Cutting by use of rotating axially moving tool – Tool or tool with support – Having axial – core-receiving central portion
Reexamination Certificate
2005-06-07
2005-06-07
Howell, Daniel W. (Department: 3722)
Cutting by use of rotating axially moving tool
Tool or tool with support
Having axial, core-receiving central portion
C407S041000, C407S050000, C408S232000
Reexamination Certificate
active
06902357
ABSTRACT:
A rotatable cutting tool having s support region (1) with an end surface (2) and a plurality of recesses (4) extending from the end surface (2) and in which, respectively, a plurality of cutting elements (5) are arranged, with each recess having a rigid stop surface (7) for a cutting element (5) and faces in a rotational direction (R) of the tool, and a gripping surface (8) facing in a direction opposite the tool rotational direction (R) and cooperating with the cutting element, with the gripping surface (8) being displaceable by a respective locking element in the direction opposite the tool rotational direction.
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Derwent Publication of an Abstract of f. Soviet Union Patent No. 1,433,650, Oct. 30, 1998, no drawing.
Blessing Matthias
Wanger Werner
Hilti Aktiengesellschaft
Howell Daniel W.
Sidley Austin Brown & Wood LLP
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