Donald C Litz Deceased5885 Fillmore Ave, Export, PA 15632

4309621, Jan 5, 1982

Jan 11, 1980

6/111418

Donald C. Litz - Murrysville PA

Westinghouse Electric Corp. - Pittsburgh PA

H02P 904

290 52

A turbine generator or motorized compressor wherein the blades of the turbine or compressor serve as armature conductors for a DC homopolar machine having a single stator which serves as a housing for the turbine or compressor and houses a field coil.

4123676, Oct 31, 1978

Oct 22, 1976

5/734943

Glenn D. Cooper - North Huntingdon PA
Donald C. Litz - Murrysville PA

Westinghouse Electric Corp. - Pittsburgh PA

H02K 900

310 52

A rotor is provided for an alternating current generator carrying a superconducting field winding and having a combined damper and shield member comprising a cylindrical member of high electrical conductivity. The shield member is attached to the rotor only at the end opposite the drive shaft and is supported on the rotor at the drive end in a manner to permit relative movement between the shield and the support.

4060742, Nov 29, 1977

Dec 31, 1975

5/645588

Donald C. Litz - Monroeville PA

Westinghouse Electric Corporation - Pittsburgh PA

H02K 900

310 52

A superconducting dynamoelectric machine has a cryogenic portion of the rotor supported on the ambient temperature portion of the rotor by relatively long and thin spokes. The spokes extend between the ambient temperature portion and a flange located on a cryogenic temperature portion. The materials of the flange and spokes are selected so that contraction of the spokes along their length will be compensated for by contraction of the flange in that direction. Contraction in the transverse direction is compensated for by an appropriate displacement of the end of the spoke connected to the ambient temperature portion. Alignment and tension of the spoke is accurately achieved by an appropriate adjusting arrangement.

4152609, May 1, 1979

Oct 22, 1976

5/734941

Glenn D. Cooper - North Huntington PA
Donald C. Litz - Murrysville PA

Westinghouse Electric Corp. - Pittsburgh PA

H02K 900

310 52

A rotor is provided for an alternating current generator carrying a superconducting field winding and having a combined damper and shield member on the rotor. The damper-shield member is a composite cylindrical member extending over the field winding and consisting of concentric inner and outer cylinders of a high-strength, non-magnetic alloy and an intermediate cylinder of aluminum or other material of high electrical conductivity.

4017755, Apr 12, 1977

Oct 31, 1974

5/519725

Donald C. Litz - Monroeville PA

Westinghouse Electric Corporation - Pittsburgh PA

H02K 900

310 40R

In a fluid-cooling rotating member, such as a dynamoelectric machine rotor with superconducting windings, the fluid exhaust is used to cool structural members connecting ambient and cool zones in order to minimize heat flow to the cold elements. The coolant in the exhaust structure is confined to a path along the axis of rotation. This avoids radial coolant flow paths and radially displaced coolant flow paths in order to eliminate convection currents. The axially located coolant conduit is surrounded by and spaced from a supporting sleeve with a plurality of thermally conductive members extending between the coolant conduit and the supporting sleeve through an evacuated volume at axially spaced intervals.

4356700, Nov 2, 1982

Apr 20, 1981

6/255907

Phillip W. Eckels - Penn Hills Township, Allegheny County PA
Donald C. Litz - Murrysville PA
Adolphus Patterson - Wilkinsburg PA

Westinghouse Electric Corp. - Pittsburgh PA

F17C 702

62 55

A cryogenic liquid coolant transfer device enhances flow of a liquified gas in the inboard direction by the incorporation of a threaded insert in the rotating inlet pipe of a superconducting rotor. The threads of the device also facilitate the reverse flow of liquid helium back into a stationary supply tube during fault conditions. The objective of the insert, during both normal and abnormal conditions, is to inhibit the flow of liquid coolant into the clearance gap that exists between rotating and stationary parts of the liquified gas transfer system.