Cutting by use of rotating axially moving tool – Processes – Bit detachable
Reexamination Certificate
2007-08-30
2011-11-01
Gates, Eric A (Department: 3726)
Cutting by use of rotating axially moving tool
Processes
Bit detachable
C406S012000, C406S016000, C033S833000
Reexamination Certificate
active
08047749
ABSTRACT:
Methods and systems are disclosed for drilling counter sink fastener holes in composite materials with conductive foil lightning strike protection systems. Initially a non-destructive depth detector is scanned over a prospective fastener hole location. Then the depth of a conductive foil below a surface is detected. When the detected depth is less than a predetermined depth, a signal that indicates that a countersink fastener hole may be drilled is output. When the detected depth is greater than a predetermined depth, a signal that indicates that a countersink fastener hole may not be drilled is output.
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Georgeson Gary E.
Lea Scott W.
Lee James H.
Safai Morteza
Caven & Aghevli LLC
Gates Eric A
The Boeing Company
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