Appeal No. 2006-2084
Reexamination Control No. 90/006,360
sides of the insert extending beyond the end of the shank and forming a
cutting tip for cutting a workpiece; and
a threaded fastener extending through the fastener aperture and
threadedly attached to the tool shank for fixedly attaching the tool insert to
the tool shank, the threaded fastener defining a head having a maximum
diameter less than approximately 70% of the diameter of the inscribed circle.
16. A tool insert for a small-shank tool for an automatic lathe,
wherein the small-shank tool includes a tool shank having a maximum width
of less than approximately 9 mm and a tool recess defined at one end of the
shank by two tool-supporting surfaces oriented at an acute angle relative to
each other for receiving and supporting the tool insert, wherein one of the
tool-supporting surfaces is oriented approximately parallel to an adjacent
side of the shank forming an elongated body portion between the tool recess
and the respective side of the shank, and defines a thickness of at least
approximately 1.0 mm, and the small-shank tool further includes a threaded
fastener for fixedly attaching the tool insert to the tool shank; said tool insert
comprising:
four sides defining an approximately rhomboidal-shape, said insert
defining an inscribed circle having a diameter less than approximately 90%
of the shank width, and a fastener aperture extending through the
approximate center of the inscribed circle having a diameter less than
approximately 70% of the diameter of the inscribed circle, the
rhomboidal-shaped insert being receivable within the tool recess of the tool
shank with two sides of the insert each fully engaging a respective
tool-supporting surface of the shank without any substantial portion of the
two sides extending beyond the respective tool-supporting surfaces, and with
a substantial portion of the other two sides of the insert extending beyond the
end of the shank and forming a cutting tip for cutting a workpiece.
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