Die assembly

Details Die assembly Die assembly

2005-11-29

2005-11-29

Goodman, Charles (Department: 3724)

Cutting

Other than completely through work thickness or through work...

Combined types of cutting

C083S879000, C493S468000, C225S103000

Reexamination Certificate

active

06968769

ABSTRACT:
A die assembly including a first die with a first die surface and a first cutting rib extending from the first die surface. The first cutting rib includes a first cutting surface parallel to the first die surface. The first cutting rib includes a leg extending from the first die surface to the first cutting surface at a first obtuse angle. A second die includes a second die surface and a second cutting rib extending from the second die surface. The second cutting rib includes a second cutting surface parallel to the second die surface. The second cutting surface is generally parallel to and defines a cutting overlap with the first cutting surface at a cross-section taken through the first and second dies in a cutting position. The cutting rib includes a leg extending from the second die surface to the second cutting surface at a second obtuse angle.

REFERENCES:
patent: 2949151 (1960-08-01), Goldstein
patent: 3060816 (1962-10-01), Martin
patent: 3142233 (1964-07-01), Downie
patent: 3170342 (1965-02-01), Downie
patent: 3244335 (1966-04-01), Downie
patent: 3292513 (1966-12-01), Palmer
patent: 3359773 (1967-12-01), Stuchbery
patent: 3383991 (1968-05-01), Sarka
patent: 3470773 (1969-10-01), Mueller
patent: 3485146 (1969-12-01), Sarka
patent: 3744384 (1973-07-01), Jarritt et al.
patent: 3919925 (1975-11-01), Hayama
patent: 5983768 (1999-11-01), Abt et al.
patent: 6311601 (2001-11-01), Love

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