allegheny County PA
Wesley Mamrose - North Huntingdon PA
Steven R. Walk - Winterport ME
Robert M. Slepian - Wilkinsburg PA

Westinghouse Electric Corp. - Pittsburgh PA

H01B 734

174 156

A connector assembly for transferring high-frequency current into or from a Litz-wire electrical cable having multiple conductor strands includes a transition connector component, a terminal connector component, and a coupling collar. The transition component has an annular groove which receives the splayed ends of the multiple conductor strands and makes electrical connection therewith by soldering of the conductor strand ends to the transition component at the groove. The transition component also has a central opening through it for providing flow communication with the internal coolant flow channel of the electrical cable. The terminal connector component has an orifice through it for establishing flow communication between the transition component opening and an external source of coolant. The terminal component also has a tab projecting from it for making an external electrical connection. The transition and terminal components are electrically connected together by fasteners.

4859940, Aug 22, 1989

Sep 9, 1987

7/094983

George T. Hummert - Oakmont PA
Robert M. Slepian - Pittsburgh PA
Lawrence R. Westrick - Grosse Ile MI

Westinghouse Electric Corp. - Pittsburgh PA

G01N 2774, G01R 3312

324204

A slag detector apparatus for detecting onset of 5% or less slag entrainment in a stream of molten metal employs a detection coil having an axial length at least equal to the length of a globule of molten metal in the stream being composed of a continuous succession of recurring cyclical globules of molten metal, and an impedance detector for periodic sampling and smoothing of the fluctuations of the terminal impedance of the detector coil corresponding to the fluctuating cross-sectional dimension of the stream. The detector coil is part of a signal sensitivity enhancement circuit in the apparatus which also includes a tunable capacitor connected with the detector coil. The capacitor is used for tuning the circuit to its resonance frequency so that the capacitive reactance of the circuit due to the presence of the capacitor cancels the inductive reactance of the circuit due to the presence of the coil so as to leave only an impedance that is due to resistance of the coil.

4842170, Jun 27, 1989

Jul 6, 1987

7/070017

Robert M. Del Vecchio - Turtle Creek PA
Robert M. Slepian - Pittsburgh PA

Westinghouse Electric Corp. - Pittsburgh PA

B22D 4108

222594

A liquid metal electromagnetic flow control device for controlling liquid metal flow through a nozzle orifice includes an alternating current electromagnetic coil disposed adjacent the nozzle and surrounding the orifice therein, and a nonconductive structure disposed along a portion of the coil and occupying an axial portion of the nozzle orifice and leaving an adjacent portion of the nozzle orifice unoccupied. The coil is operable to produce a magnetic field being axially directed and eddy currents being azimuthally directed within the nozzle orifice and the liquid metal flowing therethrough. The structure defines eddy current flow regions and eddy current nonflow regions through the occupied portion of the orifice. The eddy current nonflow regions are positioned relative to said eddy current flow regions thereof so as to substantially block production of eddy currents in the liquid metal as the metal flows through the eddy current nonflow regions. Such blockage reshapes the magnetic field within the orifice at a region of transition therewithin between the eddy current flow and nonflow portions of the orifice to have a radially directed component which produces a substantially axially directed electromagnetic pumping force in the nozzle which controls the flow of liquid metal therethrough be either impeding or assisting the liquid metal flow.

5277551, Jan 11, 1994

Sep 16, 1992

7/945456

Robert M. Slepian - Wilkinsburg PA
Alvin R. Keeton - The Colony TX
Charles P. Nyilas - Monroeville PA

Westinghouse Electric Corp. - Pittsburgh PA

H02K 4406

417 50

A submersible, single phase electromagnetic pumping assembly (10) for liquid metal is made, which contains a submersible pump section (16) and a nonsubmersible pump section (18) connected by a hollow conduit (20) where single phase electromagnetic windings (22 and 24) are disposed in each pump section, providing a two stage pumping assembly, and an eddy current blocking electromagnetic winding (22 and 24), providing liquid flow orifices unoccupied by the structure within each pump section near the winding, and where the single phase coils can create a pulsed, standing magnetic wave within each liquid flow orifice.