Christopher Scott Thompson

US Patent:

7231724, Jun 19, 2007

Filed:

Oct 28, 2005

Appl. No.:

11/260151

Inventors:

Graham David Sherlock - Greenville SC, US
Paul Lawrence Kalmar - Zirconia NC, US
Christopher Edward Thompson - Greenville SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01B 5/14

US Classification:

33542, 33 1 N, 33534, 33DIG 8

Abstract:

A tool for measuring seal slot position includes a tool shaft having a longitudinal axis, a pin eccentrically disposed at one end of the tool shaft relative to the longitudinal axis, and a disk member disposed at an opposite end of the tool shaft that facilitates rotation of the tool shaft and pin in the seal slot. The tool provides for increased accuracy in measuring seal slot position such as turbine nozzle seal slot position.

US Patent:

7335089, Feb 26, 2008

Filed:

Dec 13, 2006

Appl. No.:

11/639065

Inventors:

Christopher E. Thompson - Greenville SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

B24B 1/00

US Classification:

451 38, 451 54

Abstract:

A method for water jet stripping and recontouring of a coated article of manufacture is provided. The method includes dimensionally scanning the coated article and establishing a three-dimensional model for the coated article. The method further includes establishing a set of reduced dimensional profiles for recontouring and then analyzing whether the reduced profiles are satisfactory for subsequent operation. A jet spraying program is established for removal of the coating and the surface base material to each predetermined reduced dimensional profile.

US Patent:

7762004, Jul 27, 2010

Filed:

Jan 25, 2008

Appl. No.:

12/010513

Inventors:

Graham D. Sherlock - Greenville SC, US
Paul L. Kalmar - Zirconia NC, US
Christopher E. Thompson - Danvers MA, US
Benjamin E. Baker - Simpsonville SC, US
Todd Moran - Greenville SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01B 3/14

US Classification:

33562, 33645

Abstract:

An inspection tool for a turbine bucket shroud includes: a clamp device for clamping a dovetail portion of a turbine bucket; a template plate provided with an aperture defined by a edge shaped to conform to a specified shape of the turbine bucket shroud, wherein the template is moveable to a location over the turbine bucket shroud in a direction toward the clamp device, and wherein, at the location, the aperture represents a design specification location for the turbine bucket shroud relative to the dovetail portion of the bucket. A measurement gauge is provided for measuring gaps between edges of the shroud and edges of the template aperture.

US Patent:

7934975, May 3, 2011

Filed:

Jul 27, 2007

Appl. No.:

11/881823

Inventors:

Christopher E. Thompson - Greenville SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

B24B 49/00

US Classification:

451 5, 382141, 451 38, 451 75, 114222, 239227, 239252, 239258, 700160

Abstract:

A method for water jet stripping and recontouring of a coated article of manufacture is provided. The method includes dimensionally scanning the coated article and establishing a three-dimensional model for the coated article. The method further includes establishing a set of reduced dimensional profiles for recontouring and then analyzing whether the reduced profiles are satisfactory for subsequent operation. A jet spraying program is established for removal of the coating and the surface base material to each predetermined reduced dimensional profile.

US Patent:

8051564, Nov 8, 2011

Filed:

Jan 9, 2007

Appl. No.:

11/621152

Inventors:

Graham David Sherlock - Greenville SC, US
Christopher Edward Thompson - Greenville SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

B21K 25/00

US Classification:

298892, 33549, 33562, 738658, 73 179

Abstract:

A method for fabricating a nozzle segment for use within a turbine nozzle assembly. The method comprises providing a nozzle segment including an outer band, an inner band, and at least one vane extending there between, wherein at least one of the inner band and the outer band is formed with a transition piece groove defined therein, positioning an inspection tool in contact with the nozzle assembly such that the inspection tool is aligned relative to the nozzle segment using at least one datum, and verifying an alignment of each transition piece groove using the inspection tool.

US Patent:

8157515, Apr 17, 2012

Filed:

Aug 1, 2008

Appl. No.:

12/222091

Inventors:

Mark Bailey - Simpsonville SC, US
Christopher E. Thompson - Danvers MA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F03B 1/04
B23P 19/04

US Classification:

415202, 4152091, 4152094

Abstract:

A vane doublet for a turbine nozzle includes a radially inner band; a radially outer band; and a pair of airfoils extending between the inner band and the outer band. One of the inner and outer bands is split in a generally axial direction along a split line passing between the pair of airfoils, and a seal is secured between or adjacent to facing edges of the split line.

US Patent:

20080292466, Nov 27, 2008

Filed:

May 24, 2007

Appl. No.:

11/805528

Inventors:

Daniel Tragesser - Greenville SC, US
Ian Reeves - Piedmont SC, US
Christopher Thompson - Danvers MA, US
Todd Moran - Simpsonville SC, US

International Classification:

F01D 5/12

US Classification:

416223 R

Abstract:

The present application further describes a method for extending the operating life of a tip shrouded turbine blade that includes the steps of: 1) removing an end located cutter tooth from a seal rail of a tip shroud, the end located cutter tooth including a cutter tooth located at the end of one of the suction side and pressure side of the seal rail of the tip shroud; and 2) attaching a center located cutter tooth to the seal rail of the tip shroud, the center located cutter tooth including a cutter tooth that is located in the approximate center of the seal rail of the tip shroud. In such method, the center located cutter tooth may be attached to the seal rail such that the center located cutter tooth is inside the airfoil if it were projected radially outward from the narrowest point below a tip shroud fillet.

US Patent:

20090116533, May 7, 2009

Filed:

Nov 2, 2007

Appl. No.:

11/979431

Inventors:

Matthew J. O'Connell - Taylors SC, US
Christopher E. Thompson - Danvers MA, US
Paul S. Dimascio - Greet SC, US

Assignee:

GENERAL ELECTRIC COMPANY - Schenectady NY

International Classification:

G01N 25/72
G01N 29/14
G01N 19/08

US Classification:

374 5, 73587, 73799

Abstract:

A method and apparatus is described for enabling the testing and evaluation of industrial machine components and, in particular, gas turbine engine components, under simulated in-situ thermal operating conditions for effectively evaluating new component designs and repair techniques. A specimen machine component/part is placed in a test chamber and cyclically heated and cooled while being monitored to obtain information regarding the initiation and propagation of a crack within the structure of the component. Information regarding the number of heating and cooling cycles sustained by the component until crack initiation and information indicating the rate of crack propagation are acquired and compared over multiple heating-cooling cycles to evaluate components and repair techniques. In one example implementation, the component is monitored during cyclic heating-cooling for spontaneous acoustic emissions and acoustic emission waveform data is recorded and analyzed to determine crack initiation and/or propagation.