Gear cutting – milling – or planing – Milling – Detachable or repositionable tool head
Reexamination Certificate
2006-11-28
2006-11-28
Cadugan, Erica (Department: 3722)
Gear cutting, milling, or planing
Milling
Detachable or repositionable tool head
C409S144000, C409S207000, C408S016000, C408S009000, C073S494000, C356S028000
Reexamination Certificate
active
07140818
ABSTRACT:
A tool attachable to a spindle of a machine tool in the same way as an ordinary tool, capable of being driven without connecting with an external power supply etc., giving a higher rotational speed than that of the spindle of the machine tool without supplying electric power from the outside, and able to be changed automatically, provided with a machining tool for machining a workpiece, a motor for driving the machining tool, a generator for generating electric power to drive the motor by the rotation of the spindle, and a rotational speed detecting device for detecting the rotational speed of the motor based on a received light signal.
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Pillsbury Winthrop Shaw & Pittman LLP
Toshiba Kikai Kabushiki Kaisha
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