Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Magnetic or suction means
Reexamination Certificate
2006-02-21
2006-02-21
Ashley, Boyer D. (Department: 3722)
Cutting by use of rotating axially moving tool
With work-engaging structure other than tool or tool-support
Magnetic or suction means
C408S088000, C408S135000, C408S141000
Reexamination Certificate
active
07001117
ABSTRACT:
A rotary cutting apparatus comprises a rotary shaft assembly having an axis and adapted to hold a cutting tool coaxial with the axis and, a feed mechanism for moving the cutting tool held by the rotary shaft assembly along the axis of the rotary shaft assembly. The rotary shaft assembly comprises a proximal rotary shaft, an intermediate, a distal rotary shaft which are successively telescopically connected, and a cylindrical housing rotatably holding the distal rotary shaft and movable along the axis together with the distal rotary shaft. The feed mechanism comprises a first rack mounted on the cylindrical housing and extending in parallel with the axis of the rotary shaft assembly, a second rack securely mounted on the body in parallel with the first rack; and, a pinion positioned between and engaged with the first and second racks.
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Chiba Takashi
Mikiya Toshio
Ohtsuka Kenji
Shimada Keisuke
Yamaguchi Munenori
Ashley Boyer D.
Nitto Kohki Co. Ltd.
Talbot Michael W.
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