Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Movable relative to tool along tool-axis
Reexamination Certificate
2005-11-15
2005-11-15
Howell, Daniel W. (Department: 3722)
Cutting by use of rotating axially moving tool
With work-engaging structure other than tool or tool-support
Movable relative to tool along tool-axis
C408S130000, C408S0010BD, C408S224000
Reexamination Certificate
active
06964546
ABSTRACT:
A drilling apparatus includes a drill, a surge control device and a countersink limiter coupled to the drill, and a rotatable cutting tool coupled to the countersink limiter. The cutting tool includes a drilling portion operable to form a hole, a countersink portion operable to form a countersink, and a fillet portion operable to form a longitudinally-curved transition between the hole and the countersink. The depth of the countersink is controlled by the countersink limiter. The surge control device is operable to control the axial speed of the cutting tool.
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Fulbright & Jaworski LLP
Howell Daniel W.
Northrop Grumman Corporation
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