Stephen R Walcott

US Patent:

8568826, Oct 29, 2013

Filed:

Oct 21, 2011

Appl. No.:

13/278349

Inventors:

Junyoung Park - Greenville SC, US
Jason Robert Parolini - Greenville SC, US
Ibrahim Ucok - Greenville SC, US
Brian Lee Tollison - Greenville SC, US
Stephen Walcott - Atlanta GA, US
Jon Conrad Schaeffer - Greenville SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

B05D 1/12

US Classification:

427180, 427181, 427189, 427190, 427191, 427192, 427193, 427212, 427215, 427216, 427217

Abstract:

A method for brazing a component in a power generation system, the brazed power generation system component, and braze are provided to improve repairing power generation systems. The method includes providing the component having a feature in a surface of the component and coating a particulate material with a filler material to obtain a coated particulate material. The method includes preparing the feature to obtain a treatment area and filling the treatment area in the surface of the component with the coated particulate material. The method includes heating the treatment area and surrounding component to a brazing temperature and applying oxidation protection to the treatment area. After the brazing temperature is obtained, the method includes brazing the treatment area and the screen and cooling the component to obtain a brazed joint.

US Patent:

20040084849, May 6, 2004

Filed:

Oct 30, 2002

Appl. No.:

10/283293

Inventors:

Stephen Walcott - Simpsonville SC, US
David Leach - Simpsonville SC, US
Hamid Sarshar - Clifton Park NY, US

International Classification:

F16J015/56

US Classification:

277/355000

Abstract:

A steam gland includes a steam inlet scroll and an extraction scroll axially spaced from one another defining high and low pressure regions. A seal body is disposed between the regions and includes a pair of brush seals axially spaced from one another. Intermediate the brush seals is a honeycomb seal. The hybrid brush seal/honeycomb seal combination minimizes steam leakage between the high and low pressure regions and eliminates the possibility of heat induced damage to the rotor while optimizing seal leakage performance.