Cutting tool insert
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FIG. 1 is a top and left side perspective view of a cutting tool insert showing our new design;
FIG. 2 is a top plan view;
FIG. 3 is a right side elevational view;
FIG. 4 is a bottom plan view;
FIG. 5 is a cross sectional view taken along line V--V in FIG. 2;
FIG. 6 is a cross sectional view taken along line VI--VI in FIG. 2;
FIG. 7 is a top and left side perspective view of a second embodiment of the cutting tool insert of FIG. 1 showing our new design;
FIG. 8 is a top plan view;
FIG. 9 is a right side elevational view;
FIG. 10 is a bottom plan view;
FIG. 11 is a cross sectional view taken along line XI--XI in FIG. 8;
FIG. 12 is a cross sectional view taken along line XII--XII in FIG. 8;
FIG. 13 is a top and left side perspective view of a third embodiment of the cutting tool insert of FIG. 1 showing our new design;
FIG. 14 is a top plan view;
FIG. 15 is a right side elevational view;
FIG. 16 is a bottom plan view;
FIG. 17 is a cross sectional view taken along line XVII--XVII in FIG. 14;
FIG. 18 is a cross sectional view taken along line XVIII--XVIII in FIG. 14;
FIG. 19 is a top and left side persepctive view of a fourth embodiment of the cutting tool insert of FIG. 1 showing our new design;
FIG. 20 is a top plan view;
FIG. 21 is right side elevational view;
FIG. 22 is a bottom plan view;
FIG. 23 is a cross sectional view taken along line XXIII--XXIII in FIG. 20;
FIG. 24 is a top and left side perspective view of a fifth embodiment of the cutting tool insert of FIG. 1 showing our new design;
FIG. 25 is a top plan view;
FIG. 26 is a right side elevational view;
FIG. 27 is a bottom plan view;
FIG. 28 is a cross sectional view taken along line XXVIII--XXVIII in FIG. 25;
FIG. 29 is a fragmented sectional view of FIG. 2;
FIG. 30 is a fragmented sectional view of FIG. 2;
FIG. 31 is a fragmented sectional view of FIG. 8;
FIG. 32 is a fragmented sectional view of FIG. 8;
FIG. 33 is a fragmented sectional view of FIG. 14;
FIG. 34 is a fragmented sectional view of FIG. 14;
FIG. 35 is a fragmented sectional view of FIG. 20;
FIG. 36 is a fragmented sectional view of FIG. 20;
FIG. 37 is a fragmented sectional view of FIG. 25; and,
FIG. 38 is a fragmented sectional view of FIG. 25.
| D291889 | September 15, 1987 | Pettersson et al. |
| D324690 | March 17, 1992 | Takahashi et al. |
| 4344725 | August 17, 1982 | Seidel |
| 4705434 | November 10, 1987 | Patterson et al. |
| 4741649 | May 3, 1988 | Mori |
| 4787784 | November 29, 1988 | Bernadic et al. |
| 4846609 | July 11, 1989 | Bernadic et al. |
| 4867616 | September 19, 1989 | Jakubowicz |
| 89123399.1 | December 1989 | EPX |
- RTW Brochure "IMTS-1990," p. 2 GP Insert (Brochure was available in Sep. 1990). RTW Brochure "S-Lock Inserts," RTW-90-3 PUB, EOP 44724, p. 2, CCMT Insert (Brochure was available in Sep. 1990). Teledyne Firth Sterling Brochure for "New Grade MP-26 Coated Carbide," p. 2, 3G-General Purpose Insert (Brochure was available in Sep. 1990). Sandvik Advertisement "Sandvik Coromant's New Turning Generation" dated 1987.
Type: Grant
Filed: May 8, 1991
Date of Patent: Nov 15, 1994
Assignee: Kennametal Inc. (Latrobe, PA)
Inventors: Kenneth L. Niebauer (Raleigh, NC), Earl L. Griffin (Raleigh, NC)
Primary Examiner: Alan P. Douglas
Assistant Examiner: Antoine D. Davis
Attorney: James G. Porcelli
Application Number: 7/697,479
