Raymond Grant Rowe

US Patent:

6554006, Apr 29, 2003

Filed:

Dec 22, 2000

Appl. No.:

09/742306

Inventors:

Raymond Grant Rowe - Niskayuna NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

B08B 902

US Classification:

134 2211, 134 2214, 134 2219, 134 28, 134 41

Abstract:

The present invention provides a method of removing copper oxide deposits from stator water cooling system piping material surfaces. The present invention disconnects the generator from the stator water cooling system, connects bridging piping to the stator water cooling system at the points from which the generator was disconnected to allow the stator water cooling system to operate without the generator, provides a sufficient amount of an aqueous solution of an agent which dissolves or removes copper oxide deposits from piping material surfaces for a time sufficient to dissolve or remove substantially all copper oxide deposits, and rinses the piping material surfaces with sufficient water until the output water from the rinsing of the piping material surfaces is essentially neutral.

US Patent:

6596175, Jul 22, 2003

Filed:

Feb 28, 2001

Appl. No.:

09/795580

Inventors:

Raymond Grant Rowe - Niskayuna NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

C02F 508

US Classification:

210696, 134 3, 134 41, 210741, 310 54, 422 3, 422 12, 422 14

Abstract:

A method is disclosed to dissolve cupric oxide (CuO) deposits on a strainer in a stator water cooling system (SWCS) of an industrial electrical power generator. The method injects carbon dioxide (CO ) into the coolant to increase the CuO solubility of the coolant. By increasing the solubility, the CuO level in the coolant is less than saturated. The unsaturated coolant dissolves the CuO deposits on the strainer.

US Patent:

7073247, Jul 11, 2006

Filed:

Apr 30, 2003

Appl. No.:

10/249685

Inventors:

Raymond Grant Rowe - Niskayuna NY, US
Alan M. Iverson - Clifton Park NY, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

H02K 15/00
H02K 15/14
H02K 15/16

US Classification:

29596, 2940202, 2940218, 29854, 29860, 29890054, 2281805, 2282629, 310 54, 310 71

Abstract:

A method for metallurgically bonding a stator bar to a coupling to reduce the incidence of leak paths resulting from corrosion. The stator bar comprises strands through which a liquid coolant can flow. Adjacent ends of the strands are received in an interior cavity of the coupling through an opening in the coupling. A joining material is provided on a first portion of the stator bar within the coupling opening and adjacent the ends of the strands. The first portion is heated to melt the joining material. At essentially the same time, a second portion of the stator bar outside the coupling is also heated. Once the joining material is suitably molten, the first portion is allowed to cool while the second portion remains heated, thereby causing the joining material nearest the ends of the strands to solidify first.

US Patent:

7217099, May 15, 2007

Filed:

May 24, 2005

Appl. No.:

11/135470

Inventors:

Fernando Jorge Casanova - Simpsonville SC, US
San-Dar Gau - Greenville SC, US
Richard Michael Robinson - Simpsonville SC, US
Raymond Grant Rowe - Niskayuna NY, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F01D 5/30

US Classification:

416219R, 416224, 416241 R, 416241 A, 416244 A, 416248

Abstract:

A compressor forward stub shaft comprising a plurality of axially spaced, annular rows of dovetail grooves, at least a first and a second of the plurality of rows having dovetail slots coated in part with an anti-wear coating.

US Patent:

7276134, Oct 2, 2007

Filed:

Oct 18, 2004

Appl. No.:

10/965784

Inventors:

Raymond Grant Rowe - Niskayuna NY, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

B32B 37/10
H02K 15/02

US Classification:

156281, 156 94, 156285, 156305, 2940202, 2940218, 427142, 264 3622

Abstract:

A method includes blasting the interior surfaces of the fitting to stator bar strand joint with COpellets to remove loose copper oxide which otherwise would interfere with proper sealing between an epoxy and the copper surfaces of the joint. After cleaning the surfaces and applying air under pressure to remove particulate material, epoxy is applied to the brazed joints followed by an evacuation of the fitting to strand joint. Subsequent release of the vacuum ensures that the epoxy fills in all crevices or cracks at the joint surfaces and minimizes or eliminates any tendency of the epoxy to delaminate.

US Patent:

7368164, May 6, 2008

Filed:

Jun 18, 2004

Appl. No.:

10/710110

Inventors:

William Randolph Stowell - Rising Sun OH, US
Daniel Peter Ivkovich - Fairfield OH, US
Timothy Lance Manning - Cincinnati OH, US
Tara Easter McGovern - Simpsonville SC, US
Jane Ann Murphy - Franklin OH, US
Thomas Walter Rentz - Cincinnati OH, US
Mathew Curtis Roling - Simpsonville SC, US
Raymond Grant Rowe - Niskayuna NY, US
Andrew Jay Skoog - West Chester OH, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

B32B 18/00
B32B 9/00
F04D 29/38

US Classification:

428325, 428328, 428450, 428469, 428701, 428702, 416241 B

Abstract:

A coating and method for overcoating a TBC on a component used in a high-temperature environment, such as the combustor section of an industrial gas turbine. The coating defines the outermost surface of the component and is formed of at least two layers having different compositions. An inner layer of the coating contains alumina in a first silica-containing matrix material that is free of zinc titanate. An outer layer of the coating contains alumina, a glass material, and zinc titanate in a second silica-containing matrix material. The outer layer of the coating has a surface roughness of not greater than three micrometers Ra and forms the outermost surface of the component. The coating reduces the component temperature by reducing the convective and radiant heat transfer thereto.

US Patent:

7464460, Dec 16, 2008

Filed:

Feb 9, 2006

Appl. No.:

11/276009

Inventors:

Raymond Grant Rowe - Niskayuna NY, US
Alan Michael Iversen - Clifton Park NY, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

H01R 43/02

US Classification:

29860, 294022, 2940207, 2940216, 2940218, 29596, 29854, 29890054, 2281805, 2282629, 310 42, 310 54, 310 71

Abstract:

A method for metallurgically bonding a stator bar to a coupling to reduce the incidence of leak paths resulting from corrosion. The stator bar comprises strands through which a liquid coolant can flow. Adjacent ends of the strands are received in an interior cavity of the coupling through an opening in the coupling. A joining material is provided on a first portion of the stator bar within the coupling opening and adjacent the ends of the strands. The first portion is heated to melt the joining material. At essentially the same time, a second portion of the stator bar outside the coupling is also heated. Once the joining material is suitably molten, the first portion is allowed to cool while the second portion remains heated, thereby causing the joining material nearest the ends of the strands to solidify first.

US Patent:

8007246, Aug 30, 2011

Filed:

Jan 17, 2007

Appl. No.:

11/654182

Inventors:

Raymond Grant Rowe - Niskayuna NY, US
Tara Easter McGovern - Simpsonville SC, US
Jane Ann Murphy - Franklin OH, US
Andrew Jay Skoog - West Chester OH, US
William R. Stowell - Rising Sun IN, US
Paul Thomas Marks - Simpsonville SC, US
Lisa DeBellis - Simpsonville SC, US
James H. Clare - Crosby TX, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F01D 5/18

US Classification:

416241R, 416241 B

Abstract:

A method of fabricating a component for a gas turbine engine is provided. The method includes applying a bond coat to at least a portion of the component, applying a dense vertically cracked (DVC) thermal barrier coating to at least a portion of the bond coat using a spray mechanism positioned a first distance from the component, and overlying at least a portion of the DVC thermal barrier coating with a soft coat thermal barrier coating using a spray mechanism that is positioned a second distance away from the component, wherein the second distance is greater than the first distance to facilitate adherence of the soft coating thermal barrier coating to the DVC thermal barrier coating.