Christopher M Welsh

US Patent:

7512207, Mar 31, 2009

Filed:

Apr 12, 2005

Appl. No.:

11/104583

Inventors:

Jarred Smith - Huntersville NC, US
Jack T Matsumoto - Sunnyvale CA, US
Christopher M Welsh - Livermore CA, US
Trevor J Davis - Charlotte NC, US
Jeffrey J Grinnell - West Columbia SC, US
David P Ketcham - Charlotte NC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

G21C 17/00

US Classification:

376249, 376245, 376260, 73 405

Abstract:

An apparatus for delivering a tool into a nuclear reactor jet pump submerged in a reactor pool includes a frame, and a propulsion unit for controlling the movement of the tool delivery apparatus within a pool of liquid. A guide assembly provides for delivery and insertion of the tool into an inlet of the jet pump and includes a bore insertion portion. A tool position driver provides for controlling the vertical position of the tool in relation to the guide assembly.

US Patent:

7543512, Jun 9, 2009

Filed:

Apr 13, 2005

Appl. No.:

11/104839

Inventors:

Jarred A Smith - Huntersville NC, US
Christopher M. Welsh - Livermore CA, US
Trevor J Davis - Charlotte NC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01M 19/001

US Classification:

738658

Abstract:

A probe for inspecting a bore includes a housing dimensioned for insertion into the bore and a plurality of stabilization legs having a first end attached to the housing and a second end extendable from the housing. The stabilization legs are configured to contact the inner surface of the bore. A plurality of sensor arms is extendable from the housing and is rotatable relative to the stabilization legs. A motor provides for rotating the sensor arms relative to the stabilization legs.

US Patent:

7715516, May 11, 2010

Filed:

Apr 12, 2005

Appl. No.:

11/103931

Inventors:

Jarred Smith - Huntersville NC, US
Jack Matsumoto - Sunnyvale CA, US
Christopher M Welsh - Livermore CA, US
Trevor J Davis - Charlotte NC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

G21C 17/00

US Classification:

376149, 376248, 376260

Abstract:

A method for delivery of a tool into a submerged bore includes controlling the movement of a tool delivery device in the pool by operating at least one propulsion drive located on the tool delivery device. The tool delivery device is coupled to an inlet to the bore and a tool is inserted from the tool delivery device through the inlet and into the bore.