MICHAEL D BURKE
Vehicle Board in Pittsburgh, PA

6638639, Oct 28, 2003

Jul 6, 2000

09/509621

Michael A. Burke - Pittsburgh PA
Paula D. Freyer - Cranberry Township PA
Mohan A. Hebbar - Oviedo FL
Brij B. Seth - Maitland FL
Gary W. Swartzbeck - North Huntingdon PA
Thomas Walter Zagar - Winter Springs FL

Siemens Westinghouse Power Corporation - Orlando FL

B32B 1500

428583, 428594, 428606, 428680, 416241 R, 416 95

High efficiency, thin-walled turbine components such as turbine blade airfoils comprise a superalloy substrate covered by a thin skin. The thin skin may be bonded to the inner spar structure of a turbine blade airfoil by a transient liquid phase bonding process. The inner spar preferably comprises a cast single crystal nickel base superalloy. The thin skin may comprise a single crystal or polycrystalline nickel base superalloy or the like.

6062811, May 16, 2000

Aug 6, 1998

9/129905

Paul J. Zombo - Cocoa FL
Brij B. Seth - Maitland FL
Kent G. Hultgren - Winter Park FL
Michael A. Burke - Pittsburgh PA

Siemens Westinghouse Power Corporation - Orlando FL

F01B 2526

415118

A monitor for detecting overheating of a critical component in a combustion turbine is provided. The monitor, when used in conjunction with a closed-loop cooling system, comprises a coating comprising an indicator material having an activation temperature. The coating is situated on the internal cooling passages of the critical component. The monitor further comprises a sensor connected to an outlet conduit of the cooling system for determining the amount of degradation of indicator material by monitoring the cooling fluid flowing through the outlet conduit. Embodiments further comprising "sniffer" tubes for use with open-loop air cooling systems also are provided.

4540038, Sep 10, 1985

Jun 5, 1984

6/617458

Michael A. Burke - Pittsburgh PA

Westinghouse Electric Corp. - Pittsburgh PA

B22D 1116

164499

This is a process of fabricating directionally solidified turbine blades for combustion turbines. It is an improvement to the type of process where a mold containing molten metal is cooled in a controlled fashion such that solidification occurs slow enough to allow directional solidification beginning at the airfoil end. In the improved process solidification is monitored and magnetic mixing of the remaining molten metal is started at approximately the beginning of solidification of said root section and the rate of cooling of said blade is increased to a rate faster than at which directional solidification occurs. A blade is produced with a directionally solidified airfoil section and a fine grained root section and without a substantially inhomogeneous portion at the interface between the airfoil and root sections.

6331217, Dec 18, 2001

Jul 6, 2000

9/509600

Michael A. Burke - Pittsburgh PA
Paula D. Freyer - Cranberry Township PA
Mohan A. Hebbar - Oviedo FL
Brij B. Seth - Maitland FL
Gary W. Swartzbeck - North Huntingdon PA
Thomas Walter Zagar - Winter Springs FL

Siemens Westinghouse Power Corporation - Orlando FL

C22F 110, F01D 512

148522

Large gas turbine blades made from separate cast segments of superalloys are disclosed. The turbine blade is designed such that bond lines between adjacent segments are placed in low stress regions of the blade. The cast superalloy segments of the blades are aligned and fitted together with specified tolerances. The turbine blade segments are then joined by transient liquid phase bonding, followed by a controlled heat treatment which produces the desired microstructure in the bond region. The method allows for the production of large, high quality turbine blades by joining small, high quality cast superalloy sections, in comparison with prior attempts to cast large turbine blades as single pieces which have produced very low yields and high individual component costs.

4637448, Jan 20, 1987

Aug 27, 1984

6/644751

Michael A. Burke - Pittsburgh PA
Cyril G. Beck - Monroeville PA

Westinghouse Electric Corp. - Pittsburgh PA

B22D 2702

1641222

This is a process of fabricating turbine blades for combustion turbines. It is an improvement to the type of process where a mold containing molten metal is cooled in a controlled fashion such that solidification occurs slow enough to allow single crystal growth beginning at the airfoil end. In the improved process solidification is monitored and magnetic mixing of the remaining molten metal is started at approximately the beginning of solidification of said root section and at approximately the same time the rate of cooling of said blade is increased to a rate faster than at which single crystal growth occurs. Grain boundary strengthener (preferably carbon) can be added at approximately the same time mixing is begun. A blade is produced with a single crystal airfoil section and a fine grained root section and without a substantially inhomogeneous portion at the interface between the airfoil and root sections.

6200088, Mar 13, 2001

May 8, 2000

9/566572

Paul J. Zombo - Cocoa FL
Brij B. Seth - Maitland FL
Kent G. Hultgren - Winter Park FL
Michael A. Burke - Pittsburgh PA

Siemens Westinghouse Power Corporation - Orlando FL

F01D 518

415118

A monitor for detecting overheating of a critical component in a combustion turbine is provided. The monitor, when used in conjunction with a closed-loop cooling system, comprises a coating comprising an indicator material having an activation temperature. The coating is situated on the internal cooling passages of the critical component. The monitor further comprises a sensor connected to an outlet conduit of the cooling system for determining the amount of degradation of indicator material by monitoring the cooling fluid flowing through the outlet conduit. Embodiments further comprising "sniffer" tubes for use with open-loop air cooling systems also are provided. In alternative embodiments, auxiliary cooling systems for supplying auxiliary cooling to critical components at certain activation temperatures also are provided.

7351364, Apr 1, 2008

Jan 29, 2004

10/767012

Jay A. Morrison - Oviedo FL, US
Gary B. Merrill - Orlando FL, US
Steven James Vance - Orlando FL, US
Michael A. Burke - Pittsburgh PA, US

Siemens Power Generation, Inc. - Orlando FL

B28B 11/00, B28B 5/00, B29C 33/76

264162, 264163, 264255, 264313, 264317, 264610, 264632, 264635, 264642, 264678, 264DIG 44

A method of manufacturing a hybrid structure () having a layer of CMC material () defining an interior passageway () and a layer of ceramic insulating material () lining the passageway. The method includes the step of casting the insulating material to a first thickness required for effective casting but in excess of a desired second thickness for use of the hybrid structure. An inner mold () defining a net shape desired for the passageway remains in place after the casting step to mechanically support the insulating material during a machining process used to reduce the thickness of the insulating material from the as-cast first thickness to the desired second thickness. The inner mold also provides support as the CMC material is deposited onto the insulating material. The inner mold may include a fugitive material portion () to facilitate its removal after the CMC material is formed.

5423475, Jun 13, 1995

Oct 6, 1993

8/132258

Michael A. Burke - Pittsburgh PA

Westinghouse Electric Corporation - Pittsburgh PA

B23K 2000, B05D 306

228193

An aluminum body having diamond bonded thereto with a diffused interlayer of silicon is described.

5475198, Dec 12, 1995

Nov 15, 1985

6/798520

Michael A. Burke - Pittsburgh PA
Donald T. Hackworth - Monroeville PA
Richard A. Miller - North Huntingdon Township PA
William H. Kasner - Penn Hills Township PA

Westinghouse Electric Corporation - Pittsburgh PA

B23K 912

21912434

A weld pool viewing system including optical elements for enhancing the weld pool image is positioned at an angle relative to the axis of a welding torch to extract image information pertaining to the interface of the weld pool with a workpiece to control the welding parameters.

4482913, Nov 13, 1984

Feb 24, 1982

6/351809

Michael A. Burke - Pittsburgh PA
Clarence A. Andersson - Pittsburgh PA

Westinghouse Electric Corp. - Pittsburgh PA

H01L 2158, H01L 2314, H01L 2332

357 67

The present invention is directed to a semiconductor device in which a wafer of semiconductor material is soldered to a graphite substrate.