Gregory A Mohr

US Patent:

6466643, Oct 15, 2002

Filed:

Aug 22, 2000

Appl. No.:

09/643688

Inventors:

Clifford Bueno - Clifton Park NY
Kenneth Gordon Herd - Niskayuna NY
Gregory Alan Mohr - Scotia NY
Thomas James Batzinger - Burnt Hills NY
Dennis Michael Walsh - Southlake TX

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01B 1506

US Classification:

378 58, 378 59

Abstract:

A system and method for radiographic inspection of aircraft fuselages includes a radiation source preferably located inside of the fuselage and a radiation detector preferably located outside of the fuselage. A source positioning system is provided for moving the radiation source longitudinally with respect to the fuselage, and a detector positioning system is provided for positioning the radiation detector in longitudinal alignment with the radiation source. The detector positioning system also moves the radiation detector circumferentially with respect to the fuselage. In operation, the radiation detector is moved over the fuselage in a circumferential direction while the radiation source illuminates an adjacent region of the fuselage with radiation.

US Patent:

6614872, Sep 2, 2003

Filed:

Jan 26, 2001

Appl. No.:

09/770986

Inventors:

Clifford Bueno - Clifton Park NY
Gregory Alan Mohr - Scotia NY
Kelly Mark Doyle - Cincinnati OH
Ronald Cecil McFarland - Cincinnati OH

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01N 2304

US Classification:

378 58, 378 55

Abstract:

A system and method for radiographic inspection of airfoil structure on aircraft includes a radiation source located on one side of the airfoil structure and an X-Y scanning device located on an opposing side of the airfoil structure. The X-Y scanning device is positioned to receive radiation from the radiation source. A radiation detector is mounted on the X-Y scanning device so as to be moveable relative to the airfoil structure along t two mutually orthogonal axes. In operation, the radiation detector is moved in a predetermined raster pattern while the radiation source is emitting radiation. This allows a large area to be inspected with single positioning of the X-Y scanning device, thereby improving throughput. The radiation detector converts impinging radiation into electrical signals, and a computer system processes the signals to generate radiographic images of the airfoil structure.

US Patent:

6618465, Sep 9, 2003

Filed:

Nov 12, 2001

Appl. No.:

09/683038

Inventors:

Gregory Alan Mohr - Scotia NY
Clifford Bueno - Clifton Park NY

Assignee:

General Electric Company - Niskayuna NY

International Classification:

G01B 1506

US Classification:

378 58, 378 59, 378146, 378147, 378150, 378160, 378203

Abstract:

An x-ray shielding system includes a beam controller configured to surround an x-ray source and includes a detector shield configured to position behind an x-ray detector. The beam controller includes a source shield and an aperture. The source shield and the detector shield are adapted to block x-rays, and the aperture is adapted to transmit x-rays. A shielded digital radiographic inspection system includes the x-ray source and the beam controller surrounding the x-ray source. The beam controller includes the source shield and the aperture. The aperture is configured to rotate around the x-ray source. The inspection system further includes a digital x-ray detector positioned radially outward from the x-ray source and facing the aperture. The digital x-ray detector is configured to be movable along an orbit around the x-ray source. The inspection system further includes the detector shield configured to be movable with and positioned behind the digital x-ray detector.

US Patent:

6658089, Dec 2, 2003

Filed:

Jul 11, 2002

Appl. No.:

10/064417

Inventors:

Gregory Alan Mohr - Scotia NY
Elizabeth Lokenberg Dixon - Delanson NY
Michael Robert Hopple - Schenectady NY
August David Matula - Sloansville NY

Assignee:

General Electric Company - Niskayuna NY

International Classification:

H05G 128

US Classification:

378162, 378163

Abstract:

An image identification and quality indication system for radiographic inspection includes a flexible substrate, for positioning on a surface of an object to be inspected, and a number of locators and image quality indicators arranged on the flexible substrate. Each locator is configured for indicating a position on the objects surface in a respective radiographic image (image). Each image quality indicator is configured to indicate an image quality of the respective image. An image identification and quality indication method for radiographic inspection includes positioning the flexible substrate on the objects surface, including aligning the locators with a number of visible features on objects surface. The method further includes forming at least one reference mark and image quality mark in each of a number of images of the object, using a locator and image quality indicator, respectively. Each reference mark correlates the respective image with a position on the object.

US Patent:

6662071, Dec 9, 2003

Filed:

Apr 25, 2000

Appl. No.:

09/559305

Inventors:

John Dennis Jackson - Wyoming OH
Dean Michael Robinson - Schenectady NY
Michael Evans Graham - Slingerlands NY
Gregory Alan Mohr - Scotia NY
Olalekan Solomon Odesanya - Schenectady NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

G06F 1900

US Classification:

700159, 700194

Abstract:

A method ( ) for manufacturing a precision part ( ) utilizing a non-precision fixture ( ). The non-precision fixture is precisely measured ( ) and modeled in a CAD program ( ) together with a model of the part ( ). The part model is nested ( ) into the fixture model, and a transformation matrix describing the movement of a coordinate system of the part during the step of nesting is recorded ( ). The transformation matrix may then be used to transform ( ) a tool path that had been developed for the originally designed shape of the fixture. Accordingly, imprecision in the location of a part within an imprecisely measured fixture may be accounted for during subsequent manufacturing operations.

US Patent:

6662088, Dec 9, 2003

Filed:

Jun 28, 2002

Appl. No.:

10/064291

Inventors:

Michael Robert Hopple - Schenectady NY
Elizabeth Lokenberg Dixon - Delanson NY
Kenneth Gordan Herd - Schenectady NY
Gregory Alan Mohr - Scotia NY
Clifford Bueno - Clifton Park NY

Assignee:

General Electric Company - Niskayuna NY

International Classification:

G06F 1900

US Classification:

701 29, 701301, 356 34, 73767, 244134 C, 901 10, 901 44, 901 46

Abstract:

A method for inspecting an aircraft fuselage using an inspection system including a movable detector, wherein the method includes coupling a collision avoidance system to the inspection system detector, monitoring the collision avoidance system during operation of the inspection system, and controlling operation of the inspection system with the collision avoidance system.

US Patent:

6925145, Aug 2, 2005

Filed:

Aug 22, 2003

Appl. No.:

10/646279

Inventors:

Thomas J. Batzinger - Burnt Hills NY, US
Brian W. Lasiuk - Niskayuna NY, US
Peter Allison - Conroe TX, US
Gregory A. Mohr - Scotia NY, US
August D. Matula - Fredericksburg VA, US

Assignee:

General Electric Company - Fairfield CT

International Classification:

G01B015/06

US Classification:

378 59, 378 4

Abstract:

A system and method for high-speed radiographic inspection of fluid transport vessels in which a radiation source and a radiation detector are positioned on opposite sides of the outside surface of the vessel. A positioning system is provided for moving and locating the radiation source and radiation detector longitudinally with respect to the vessel and for moving the radiation source and radiation detector circumferentially with respect to the vessel. In operation, the positioning system causes the radiation source and radiation detector to spiral along the vessel in a coordinated manner while the radiation source illuminates an adjacent region of the vessel with radiation. The radiation is converted into corresponding electrical signals used to generate images of objects in the radiation path. Finally, an operator inspects the images for defects.

US Patent:

7215801, May 8, 2007

Filed:

Jun 5, 2003

Appl. No.:

10/456280

Inventors:

Clifford Bueno - Clifton Park NY, US
Elizabeth Dixon - Delanson NY, US
Walter Dixon - Delanson NY, US
Forrest Hopkins - Scotia NY, US
Michael Hopple - Niskayuna NY, US
Brian Lasiuk - Niskayuna NY, US
Ronald McFarland - Cincinnati OH, US
August Matula - Sloansville NY, US
Robert Mitchell, Jr. - Waterford NY, US
Kevin Moermond - Cincinnati OH, US
Gregory Mohr - Scotia NY, US

Assignee:

General Electric Company - Niskayuna

International Classification:

G06K 9/00

US Classification:

382128, 382274

Abstract:

A method, system and apparatus for processing a radiographic image of a scanned object is disclosed. A pixel offset correction is performed in integer format on the radiographic image using saturation arithmetic to produce an image in integer format with any negative corrected values clipped to a value of zero. The resulting pixels are converted to floating point format and the converted pixels are multiplied by a gain factor. Optionally the resulting pixels are recursively averaged with previous results. The resulting pixels are converted to integer format and the converted pixel values are clamped to a maximum value using saturation arithmetic. Non-functional pixel correction is performed in integer format and the resulting pixel values are clamped to a maximum value using saturation arithmetic. An optional processing path replaces the recursive average by a linear average. The resulting pixel values are optionally filtered to enhance features of interest.