Patsy A Ruzzo

US Patent:

6339331, Jan 15, 2002

Filed:

Mar 24, 2000

Appl. No.:

09/534511

Inventors:

Patsy A. Ruzzo - West Chester OH

Assignee:

General Electric Company - Cincinnati OH

International Classification:

G01N 2782

US Classification:

324261, 324219, 324226, 324262

Abstract:

An inspection apparatus includes a component engagement apparatus, a detection apparatus, and a movement apparatus and is controlled by a cam. A drawer is slidably attached to the component engagement apparatus to receive and align a component including a TV-shaped opening. The detection apparatus is sized to receive an eddy current probe and is attached to the movement apparatus with an adjustable fixture. The movement apparatus identifies a relative position of the eddy current probe in relation to the TV-shaped opening being inspected and guides the movement of the detection apparatus.

US Patent:

7126329, Oct 24, 2006

Filed:

Jan 21, 2004

Appl. No.:

10/761857

Inventors:

Patsy Augestine Ruzzo - Carlisle OH, US
Matthew Stewart - Cincinnati OH, US
Anthony William Mellors - West Chester OH, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01N 27/72
G01R 33/12

US Classification:

324239, 324228

Abstract:

A method for fabricating and testing an article having a thermal-spray coating thereon. The method includes providing a substrate article having a surface, thermally spraying a coating material onto the surface of the substrate article, wherein a surface of contact between the coating material and the substrate article is a bondline, and nondestructively testing the coated article. Nondestructively testing includes generating an eddy current in the coated article, measuring the eddy current in the coated article, and evaluating a near-bondline region of the coated article located adjacent to the bondline using the measured eddy current.

US Patent:

7229661, Jun 12, 2007

Filed:

Sep 1, 2006

Appl. No.:

11/469711

Inventors:

Patsy Augestine Ruzzo - Clearwater FL, US
Matthew Stewart - Cincinnati OH, US
Anthony William Mellors - West Chester OH, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

B05D 1/02
C23C 16/44
G01R 33/12

US Classification:

427 8, 427455, 427456, 324228

Abstract:

A method for fabricating and testing an article having a thermal-spray coating thereon. The method includes providing a substrate article having a surface, thermally spraying a coating material onto the surface of the substrate article, wherein a surface of contact between the coating material and the substrate article is a bondline, and nondestructively testing the coated article. Nondestructively testing includes generating an eddy current in the coated article, measuring the eddy current in the coated article, and evaluating a near-bondline region of the coated article located adjacent to the bondline using the measured eddy current.

US Patent:

7341758, Mar 11, 2008

Filed:

Apr 24, 2003

Appl. No.:

10/422386

Inventors:

Matthew Stewart - Cincinnati OH, US
Thomas J. Tomlinson - Cincinnati OH, US
David J. Dietz - Loveland OH, US
Patsy Augustine Ruzzo - West Chester OH, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

C23C 4/18
G01N 29/04
G01N 29/44

US Classification:

427 8, 427446, 427455, 427456, 73588, 73627

Abstract:

An article having a thermal-spray coating thereon is prepared by thermally spraying a coating material onto a surface of a substrate article. The coated article is nondestructively tested by directing a transmitted ultrasonic signal into the coated article, receiving a received ultrasonic signal from the coated article, and evaluating a near-bondline region of the coated article located adjacent to the surface of the article using the received ultrasonic signal.

US Patent:

51739291, Dec 22, 1992

Filed:

Oct 28, 1991

Appl. No.:

7/783736

Inventors:

Patsy A. Ruzzo - West Chester OH

Assignee:

General Electric Company - Cincinnati OH

International Classification:

G01B 1502

US Classification:

378 50

Abstract:

A method for determining the thickness of an aluminide coating deposited on a gas turbine blade using X-ray spectrometry in which the turbine blade is formed from a nickel-based, high temperature alloy. The method establishes a characteristic secondary emission curve based upon the presence of a boundary layer or a layer of nickel permeating into the aluminide coating layer during the coating process. A characteristic secondary emission curve is formed based upon secondary emission characteristic of nickel. One end of the curve is established by a count rate corresponding to secondary radiation from substantially pure nickel and a second end of the curve corresponds to a count rate representative of secondary emission from either the base material or the coating material. The determination of whether to use the base material or the coating material is dependent upon whether the coating is applied by a packed powder process or by chemical vapor deposition and whether the measurements are to be taken in an emission mode or an absorption mode. In either event, the established curve is utilized by an X-ray spectrometry machine to correlate the count rate and fit the measured count rate onto the curve to provide a direct read-out of thickness of the coating.