Cutting insert

- Kennametal Inc.
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Description

FIG. 1 is a perspective view of a cutting insert showing our new design;

FIG. 2 is a top plan view of the cutting insert of FIG. 1, with the bottom view being a mirror image thereof;

FIG. 3 is a side elevational view thereof, with the remaining side elevational views being a mirror image thereof;

FIG. 4 is a perspective view of an alternate cutting insert showing a modified embodiment of our new design;

FIG. 5 is a top plan view of the cutting insert of FIG. 4, with the bottom view being a mirror image thereof;

FIG. 6 is a side elevational view thereof, with the remaining side elevational views being a mirror image thereof;

FIG. 7 is a perspective view of an alternate cutting insert showing a modified embodiment of our new design;

FIG. 8 is a top plan view of the cutting insert of FIG. 7, with the bottom view being a mirror image thereof; and,

FIG. 9 is a side elevational view thereof, with the remaining side elevational views being a mirror image thereof.

Referenced Cited
U.S. Patent Documents
D308975 July 3, 1990 Niebauer
D357693 April 25, 1995 Niebauer
D409632 May 11, 1999 Hartholner et al.
D413612 September 7, 1999 Hartholner et al.
Other references
  • Kennametal Drilling Catalog 7061 (1996), p. 113.
Patent History
Patent number: D423024
Type: Grant
Filed: Jun 30, 1999
Date of Patent: Apr 18, 2000
Assignee: Kennametal Inc. (Latrobe, PA)
Inventors: Rudi Hartlohner (Tuchenbach), Franz Havrda (Grossenseebach), David C. Johnston (Greensburg, PA)
Primary Examiner: Antoine Duval Davis
Attorney: Larry R. Meenan
Application Number: 0/107,535
Classifications
Current U.S. Class: Cutting Tool, E.g., Drill Bit, Etc. (D15/139)
International Classification: 1509;