Cutting by use of rotating axially moving tool – Tool or tool with support – Including detailed shank
Reexamination Certificate
2007-06-05
2007-06-05
Howell, Daniel W. (Department: 3722)
Cutting by use of rotating axially moving tool
Tool or tool with support
Including detailed shank
C408S059000
Reexamination Certificate
active
10488181
ABSTRACT:
The invention relates to a rod-shaped tool made of sintered material that is used to machine a workpiece. Said tool comprises a rod center axis (1), a shaft area (6) and a chip space area (5) adjacent thereto in the direction of the rod center axis (1). The tool has at least one outside chip space (4), which encircles the rod center axis (1), in the chip space area (5) but not in the shaft area (6). The chip space (4) is situated at a minimum distance (a) from the rod center axis (1). A central recess (7) extends in the direction of the rod center axis (1) over the shaft area (6) whereby leading up and into the chip space area (5). The central recess has, in the chip space area (5), a non-circular cross-section and is situated at a maximum distance (A) from the rod center axis (1), said maximum distance being at least as large as the minimum distance (a)
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Howell Daniel W.
Jacobson & Holman PLLC
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