Cutting tool inserts

- Kennametal Inc.
Description

FIG. 1 is an isometric view of a cutting tool insert in accordance with the subject invention;

FIG. 2 is a top plan view of FIG. 1, wherein the bottom plan view is identical;

FIG. 3 is a side elevation view looking at the right side of the insert in FIG. 2;

FIG. 4 is a side elevation view looking at the insert in FIG. 2 from the bottom of the page;

FIG. 5 is a cross-section view taken along lines "5--5" of FIG. 2; and,

FIG. 6 is a cross-section view taken along lines "6--6" of FIG. 2.

Referenced Cited
U.S. Patent Documents
D308975 July 3, 1990 Niebauer
D352511 November 15, 1994 Niebauer et al.
D357693 April 25, 1995 Niebauer
D389497 January 20, 1998 Muren et al.
5116167 May 26, 1992 Niebauer
5122017 June 16, 1992 Niebauer
5476346 December 19, 1995 Lundstrom
Foreign Patent Documents
0346421 April 1990 EPX
Patent History
Patent number: D413612
Type: Grant
Filed: Jan 26, 1999
Date of Patent: Sep 7, 1999
Assignee: Kennametal Inc. (Latrobe, PA)
Inventors: Rudi Hartlohner (Tuchenbach), Franz Havrda (Grossenseebach)
Primary Examiner: Antoine Duval Davis
Attorney: John J. Prizzi
Application Number: 0/99,669
Classifications
Current U.S. Class: Cutting Tool, E.g., Drill Bit, Etc. (D15/139)
International Classification: 1509;