Electric heating – Metal heating – By arc
Reexamination Certificate
2007-08-07
2010-10-12
Evans, Geoffrey S (Department: 3742)
Electric heating
Metal heating
By arc
Reexamination Certificate
active
07812282
ABSTRACT:
Methods are provided of forming a plurality of fan-shaped effusion holes on a combustor having a surface, each hole having an outlet on the combustor surface. The method may include rotating the combustor relative to a laser beam, and positioning the combustor to a first position where the laser beam is at a first predetermined angle relative to the combustor surface. The laser beam is pulsed at the combustor surface to form a first plurality of trepan cuts. The first predetermined angle is adjusted to a second position where the laser beam is at a second predetermined angle relative to the combustor surface. The laser beam is pulsed at each trepan cut of the first plurality of trepan cuts, to thereby form a cut for at least a portion of the fan shape of each effusion hole outlet, wherein each cut overlaps a trepan cut of the first plurality of trepan cuts.
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Dudebout Rodolphe
Flamand Sossity A.
Frye Lowell
Kuhn Terrel E.
Woodcock Gregory O.
Evans Geoffrey S
Honeywell International , Inc.
Ingrassia Fisher & Lorenz P.C.
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