Plastic and nonmetallic article shaping or treating: processes – Laser ablative shaping or piercing
Reexamination Certificate
2011-04-05
2011-04-05
Vargot, Mathieu D. (Department: 1742)
Plastic and nonmetallic article shaping or treating: processes
Laser ablative shaping or piercing
C219S121700, C219S121710, C219S121830, C264S482000, C264S040100, C264S156000
Reexamination Certificate
active
07919036
ABSTRACT:
A process for preweakening the inside of an automotive trim piece cover layer of various constructions by use of a laser beam so as to enable formation of an air bag deployment opening in the trim piece formed at the time the air bag deploys. The laser beam impinges the inside surface of the cover to form a groove scoring or spaced perforations to form a preweakening pattern. A robot arm may be used to move a laser generator so as to form the preweakening pattern. The laser beam can be controlled in accordance with sensed conditions to achieve accurate preweakening, and may also be used to trim substrate panels and to perform other cutting operations.
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Bauer David J.
Bauer, Jr., legal representative John W.
Benefiel John R.
Vargot Mathieu D.
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