Electric heating – Metal heating – By arc
Reexamination Certificate
2007-08-21
2007-08-21
Evans, Geoffrey S. (Department: 1725)
Electric heating
Metal heating
By arc
C219S121710
Reexamination Certificate
active
10912525
ABSTRACT:
High speed removal of material from a specimen employs a beam positioner for directing a laser beam axis along various circular and spiral laser tool patterns. A preferred method of material removal entails causing relative movement between the axis of the beam and the specimen, directing the beam axis at an entry segment acceleration and along an entry trajectory to an entry position within the specimen at which laser beam pulse emissions are initiated, moving the beam axis at a circular perimeter acceleration within the specimen to remove material along a circular segment of the specimen, and setting the entry segment acceleration to less than twice the circular perimeter acceleration.
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“Applications Guide Model 53XX UV Series”, Rev. 139706A, Dec. 2003, Electro Scientific Industries, Inc, Portland, Oregon, pp. title, copyright, iii-ix, and 97-143.
Jordens William J.
Lei Weisheng
Matsumoto Hisashi
Pailthorp Robert M.
Simenson Glenn
Electro Scientific Industries Inc.
Evans Geoffrey S.
Stoel Rives LLP
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