1
James George Kelley, Todd Jay Rockstroh: Gas turbine engine component with compound cooling holes and method for making the same. General Electric Company, Andrew C Hess, Nathan D Herkamp, November 4, 1997: US05683600 (44 worldwide citation)

A gas turbine engine component includes a wall portion with at least one compound cooling hole formed therein between an external surface of the component and an interior plenum. The at least one compound cooling hole includes a non-circular diffuser opening formed by a laser beam with a non-circula ...


2
Bangalore Aswatha Nagaraj, Brett Allen Boutwell, Todd Jay Rockstroh, Wilbur Douglas Scheidt: Thermal barrier coating protected by thermally glazed layer and method for preparing same. General Electric Company, Eric W Guttag, Jagtiani Guttag, David L Narciso, August 23, 2005: US06933061 (21 worldwide citation)

A thermal barrier coating for an underlying metal substrate of articles that operate at, or are exposed to, high temperatures, as well as being exposed to environmental contaminant compositions. This coating comprises an inner layer nearest to the underlying metal substrate comprising a ceramic ther ...


3
Ui Won Suh, Seetharamaiah Mannava, Todd Jay Rockstroh: Simultaneous offset dual sided laser shock peening with oblique angle laser beams. General Electric Company, Steven J Rosen, VG Ramaswamy, May 27, 2003: US06570125 (11 worldwide citation)

A method to laser shock peen articles such as a gas turbine engine rotor blade with first and second oblique laser beams to form pairs of longitudinally spaced apart first and second laser shock peened elliptical spots that are on opposite sides of the article or blade and transversely offset from e ...


4
Todd Jay Rockstroh, Roger Owen Barbe, Seetha Ramaiah Mannava: Countering laser shock peening induced airfoil twist using shot peening. General Electric Campany, William Scott Andes, Steven J Rosen, May 15, 2007: US07217102 (8 worldwide citation)

A gas turbine engine blade is laser shock peened by laser shock peening a thin airfoil of the blade, forming a laser shock induced twist in the airfoil, and shot peening a portion of the airfoil to counter the laser shock induced twist in the airfoil. The shot peening may be performed before or afte ...


5
Ui Won Suh, Seetharamaiah Mannava, Todd Jay Rockstroh: Simultaneous offset dual sided laser shock peening using low energy laser beams. General Electric Company, Steven J Rosen, VG Ramaswamy, May 27, 2003: US06570126 (6 worldwide citation)

A method for laser shock peening an article by simultaneously firing low energy first and second laser beams to form pairs of longitudinally spaced apart first and second laser shock peened spots that are on opposite sides of the article, simultaneously laser shock peened, and transversely offset fr ...


6
Seetha Ramaiah Mannava, Todd Jay Rockstroh, William Woodrow Shepherd, Ian Francis Prentice, Thomas Froats Broderick: Lower fluence boundary laser shock peening. General Electric Company, William Scott Andes, Steven J Rosen, August 29, 2006: US07097720 (4 worldwide citation)

A method for laser shock peening an article including laser shock peening a first area with at least one high fluence laser beam and laser shock peening a border area between the first area and a non-laser shock peened area of the article with at least one first low fluence laser beam. The border ar ...


7
Seetha Ramaiah Mannava, Todd Jay Rockstroh, Roger Owen Barbe: Countering laser shock peening induced blade twist. General Electric Company, William Scott Andes, Steven J Rosen, April 17, 2007: US07204677 (3 worldwide citation)

A method for laser shock peening a gas turbine engine blade includes laser shock peening a thin airfoil of the blade, forming a laser shock induced twist in the airfoil, and altering a root of the blade to counter the laser shock induced twist in the airfoil. The altering may be done after the laser ...


8
Todd Jay Rockstroh, James Joseph Hoffman: System and method for adjusting performance of manufacturing operations or steps. General Electric Company, V G Ramaswamy, William Scott Andes, General Electric Company, August 31, 2010: US07784183 (2 worldwide citation)

A manufacturing system and manufacturing method for adjusting the performance of manufacturing operations or steps in manufacturing components having three-dimensional external structural characteristics. An embodiment of the system broadly comprises: (a) a plurality of manufacturing operations for ...


9
Mark Samuel Bailey, Michael Paul Hausfeld, Donald Eugene Williams Jr, Todd Jay Rockstroh: Varying fluence as a function of thickness during laser shock peening. General Electric Company, William Scott Andes, Steven J Rosen, June 15, 2010: US07736450 (2 worldwide citation)

A method for laser shock peening an article, such as a gas turbine engine airfoil, with varying thickness by varying a surface fluence of a laser beam over a laser shock peening surface as a function of the thickness beneath a laser shock peened spot formed by the beam on the surface. The fluence ma ...


10
Todd Jay Rockstroh: Single head laser high throughput laser shock peening. General Electric Company, William Scott Andes, Steven J Rosen, May 31, 2005: US06900409

A laser unit in a laser shock peening apparatus for generating a primary laser beam along a primary beam path includes a pulsed free running oscillator with only a single lasing rod. An electro-optic switch external to the free running laser oscillator is operably disposed along the primary beam pat ...